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GE H

EALTHCARE

D

IRECTION

2307224-100, R

EVISION

6

D

ISCOVERY

LS S

YSTEM

S

ERVICE

M

ANUAL

Page 146

Chapter 6 - Table

6.2.6.14 Install Clutch Driver Unit (P/N 2340282)

Follow the instructions in this section to install the Clutch Driver Unit, P/N 2340282.

CAUTION

Refer to

Figure 6-43

. The Clutch Driver Unit bracket may require modification to fit into the

space provided by filing the holes or grinding the edge of the bracket. Be careful when filing
or grinding. Cover the top of the unit to prevent metal filings from entering the unit and
causing shorts. The unit uses 120 VAC..

Figure 6-43:

Install Clutch Driver Unit

1.) Use a 5 mm Allen wrench to fasten the Clutch Driver Unit into place with the following

hardware:
• Two M6 x 16 mm screws, P/N 46-214695P34
• Two M6 lock washers, P/N 2315373-4
• Two M6 flat washers, P/N 2109878-3

Note:

The J18 and J221 cable connectors are mislabeled on the Clutch Driver Unit. Refer to

.

Use a permanent marker to cross out the original labels and relabel the connections on the face of
the unit.

2.) Attach the connector labeled

J221

to the connector relabeled J221 (formerly J18) on the

Clutch Driver Unit.

Figure 6-44:

Clutch Driver Unit

Use a 5 mm Allen wrench and
fasten with M6 hardware.

Clutch Driver Unit

Bracket may need modification.

To AC Filter

Relabel this connector

J18

.

Relabel this connector

J221

.

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Содержание Discovery LS

Страница 1: ...GE Healthcare OPERATING DOCUMENTATION 2307224 100 Rev 6 Discovery LS System Service Manual ...

Страница 2: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 2 ...

Страница 3: ...te si přečetli tento provozní návod a pochopili jeho obsah V případě nedodržování této výstrahy může dojít k poranění pracovníka prodejního servisu obslužného personálu nebo pacientů vlivem elektrického proudu respektive vlivem mechanických či jiných rizik ADVARSEL DA Denne servicemanual findes kun på engelsk Hvis en kundes tekniker har brug for et andet sprog end engelsk er det kundens ansvar at ...

Страница 4: ...ez le technicien l opérateur ou le patient des blessures dues à des dangers électriques mécaniques ou autres WARNUNG DE Diese Serviceanleitung existiert nur in Englischer Sprache Falls ein fremder Kundendienst eine andere Sprache benötigt ist es aufgabe des Kunden für eine Entsprechende Übersetzung zu sorgen Versuchen Sie nicht diese Anlage zu warten ohne diese Serviceanleitung gelesen und verstan...

Страница 5: ...ischi 警告 JA このサービスマニュアルには英語版しかありませんサービスを担当される業者が英語以外の言語を要求される場合翻訳作業はその業者の責任で行うものとさせていただきますこのサービスマニュアルを熟読し理解せずに装置のサービスを行わないでくださいこの警告に従わない場合サービスを担当される方操作員あるいは患者さんが感電や機械的又はその他の危険により負傷する可能性があります 경고 KO 본 서비스 지침서는 영어로만 이용하실 수 있습니다 고객의 서비스 제공자가 영어 이외의 언어를 요구할 경우 번역 서비스를 제공하는 것은 고객의 책임입니다 본 서비스 지침서를 참고했고 이해하지 않는 한은 해당 장비를 수리하려 고 시도하지 마십시오 이 경고에 유의하지 않으면 전기 쇼크 기계상의 혹은 다른 위험으로부터 서비스 제공자 운영자 혹은 환...

Страница 6: ...outro idioma é da responsabilidade do cliente fornecer os serviços de tradução Não tente consertar o equipamento sem ter consultado e compreendido este manual de assistência técnica O não cumprimento deste aviso pode pôr em perigo a segurança do técnico do operador ou do paciente devido a choques elétricos mecânicos ou outros ATENŢIE RO Acest manual de service este disponibil numai în limba englez...

Страница 7: ...al de servicio La no observancia del presente aviso puede dar lugar a que el proveedor de servicios el operador o el paciente sufran lesiones provocadas por causas eléctricas mecánicas o de otra naturaleza VARNING SV Den här servicehandboken finns bara tillgänglig på engelska Om en kunds servicetekniker har behov av ett annat språk än engelska ansvarar kunden för att tillhandahålla översättningstj...

Страница 8: ...n performing all electrical work on these products GE will use its own specially trained field engineers All of GE s electrical work on these products will comply with the requirements of the applicable electrical codes The purchaser of GE equipment shall only utilize qualified personnel i e GE s field engineers personnel of third party service companies with equivalent training or licensed electr...

Страница 9: ...removed and replaced See Radiation Survey Form Instructions or contact your EHS Specialist Rev 2 July 21 2005 LITHIUM BATTERY CAUTIONARY STATEMENTS CAUTION Risk of Explosion Danger of explosion if battery is incorrectly replaced Replace only with the same or equivalent type recommended by the manufacturer Discard used batteries according to the manufacturer s instructions ATTENTION Danger d Explos...

Страница 10: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 10 Important Precautions ...

Страница 11: ... CH 5 Software install corrections and update CH 10 Planned Maintenance update CH 11 Wiring Connections update App A System Calibration Quick Guide added 2 Updated Software Load from Cold LFC 3 11 19 02 Removed SW LFC Chapter 4 03 27 03 CH 2 Added Emergency Stop warnings 5 06 15 06 Made revisions throughout CH 6 Revised to reflect new table design and replaced table wiring diagrams App C Added VQC...

Страница 12: ...xplanation about CPDU and NGPDU in Section 3 2 1 on page 80 Updated the manuals referenced in Section 3 4 on page 82 CH 4 Updated the manuals referenced page 103 CH 7 Updated the manuals referenced on page 223 Updated the LighSpeed systems referenced in Section 7 1 1 on page 223 Updated the manuals referenced in Sections 7 2 and 7 3 on page 226 CH 8 Removed the VQC Theory subheading since no body ...

Страница 13: ... System 37 1 5 2 2 Restoring Power to the System 37 1 5 3 Gantry Rotation Mechanical and Gravitational Energy 38 1 5 3 1 Disable Gantry Rotation 38 1 5 3 2 Restore Gantry Rotation 38 Section 1 6 General Safety Guidelines 39 1 6 1 General Safety Definitions 39 1 6 2 IEC Symbols 40 1 6 3 General Hazards 41 1 6 4 General Electrical Hazards 41 1 6 5 General Electrical Precautions 41 1 6 6 General Unpa...

Страница 14: ...3 1 7 Gantry E Stop 54 2 3 2 CT Mechanical Hazards 54 2 3 2 1 Fastener Torque Specifications 55 2 3 2 2 Rotational Locking Pin 57 2 3 2 3 X Ray Tube Hoist 58 2 3 2 4 Front and Rear Cover Dollies 58 Section 2 4 Chemicals and Materials 58 2 4 1 Slip Ring Brush Dust and Debris 58 2 4 1 1 Cleaning Equipment 58 2 4 1 2 Personal Protection Equipment PPE 58 2 4 1 3 Recommended Cleaning Procedure 58 2 4 2...

Страница 15: ...rd 74 2 8 7 Rating Labels 74 Section 2 9 CT PET System Safety 74 2 9 1 CT PET Gantry Safety 74 2 9 1 1 Clearance Between Gantries in Service Position 74 2 9 1 2 Safety Measures While Moving PET Gantry 74 2 9 1 3 CT PET Emergency Stops 75 2 9 2 CT PET Table Safety 76 2 9 2 1 Secondary Base Drive Mechanism Safety Automated Tables 77 2 9 2 2 Table Secondary Base Remote Control Switch Safety Manual Ta...

Страница 16: ...8 E Stop Safety 89 Section 3 9 Covers 89 Section 3 10 System Start Up 93 3 10 1 Powering Up the PET Peripherals and Subsystems 94 3 10 2 Switching to the PET User Interface Display on the Scan Monitor 95 Section 3 11 System Shut Down 96 3 11 1 Shutting Down the PET CT System 96 3 11 2 Switching OFF Power to PET Subsystems and Peripherals 97 3 11 3 Shutting Down the CT and PET Applications 98 3 11 ...

Страница 17: ... PET and CT Position Switches and Switch Rail 124 6 2 5 6 Remove the Switch Rail 125 6 2 5 7 Disconnect and Discard the CT PET Positions Cable P N 2318721 126 6 2 5 8 Remove the Cable Harness P N 2271256 from the Table 127 6 2 5 9 Remove the INTF SW and CL CONT I Cable P N 2309066 from the Table 128 6 2 5 10 Remove the Motor Clutch Assembly P N 2309067 129 6 2 5 11 Assemble and Attach the Spreader...

Страница 18: ... and Install PET Detent Adjuster 173 6 2 6 34 Shim the PET Detent Assembly 174 6 2 6 35 Install Optical Sensor P N 2350570 177 6 2 6 36 Align the Flag Plates to the Optical Sensor 179 6 2 6 37 Install the Table Latch 180 6 2 6 38 Adjust the Table Latch 182 6 2 6 39 Install the New Characterization Bracket 185 6 2 6 40 Install the Top Cover Brackets 186 6 2 6 41 Install the Fourth Top Cover Bracket...

Страница 19: ...pins Clutch Does Not Engage 216 6 3 6 1 Symptom 216 6 3 6 2 Probable Causes and Suggestions 216 6 3 7 Gantry Does Not Run System Light Tests 217 6 3 7 1 Symptom 217 6 3 7 2 Probable Causes and Suggestions 217 Section 6 4 Procedures and Adjustments 217 Section 6 5 Replacement Procedures 217 6 5 1 Replacing the Secondary Base Timing Belt 217 6 5 2 Replacing the Secondary Base Front Pulley 218 6 5 3 ...

Страница 20: ...Gantry Service Movement 241 7 6 2 Activating the Driving Mechanism 241 Chapter 8 System QC Calibration and Functional Tests 243 Section 8 1 System QC 243 8 1 1 CT PET Volumetric Calibration and Quality Control Procedure VQC 243 8 1 1 1 Initial Table Alignment 243 8 1 1 2 Reset the Software Alignment Parameters 244 8 1 1 3 Positioning the VCQ Phantom 244 8 1 1 4 Scanning and Reconstructing the VQC ...

Страница 21: ...Table Retractor Cables 266 10 1 4 2 Automated and Extended Table Retractor Cables 267 10 1 5 Secondary Base Cables 268 10 1 5 1 Manual Table Secondary Base Cables 268 10 1 5 2 Automated and Extended Table Secondary Base Cables 268 10 1 6 CT Gantry Cables 269 10 1 6 1 CT Gantry Cables Manual Table 269 10 1 6 2 CT Gantry Cables Automated and Extended Table 270 Section 10 2 PET Gantry 271 Section 10 ...

Страница 22: ...s Not Stop at the Limit Switch and Collides with Mechanical Stopper 319 12 2 6 Base Axis Stops at Limit Switch But Workstation Displays Message Move Table to CT Position 319 Section 12 3 Automated Table Operation Issues 322 12 3 1 Clutch Fails to Engage Disengage 322 12 3 2 Base Axis Does Not Move 325 12 3 3 Base Axis Movement Malfunction 328 12 3 4 Base Axis Does Not Stop at the PET or CT Positio...

Страница 23: ...ings 339 Section A 2 Part Lists 342 A 2 1 Gantry and Cables 342 A 2 2 Base Casting 342 A 2 3 Legs 343 A 2 4 Linear Bearings 343 A 2 5 Driving Mechanism 345 A 2 6 Cabling 346 Appendix B System Calibration Quick Guide 347 Section B 1 Daily Calibrations 348 Section B 2 Weekly Calibrations 350 Section B 3 Three Monthly Calibrations 355 ...

Страница 24: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 24 Table of Contents ...

Страница 25: ...onal Lock Assembly 57 Figure 2 17 Rotational Lock Assembly Operation 57 Figure 2 18 Table Service Outlet and Safety Switches 60 Figure 2 19 Table Switches 60 Figure 2 20 Table Touch Sensor Jumpered Out 61 Figure 2 21 H3 Console On Off Power Switch Front Cover Removed 61 Figure 2 22 CPDU Front and Rear Exposed View 62 Figure 2 23 CPDU Power Lamp CPDU Top Cover Opened and Latched 63 Figure 2 24 CPDU...

Страница 26: ...ront Roll up Cover 114 Figure 6 3 Remove the Table Side Covers 115 Figure 6 4 Remove the Side Elevator Covers 116 Figure 6 5 Remove the ETC Cover 117 Figure 6 6 Remove the Middle Support Bar and Bracket 117 Figure 6 7 Table Elevator Tilt Drive Assembly 118 Figure 6 8 Remove Cover Brackets from ETC chassis 118 Figure 6 9 Characterization Calibration Bracket 119 Figure 6 10 Calibration Bar with Tab ...

Страница 27: ...r 151 Figure 6 53 Route Optical Sensor Across ETC Board 151 Figure 6 54 Tie Off Old ETC I F J8 Connector 152 Figure 6 55 Disconnect ETC Cables 152 Figure 6 56 Attach New Ribbon Cable to ETC I F J4 153 Figure 6 57 Connect New Cable to J24 153 Figure 6 58 Connect New Ribbon Cable to Existing Ribbon Cable 154 Figure 6 59 Connect Existing Signal Harness to New Ribbon Cable in J24 154 Figure 6 60 CMD C...

Страница 28: ...Figure 6 109 Install Top Cover Bracket P N 233371 187 Figure 6 110 Install Ten Cosmetic Cradle Caps P N 46 221523P10 188 Figure 6 111 Automated Table Covers 189 Figure 6 112 Secondary Base Covers 190 Figure 6 113 Assemble the Roller Cover Guides 191 Figure 6 114 Secondary Base Side Rail Slot Locations 192 Figure 6 115 Fasten Roller Cover Guides into Place 192 Figure 6 116 Install the Roller Cover ...

Страница 29: ... General View 1 232 Figure 7 11 Retractors Mechanical Connection General View 2 232 Figure 7 12 External Retractor Cables Cross Section 233 Figure 7 13 Placing Cable Inside Retractor 234 Figure 7 14 External Retractor Connected to Legs Crossbeam 235 Figure 7 15 External Retractor and Cables 235 Figure 7 16 Internal Retractor Cables 236 Figure 7 17 External and Internal Retractors Connected to Legs...

Страница 30: ...ns 283 Figure 10 11 PET System Power Interconnections 284 Figure 10 12 PET E Stop Wiring 285 Figure 10 13 CT E Stop Wiring 286 Replacement Parts 287 Figure 11 1 Gantry Rear View 287 Figure 11 2 Base Plate and Rollers 289 Figure 11 3 Linear Bearing Assembly and Adjusters 290 Figure 11 4 Positioning Pin 291 Figure 11 5 PET Gantry Retractor Assembly Schematic Illustration Only 292 Figure 11 6 Seconda...

Страница 31: ...Disengage 331 Figure 12 11 Cradle Drive Unit 332 Figure 12 12 Troubleshooting for Base Axis Does Not Move 333 Figure 12 13 Solenoid Locking Mechanism and CT Position Latch 334 Figure 12 14 Base Axis Schematics Extended Cradle Table 335 Figure 12 15 Cradle Axis Schematics Extended Cradle Table 336 Illustrated Parts Breakdown 339 Figure A 1 Discovery LS Gantry Assembly Drawing 1 339 Figure A 2 Disco...

Страница 32: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 32 List of Figures ...

Страница 33: ... Manual Set The following manuals explain how to install operate and service the system 1 3 Referenced Documents The Discovery LS system combines components from two GE systems the LightSpeed Plus LightSpeed Ultra or LightSpeed 16 CT Scanner and the PET Advance Imaging System Information relating to the service of these two systems can be found in the following documents For the CT components For ...

Страница 34: ...Maintenance Procedures CD ROM Direction 5112972 200 For the PET components For general PET service information refer to Advance PET Imaging System Service Manual Direction 2100507 For PET component FRUs refer to the PET Advance NXi System Illustrated Parts List Direction 2286765 100 For PET repair procedures refer to the Advance PET Imaging Repair Procedures Direction 2100323 For PET planned maint...

Страница 35: ...iagonal Cutting Pliers 1 Multipurpose Flat Nose Pliers 1 Long Nose Pliers 1 Cordless Drill 1 Hammer Drill 1 Hex Key Set metric 1 T Handle Hex Key Set metric 1 Combination Wrench Set metric 1 Premium Adjustable Wrench 1 High Visibility Urethane Dead Blow Hammer 1 Polymer Replaceable Face Hammer 1 Engineer s Hammer 1 Scribe 1 Ratchet for a 1 2 in Drive 1 1 1 8 in Socket for a 1 2 in Drive 1 14 mm He...

Страница 36: ...vide protection against electrical shock or un commanded equipment motion Personal Protection Equipment PPE is required and must be worn when performing service on this equipment Always use PPE when working with hazardous chemicals or materials The service switches and circuit breakers described hereafter are not to be relied on as personal protection devices They do not replace LOTO of main power...

Страница 37: ...ote The electrical panel may look different but the process is the same The handle of the electrical panel will have a means of locking it in place after the handle is placed in the Off position 5 Wait 5 minutes for any stored energy in capacitors to dissipate 6 Verify that all energy was dissipated as follows Take the top and front cover off the PDU Measure incoming system power at TS1 for NGPDU ...

Страница 38: ...d handle is shown in Figure 1 3 without LOTO devices since there is no place to attach them Figure 1 3 Gantry Rotation Lock Out 4 Remove power from the system as described in Section 1 5 2 1 on page 37 1 5 3 2 Restore Gantry Rotation 1 Verify all test equipment is removed from the Gantry and all components are installed and torqued per service procedures 2 Notify affected personnel that equipment ...

Страница 39: ...eration call the service office for further instructions and notify the customer that the system is not to be used until the problem is resolved 7 The service engineer must be well acquainted with the Safety chapter of the Discovery LS Operator Guide P N 2288677 100 8 Safe servicing requires that the field engineer has a thorough knowledge of all equipment controls and safety devices 9 The product...

Страница 40: ...e used to identify conditions or actions for which a potential hazard may exist which will or can cause minor personal injury or property damage if the instructions are ignored 1 6 2 IEC Symbols The system may have labels with one or more of the following symbols These symbols indicate the IEC standards to which the system conforms Symbol IEC Standard Alternating Current Protective Earthing Point ...

Страница 41: ... circuit breakers that will not reset CAUTION Conductive fluids that seep into the active circuit components of the system may cause short circuits resulting in electrical fires 1 6 5 General Electrical Precautions 1 Verify with hospital engineering department that the designated power line is stable If any doubt connect a line recorder for 24 hours at least 2 When assembling replacing system card...

Страница 42: ...ffected devices Increase the distance between the equipment and the affected device Provide a separate power source to the affected device Consult sales or service representative of the affected device for further suggestions The manufacturer takes no responsibility for any interference caused by the use of non recommended interconnect cables or by unauthorized change or modifications to the Disco...

Страница 43: ...s If any of the covers should become damaged contact your local GE Sales or Service representative immediately for replacement or repair Only qualified service personnel trained in the service and operation of this scanner should remove any cover or service this equipment Safety features were incorporated into the design for everyone s protection Equipment covers remain the primary means of protec...

Страница 44: ...ry Compliance Labels Figure 2 2 X ray Icon 2 2 2 2 Lights and Lamps Gantry and Console X Ray On Indicator Lamps Both the gantry and the console have x ray indicator displays The system does not have an audible x ray ON indicator nor is it required by FDA The visual indicator is illuminated when x ray is generated The X ray On icon located on the gantry s front cover display is shown in Figure 2 3 ...

Страница 45: ...iring and configuration details 2 2 3 Emergency Switches Buttons and Locks WARNING ACTIVATION OF THE CT E OFF EMERGENCY OFF DOES NOT STOP MOVEMENT OR SHUTDOWN POWER TO THE PET MOTION CONTROL SUBASSEMBLY OF THE DLS SYSTEM ONLY THE E STOP EMERGENCY STOP BUTTON LOCATED INSIDE THE PET GANTRY COVERS WILL STOP THE PET MOTION CONTROL SUBSYSTEM IMMEDIATELY AND SHUT DOWN POWER TO THE MOTION CONTROL 2 2 3 1...

Страница 46: ...antry control panel there is an emergency stop button Refer to Figure 2 5 The E Stop buttons are labeled with two inverted equilateral triangles inside a circle with red lettering Figure 2 5 Gantry E Stop Button To disable gantry rotation or the x ray generation and table drive functions always use the E stop switches The E Stop switches are momentary contacts that latch the system into the E Stop...

Страница 47: ...When activated the switch disables cradle drive power The cradle unlatches when cradle drive power is removed Figure 2 8 Table Tape Switches In case of an emergency a Cradle Latch button is provided on the gantry control panel It is a toggle switch When engaged it unlatches the cradle but does not remove power to the cradle s drive To relatch the cradle simply press the cradle latch button again N...

Страница 48: ...out and tag out of main power to ensure personal safety Switches and breakers are intended to only inhibit particular system functions and equipment operation They do not eliminate or remove the electrical or mechanical hazards that exist Because hardware can fail and defeat the functionality of these devices only Lockout Tagout ensures protection from unattended gantry rotation and electrocution ...

Страница 49: ...onal protection equipment Lock out and tag out power at the main disconnect Always use and follow procedures described in the service documentation when servicing this equipment 2 3 1 2 CT Gantry Electrical Potential Hazards All uninsulated electrical contacts including the slip ring have secondary covers in place to protect service personnel from accidental contact Refer to Figure 2 11 Removal of...

Страница 50: ...ntry Electrical Hazard Labels If a secondary cover can be removed and it potentially exposes a service person to an uninsulated electrical hazard a warning label is applied to or near the secondary cover In the gantry voltage hazards in excess of 120 VAC are labeled However the 120 VAC present in the gantry is of sufficient amperage to cause electrocution See Figure 2 12 for the types of labels us...

Страница 51: ... from Axial Encoder DS2 Green RST Indicates status of the HVDC and gantry drives circuit in PDU On Steady HVDC and Drives enabled Slow Flash E Stop activated HVDC and Drives disabled Fast Flash Table Tape Switch activated Cradle Tilt and Elevation disabled DS3 Yellow AX DR ON Indicates the Axial Drive Contactor in the PDU is energized DS4 Green ENBL Indicates the Axial Drive Contactor in the PDU i...

Страница 52: ... Gantry E Stop and Service Outlets Right Side of Gantry 2 3 1 5 Service Switches and Circuit Breakers A number of service switches are provided as means of disabling hazards at particular points in the gantry for ease of service The gantry service switches are STC Service Switches Power Pan Circuit Breaker Gantry E Stop STC E Stop and Service Outlets Service E Stop Outlets ...

Страница 53: ...C Service Switches Shown in Off Position and LEDs Table 2 2 STC Service Switch Descriptions Label Description S1 Momentary Pushbutton Resets gantry drives enable circuit in PDU S2 Switch enables or disables the Axial Drive function Default position is up enable S3 Switch enables or disables the HVDC function Default position is up enable S4 Switch enables or disables Gantry 120 VAC function Defaul...

Страница 54: ...d gantry respectively Figure 2 15 Power Pan Circuit Breaker 2 3 1 7 Gantry E Stop The gantry s internal E Stop performs the same function as the E Stops mounted to the console and the gantry covers See Figure 2 13 2 3 2 CT Mechanical Hazards Within the Gantry are several hazards that can cause personal injury from Moving assemblies rotational Assembly weights tube and covers Chemicals such as slip...

Страница 55: ...t is on a regular Calibration schedule is kit number 46 268445G1 This torque wrench kit has wrenches that measure inch pounds and foot pounds and Newton Meters Make any necessary conversions for the torque wrench you are using The units of measure are typically marked on most torque wrenches To make a conversions to Kgcm and Newton meters use Table 2 3 or use the following conversion factors To co...

Страница 56: ...5 0 073 1 0 2 1 77 0 145 2 0 3 2 66 0 221 3 0 4 3 54 0 295 4 0 5 4 43 0 369 5 0 6 5 31 0 443 6 0 7 6 20 0 516 7 0 8 7 08 0 590 8 0 9 7 99 0 664 9 1 8 85 0 738 10 2 2 17 7 1 48 20 4 3 26 6 2 21 30 6 4 35 4 2 95 40 8 5 44 3 3 69 51 0 6 53 1 4 43 61 2 7 62 0 5 16 71 4 8 70 8 5 90 81 6 9 79 7 6 64 91 8 10 88 5 7 38 102 20 177 14 8 204 30 266 22 1 306 40 354 29 5 408 50 443 36 9 510 60 531 44 3 612 70 ...

Страница 57: ...oned directly across from the teeth in the rotational assembly Refer to Figure 2 17 To operate the lock Turn the handle clockwise until the teeth on the lock fully engage the teeth on the rotating assembly You can rock the rotating assembly slightly if its necessary to align the teeth Hand tighten until snug Do not over tighten Visually verify that the teeth are engaged Turn the handle counter clo...

Страница 58: ...are released This dust may become an inhalation hazard for individuals with respiratory aliments or diseases It is recommended that a respirator be worn during service 2 4 1 1 Cleaning Equipment Use a HEPA High Efficiency Particulate Air vacuum cleaner to remove residual brush debris Do not use a standard vacuum cleaner because it cannot filter out all of the debris and will exhaust it back into t...

Страница 59: ...College Avenue Cudahy WI 53110 2 4 3 Oils Tube Tank and Hydraulic Oil resistant gloves should be worn when working with oil or performing clean up of it Dispose of chemicals rags and materials in accordance with hospital and local government environmental and safety requirements 2 4 4 Lead Wear gloves and wash hands after handling lead The CT detector uses a small amount of lead tape and a trace a...

Страница 60: ...never power is present at the table service outlets 2 5 1 2 Service Outlet Refer to Figure 2 18 A service outlet is located on the table s power assembly It is protected by CB3 in the PDU Figure 2 18 Table Service Outlet and Safety Switches 2 5 1 3 Switches Refer to Figure 2 19 The Table Safety Service switches are located on top of the power assembly These switches are a subset of the 120 VAC swi...

Страница 61: ...operate the table with the covers removed the sensors must be jumpered Figure 2 20 Table Touch Sensor Jumpered Out 2 5 3 Chemical Hazards Always wear personal protection equipment that prevents inhalation digestion and absorption through skin of chemicals 2 6 Console H3 or GOC1 The Console On Off Power Switch is shown in Figure 2 21 Figure 2 21 H3 Console On Off Power Switch Front Cover Removed Se...

Страница 62: ...can literally explode when power is applied Be sure that all secondary protective covers on the PDU are in place before the PDU is energized Potential hazards are Axial drive power for gantry rotation AC High voltage DC for x ray generation floating DC Distributed console table and gantry power AC 2 7 1 Compact Power Distribution Unit CPDU The CPDU is shown in Figure 2 22 Figure 2 22 CPDU Front an...

Страница 63: ...tected Service Outlets CPDU Refer to Figure 2 22 The service outlet is protected by a circuit breaker The outlet is located on the A4 panel 2 7 1 3 Circuit Breakers and Switches CPDU Circuit Breakers Refer to Figure 2 24 There are three 3 groups of circuit breakers in the CPDU used to protect various parts of the system CB1 Console AC Power CB3 Table and Gantry AC Service Outlets CB4 Table and Gan...

Страница 64: ...h is used to disable 120 VAC It should remain in the On position at all times Figure 2 25 Auxiliary Gantry Power Switch CPDU Rear 2 7 1 4 Mechanical Hazards None The CPDU s top cover employs latches on both sides to hold the cover in the open position See Figure 2 23 2 7 2 New Global Power Distribution Unit NGPDU The NGPDU is shown in Figure 2 26 Figure 2 26 NGPDU Front and Rear Exposed View Auxil...

Страница 65: ...GPDU Refer to Figure 2 27 A small power lamp is visible on the front cover When illuminated this lamp indicates power is present within the NGPDU Figure 2 27 NGPDU Power Lamp 2 7 2 2 Protected Service Outlets NGPDU Refer to Figure 2 28 The service outlet is protected by a circuit breaker The outlet is located on the Terminal panel Figure 2 28 NGPDU Circuit Breakers Power Lamp ...

Страница 66: ...allation and in the service manual safety labels are affixed at various locations in the PET subsystem to protect you and the equipment from potentially hazardous conditions The safety labels cover the following concerns Electrical safety Mechanical motion safety Laser safety and regulatory requirements Radiation safety Other labels for temperature hazards and rating The safety label colors depend...

Страница 67: ...nd these instructions before working on the scanner WARNING ALWAYS FOLLOW THE INSTRUCTIONS ON THE SAFETY LABELS 2 8 3 1 Electrical Safety Labels The electrical safety labels visible to the user and or service personnel are shown in the following illustrations DANGER ELECTRIC SHOCK HAZARD LOCK OUT AND TAG OUT THE FACILITY POWER DISCONNECT BEFORE REMOVING THESE COVERS Location Inside the electronics...

Страница 68: ...xample Location 1 High Voltage Power Supply 2 Top RH and LH front of gantry in the vicinity of the high voltage detector connections and cables Instructions High voltage is present at these locations in the high voltage power supply cables and casettes Turn off the HV circuits if you need to work in these areas Red DANGER HIGH VOLTAGE White ...

Страница 69: ...20V LOCK OUT AND TAG OUT TABLE GANTRY POWER AT THE PDU BEFORE ANY SERVICE IS PERFORMED IN THIS AREA Location PDU cover or vicinity of pcu cover Instructions Hazardous electrical conditions are expected in the PCU It is advised to follow the label instructions before removing the PCU covers Yellow CAUTION HIGH CURRENT LOCK OUT AND TAG OUT REDDOG HV AT THE PDU BEFORE ANY SERVICE IN THIS AREA Locatio...

Страница 70: ...et At the 5 volt high current circuit from the power supply to the VME backplane Instructions A high current hazard is present at the cabinet power supply and the VME backplane Follow the label instructions or severe burns may be caused by accidental short circuits USE SAME TYPE AND SAME RATING REPLACEMENT FUSES White Location Fused areas Instructions The fuses in the PCU must be replaced with the...

Страница 71: ...fan Instructions The fans in the gantry have sharp blades not covered by any guards other than the fiberglass covers Do not touch CAUTION MOVING PARTS WATCH YOUR FINGERS Location 1 On the collimator carbon fiber cover inside the gantry opening 2 At the pin loader Instructions The collimator motion and the radioactive source loader may move while there is service access to the marked pinch points E...

Страница 72: ...abels are needed to cover all regulatory requirements and to mark all possible service or user access and observation points Follow the label instructions and do not stare directly into the beam LASER RADIATION DO NOT STARE INTO BEAM 670 mm LASER DIODE 1 0 MILLIWATT MAXIMUM OUTPUT CLASS II LASER PRODUCT USA BASE COVER LASER APERTURE Do not stare into beam NEAR LASER APERTURES CAUTION LASER RADIATI...

Страница 73: ...DIOACTIVE PINS PIN REMOVAL WILL INCREASE DOSE RATE USE THE PROVIDED TOOL TO HANDLE PINS Magenta Location Source pin storage shield PIG Instructions The radioactive pin sources are placed in the yellow shield Removal of the pins from the pig will result in considerable exposure to radiation Minimize exposure time Use the long handle tool Do not remove unshielded pins from the room Yellow ...

Страница 74: ...lt in injury due to proximity of sharp metal parts to body during performance of service tasks 2 9 1 2 Safety Measures While Moving PET Gantry CAUTION When moving the PET gantry to and from its service position be aware of possible collision and injury to personnel standing in between the gantries or close to the sides of the PET gantry In addition make sure that all equipment and furniture is mov...

Страница 75: ...UBASSEMBLY OF THE DLS SYSTEM ONLY THE E STOP BUTTON LOCATED INSIDE THE PET GANTRY COVERS WILL STOP THE PET MOTION CONTROL SUBSYSTEM IMMEDIATELY AND SHUT DOWN POWER TO THE MOTION CONTROL Two E Stops emergency stop buttons are provided for the use by service personnel when the gantry covers are removed for service operations Refer to Figure 2 29 The CT gantry E Stop button is located on the right si...

Страница 76: ...PPORTING ARMS OF THE ELEVATION MECHANISM AS THEY COULD BE TRAPPED WHEN THE TABLE DESCENDS NEVER STAND OR PUT YOUR HANDS INSIDE THE SECONDARY TABLE BASE IF THE TABLE IS NOT LOCKED INTO ONE OF ITS END POSITIONS WARNING DO NOT ATTEMPT TO MOVE THE TABLE TO ITS HOME POSITION WHEN IT IS IN THE PET SCAN POSITION OR TRAVELING BETWEEN THE PET AND CT SCAN POSITIONS THE TABLE MUST ONLY BE MOVED TO HOME POSIT...

Страница 77: ...omated Tables Figure 2 31 Secondary Base Drive Mechanism DANGER THE SECONDARY BASE DRIVE MECHANISM EXTENSION CABLES ARE ROUTED INSIDE A PLASTIC CONDUIT ON THE FLOOR UNDER THE TABLE MAKE SURE THAT THE CABLE IS PROPERLY INSERTED INTO THE FLOOR DUCT TO AVOID DAMAGE TO THE CABLE AND OR ELECTRICAL SHORT CIRCUIT BY SECONDARY BASE MOVEMENT OR COLLISION WITH OTHER ITEMS OF EQUIPMENT OR FURNITURE ...

Страница 78: ... PET LIMIT POSITIONS UNEXPECTED TABLE MOVEMENT MAY CAUSE DAMAGE TO EQUIPMENT OR INJURY TO PERSONNEL 2 9 3 CT PET Safety Labels Label Description Location Do Not Touch label Warns that hands may be pinched by the sliding cover if placed in this location On the top cover of the table secondary base High Voltage warning Warns that the power cord must be disconnected before opening the cover of the KB...

Страница 79: ... to the Advance PET Imaging System Description and Specification Direction 2103139 100 3 1 Introduction The Discovery LS product is the first combined CT PET system introduced by GE that combines diagnostic quality CT with premium PET This imaging system is based on the Advance PET and the LightSpeed Plus 4 Slice LightSpeed Ultra 8 Slice or LightSpeed 16 16 Slice CT GE systems Each system is CE ma...

Страница 80: ...eed slip ring to the SRU for patient image generator 3 2 3 Image Processor The patient images are recording by the IP Image Processor in the CT Host for conversion into television shades of gray displayed in the CRT monitor In order to reduce dose and still avoid artifacts a Collimator is used to track and follow the focal spot keeping a uniform x ray of the narrowest possible beam on the detector...

Страница 81: ...Table See Figure 3 10 3 3 1 Electronic Cabinet The Electronic Cabinet takes detector signals from the Gantry processes and transforms them and transmits them to the workstation The cabinet houses the chassis for two separate subsystems the MAGIC and SHARC 3 3 1 1 MAGIC MAGIC is a large part of the EDCAT Event Detection Coincidence And Timing subsystem and processes the event digital data produces ...

Страница 82: ...ry Motion Control Board Rack holds the motion controller for the Gantry tilt collimator motor and source loader robotics The radioactive sources are used for calibration and attenuation correction 3 4 Electrical Requirements The Discovery LS combined CT PET system has separate electrical requirements for the CT and PET These requirements are exactly the same requirements for the Advance PET and th...

Страница 83: ...onics that control the Gantry side Operator Control Panel and Gantry Display Panel Display CAN bus 3 6 PET Service Access The PET gantry is mounted on rollers and a drive system is employed to move it away from the CT gantry and provide at least 700 mm clearance for service access between the two gantries 3 7 CT PET LAN Local Area Network The Discovery LS LAN is a common CT PET network that integr...

Страница 84: ...0ohm Table BulkHead Gantry BulkHead 10 100BaseTx STC Artesyn CT Gantry CT Table 10BaseT Table BulkHead A2A7 Gantry BulkHead J11 J1 ETC ETC IF J1 LAN MAU Transceiver J3 LAN MAU Transceiver 9 5 01 Advance H2 LAN 9 5 01 DISCOVERY LS CT LAN Recons VME Work Station To Hospital DICOM network PCI Octane SGI Fast Ethernet 4 port LAN Swit h c Switch 10 100BaseTx 50ohm IP30 PCI To Hospital DICOM network 10b...

Страница 85: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Chapter 3 DLS System Functional Description Page 85 Figure 3 4 Integrated CT and PET Networks Option 1 ...

Страница 86: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 86 Chapter 3 DLS System Functional Description Figure 3 5 Integrated CT and PET Networks Option 2 ...

Страница 87: ...tion 10 100BaseTx PET Gantry BulkHead 10 100BaseT STC Artesyn Recon I F WS CT Gantry CT Working Station CT Table Table BulkHead A2A7 CT Gantry BulkHead 10 100BaseTx J11 ETC ETC IF J1 LAN MAU Transceiver J3 LAN MAU Transceiver Octane SGI 12 08 2002 Discovery LS Lan network Switch 50ohm Fast Ethernet 4 port LAN Swithc Hub Switch To Hospital DICOM network PCI PCI IP30 Up 10 100BaseT Mother Board 1 2 ...

Страница 88: ...CSI 68 pin Hub Data Terminal Server Cat5 100 base Tx Cat5 RS232 J18 J17 J16 XCVR RS232 RS232 RS232 DB 25 pin RS232 DB 25 pin Gantry Table 10 base2 coax 10 base2 Cat5 100 base Tx 100 base Tx 10 Bse Tx EDCAT SBC jwr 10Oct00 Workstation RS232 9U carrier PMC Wide Data RJ45 RJ45 P1 P2 P3 P1 P2 P3 RJ45 RJ45 DB 25 connector Media convertor XCVR 10 base2 AUI 15 pin female SHARC CABINET CONNECTIONS Bulkhea...

Страница 89: ...ers The covers provide an enclosure for the combined CT PET system They also are designed to provide the following features Protection of the operator and patient from moving parts and electrical hazards Adequate ventilation to remove heat from the gantries and maintain the internal temperature within the specified limits Support for the keypads Support for the intercom and breathing light display...

Страница 90: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 90 Chapter 3 DLS System Functional Description Figure 3 9 Electrical Block Diagram ...

Страница 91: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Chapter 3 DLS System Functional Description Page 91 Figure 3 10 Data Flow Control Block Diagram ...

Страница 92: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 92 Chapter 3 DLS System Functional Description Figure 3 11 Grounding Diagram ...

Страница 93: ...omputer Scan Monitor Image Monitor The CT system boot process starts immediately when the power is switched on As the two computers are connected via a serial cable once the PET computer is switched on it will boot as a follow on to the CT computer s start up procedure No user intervention is required for the entire process Boot up messages are displayed in sequence on the Scan Monitor Note If the...

Страница 94: ...subsystems Make sure that the Voltage Select Switch is set to the correct voltage and the Circuit Breaker CB12 is On both located in front of the cabinet 1 Turn On the main circuit breaker on the PDU breaker panel Figure 3 12 PDU Circuit Breaker Switches 2 Turn ON power to the individual peripherals 3 Turn ON the PET computer workstation Electronics Cabinet Table Gantry High Voltage Service Outlet...

Страница 95: ...e Scan Monitor is the CT prescription Click the PET icon on the Desktop Selection Area of the Image Monitor shown in Figure 3 13 to display the PET user interface on the Scan Monitor Note Clicking the Exam Rx icon on the Desktop Selection Area of the Image Monitor restores the CT user interface on the Scan Monitor Figure 3 13 Image Monitor Screen Showing PET and Exam Rx Icons on Desktop Selection ...

Страница 96: ... well as all firmware and subsystems 3 11 1 Shutting Down the PET CT System The Shutdown button is located in the Desktop Selection Area on the Image Monitor right monitor as shown in Figure 3 14 Figure 3 14 Desktop Selection Area Showing Shut Down Button To shut down the PET CT System 1 From the Desktop Selection Area on the Image Monitor right monitor click the pink Shutdown button Figure 3 14 A...

Страница 97: ...utton on the Sun computer Figure 3 16 PET Computer 3 11 2 Switching OFF Power to PET Subsystems and Peripherals In the current release the system shutdown procedure shuts down the CT subsystems only The PET subsystems shut down procedure is described below To switch OFF power to PET subsystems and peripherals 1 If necessary turn OFF the PET computer power switch 2 Turn off all the OWS peripherals ...

Страница 98: ...re 3 17 PDU Circuit Breaker Switches 3 11 3 Shutting Down the CT and PET Applications The applications can be shut down leaving the host computers operating systems as well as all firmware and subsystems running To do this use the Applications Shutdown accessed via the Service Desktop Figure 3 18 Desktop Selection Area Showing Service Button Click to access the Service Desktop ...

Страница 99: ...e CT and PET applications 1 From the Desktop Selection Area on the Image Monitor right monitor click the Shutdown button Figure 3 18 The Service Desktop displays 2 Click the Toolboxes Utilities button The Utilities Tools menu displays Figure 3 19 Service Desktop Showing Utilities Tools Menu 3 From the Utilities Tools menu click Application Shutdown ...

Страница 100: ...wing procedure 1 Click the Service icon on the desktop The Service Desktop displays Figure 3 20 CT Service Desktop 2 From the Service Desktop click the System Reset button The System Reset screen displays Figure 3 21 System Reset Screen 3 Reset any of the CT applications by pressing the appropriate button Each button represents a subsystem System Reset Button Click the appropriate button to reset ...

Страница 101: ...t password the service representative provided 2 Right click to display the menu 3 Select Tools to display its submenu 4 Select Terminal to open a terminal window and move the cursor over the window to activate it 5 When you type enter the following command type the subsystem acronym in place of the XXX To reboot a single subsystem Type enter terminate reboot XXX OR To reboot multiple subsystems t...

Страница 102: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 102 Chapter 3 DLS System Functional Description ...

Страница 103: ...on 2243314 100 for 4 slice SDAS Systems LightSpeed 3 X Service Information CD ROM Direction 2330551 200 for 4 and 8 slice MDAS Systems LightSpeed 4 X Service Information CD ROM Direction 2353846 200 for 6 slice MDAS Systems 4 1 Service Desktop To access the Service Desktop click the Service Desktop icon in the Desktop Selection Palette of the Image Monitor Figure 4 1 Service Desktop Icon The syste...

Страница 104: ...age analysis and scan analysis Calibration Applications Tools for mechanical electrical and imaging calibrations of the system Configuration Applications Save restore system state and configuration information Utilities Tools useful to the field engineer while installing or servicing a system Replacement Parts Repair Procedures Links to tools required when replacing major field replaceable units F...

Страница 105: ... be needed at the same time Use the mouse to make screen selections on the service desktop Typical mouse button functions Press the left button to select Press the center button to extend a selection Press the right button to access pop up menus 4 1 3 Desktop Management Change desktops by selecting the corresponding icon from the Desktop Selection Palette shown in Figure 4 1 or start a service too...

Страница 106: ...elect Systems Resets from the Service Desktop The reset applications selections include a Scan Resets and downloads all controllers in the gantry and table b Recon Resets the recon subsystem IG RIP and SDC boards c DAS COLL Resets the DAS control and collimator control board d Data Acquisition Resets the DAS control collimator control and DIP boards 2 Select Reset on the displayed screen 3 Select ...

Страница 107: ...ing System Service Manual Direction 2100507 and specifically to the enclosed Direction 46 322540 Section 2 Operator Console and Section 8 Optional Accessories 5 1 CT PET Console Functional Description The console is divided into three functional subsystems the CT Host SGI Octane the Scan Reconstruction Unit SRU and the PET Workstation SUN Ultra 60 The CT Host subsystem consists of the following ha...

Страница 108: ...ial communications between the PET Workstation and the CT Host are performed via a Null modem cable For network communications the PET Workstation is connected into a fast ethernet switch located inside the Console The location of the cosole components are shown in Figure 5 1 key components in Figure 5 2 and a connections diagram in Figure 5 3 These illustrations are for the H2 and may differ slig...

Страница 109: ... Expansion Module T o Laser Camera LightSpeed Plus Console Signal Paths Coaxial Cable SCSI 2 SCSI 1 J25 T rackball Service Laptop Data Cable Phone Line SCSI 1 10 Base T 10 100 Base Tx 50 Ohm BNC T erminator Banks 1 2 3 4 S1 S2 S3 S4 S5 S6 S7 S8 SDRAM Image Disk System Disk System Fan Drive Bay Assembly P ower Supply Fan Module System ID Module Light Module Headphone IP30 System Module PCI Ethernet...

Страница 110: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 110 Chapter 5 Console ...

Страница 111: ...dinal elevation is performed manually using the gantry mounted operator controls Table base positioning CT PET is performed manually using a separate hand control box or through the gantry mounted operator control for the manual table or the automated and extended table respectively The drives provide horizontal and vertical positioning of the patient Longitudinal motion of the cradle provides hor...

Страница 112: ...e the following FMIs before starting this upgrade FMI 13590 Turbo SHARC Upgrade FMI 13593 DLS 2002 Software Upgrade supports the automated table base CAUTION The DLS 2002 software FMI 13593 MUST be loaded and fully functional before you upgrade the table base Do NOT schedule this upgrade until the DLS 2002 software is loaded and verified The table will not function until you install FMI 13593 6 2 ...

Страница 113: ... light on the cradle with a piece of tape 6 Leave the alignment lights enabled 7 Drive the base to the PET position 8 Mark the PET location of the alignment light on the cradle with a piece of tape 9 Drive the base back to the CT position 10 Measure the distance between the pieces of tape on the cradle and record the actual distance below The mechanical installation team will use this measurement ...

Страница 114: ...the Secondary Base 2 Refer to Figure 6 2 Remove the window shade assembly from the front of the table base a Use a 4 mm Allen wrench to remove the two screws that fasten the window shade roll up cover to the front of the table secondary base b Remove the hardware that fastens the window shade roll up cover to the bulkhead bracket Leave the bulkhead bracket in place for now c Follow local guideline...

Страница 115: ...the interlock jumper to the cover off position Figure 6 3 Remove the Table Side Covers 5 Remove the right table side covers from the elevator cover scissor section of the table a Unfasten the two screws and ground connection from two covers on the right side of the table and one cover on the left side of the table Note Wait until Section 6 2 5 4 after the pedal assembly is removed to remove the co...

Страница 116: ...Use a 1 8 inch Allen wrench to remove the two screws and ground braid that fasten each cover into place c Remove the elevator covers and set aside Figure 6 4 Remove the Side Elevator Covers Remove side covers to improve access Each side cover has a ground strap Use a 1 8 in Allen wrench to unfasten Table Scissor Section Elevator ...

Страница 117: ...side Figure 6 5 Remove the ETC Cover 7 Refer to Figure 6 6 Remove the middle support bar and bracket for the ETC Cover a Use a 1 8 inch Allen wrench to remove the three M4 flat head screws that fasten the middle bar into place b Use a 5 mm Allen wrench to remove the two M6 socket head screws that fasten the bracket to ETC chassis c Follow local guidelines to discard or recycle the bar and bracket ...

Страница 118: ...vator Tilt Drive Assembly 6 2 4 2 Remove the Base Cover Brackets Refer to Figure 6 8 Remove the four cover brackets from the ETC chassis 1 Use a 5 mm Allen wrench to remove the two M6 socket head cap screws that fasten each of the cover brackets total of 4 one in each corner to the ETC chassis 2 Follow local guidelines to recycle or discard the brackets Figure 6 8 Remove Cover Brackets from ETC ch...

Страница 119: ...acket into place Bracket is silk screened LOWER LIMIT SWITCH and LOWER CHAR POINT b Discard the bracket Figure 6 9 Characterization Calibration Bracket 4 If necessary modify the Calibration Bar a Refer to Figure 6 10 Locate the Calibration Bar fastened to the right side of the table casting beneath the ETC assembly b Fasten the bar back into place with the original M6 hardware Figure 6 10 Calibrat...

Страница 120: ...on 6 2 4 3 d Use a 5 mm Allen wrench to remove the two M6 socket head cap screws that fasten the calibration bar into place e Refer to Figure 6 11 Trim the tab flush with the left side of the Calibration Bar Recommended If a vice is not available use one of the C clamps to clamp the Calibration Bar to the end of a secondary base side rail Use a hacksaw to cut the tab Figure 6 11 Remove the Tab fro...

Страница 121: ... the linear rail The front stop is located about midpoint and the rear stop is located near the clutch motor assembly If the base has Front and Rear Stops remove the Front stop Front Stop but no Rear Stop move the Front stop to the rear location No Stops install a new Rear Stop from the kit Figure 6 12 Front and Rear Mechanical Stops 2 To remove the Front stop use a 6 mm Allen wrench to remove the...

Страница 122: ...5 Remove the Manual Control Hardware Follow the instructions in this section to remove the hardware and cables used to control the secondary base of the ME1 table 6 2 5 1 Remove the KB Box The KB Box provides the electronics to drive the secondary base between the PET and CT positions The KB box controls the clutch motor assembly mounted directly beneath it Follow the instructions in this section ...

Страница 123: ...s needed to remove the three motor clutch cables and ground wire from the table 3 Follow the cables to the front of the table and disconnect them from the corresponding gantry cables Remove the ground wire from the ground bus bar 4 Follow local guidelines to discard the cables and ground wire Figure 6 14 KB Box and Clutch Motor Assembly 6 2 5 3 Unfasten and Remove the KB Box 1 Refer to Figure 6 14...

Страница 124: ...ary move the table to access the front switch rail screws 6 2 5 5 Remove the PET and CT Position Switches and Switch Rail Locate the CT and PET position limit switches mounted to the switch rail and attached to the left side of the secondary base when facing the gantry Move the table as needed to access the Position switch hardware and components The cables may be cut and the switches and switch r...

Страница 125: ... 7 b Follow local guidelines to discard or recycle the PET and CT limit switches Figure 6 18 Cut Wires to Remove Switches and Cables 6 2 5 6 Remove the Switch Rail 1 Use a 5 mm Allen wrench to remove the two M6 socket head cap screws that fasten the front of the switch rail very heavy to the table base 2 Use a 4 mm Allen wrench to remove the two flat head screws that fasten the rear of the switch ...

Страница 126: ... PET and CT limit switch cables Note For best results tilt the ETC mounting tray to access the connectors Use a flat blade screwdriver to unfasten the slotted captive screw located bottom center 1 Cut the tie wraps and remove the CT PET Positions cable from the table 2 Refer to Figure 6 19 Follow the cables back to the ETC Board I F J8 connection 3 Disconnect the 15 pin D Type Connector from J8 of...

Страница 127: ...e bulkhead 1 Locate the cables attached to the J13 at the rear of the Table bulkhead Figure 6 42 on page 145 shows the Table Bulkhead location 2 Remove the cable from J13 on the front of the Table bulkhead 3 Remove the cable from J13 on the rear of the Table bulkhead a Cut tie wraps as needed to remove this cable from the table bundle b Follow the cable to the ETC I F Board See Figure 6 19 for con...

Страница 128: ...efer to Figure 6 21 Locate and detach the 25 pin D Type connector and pigtail from J7 of the ETC I F Board If J7 cannot be located on the ETC I F Board see Figure 6 19 on page 126 2 Follow the cable to the rear connection of J12 of the Table bulkhead Cut tie wraps and cable as needed to remove P N 2309066 and the pigtail from the table 3 Temporarily disconnect the cable from J12 on the front of th...

Страница 129: ...ndary base To disassemble the secondary base drive belt 1 Refer to Figure 6 22 Use two strips of masking tape or some white correction fluid to mark the edges of the belt connector before disassembling the belt Figure 6 22 Mark the Secondary Base Drive Belt 2 Refer to Figure 6 23 Use a 4 mm Allen wrench to remove the four socket head cap screws from the fastener plate and set aside 3 Remove the fa...

Страница 130: ...t 2 Refer to Figure 6 24 Use an 8 mm Allen wrench to loosely attach the Side Pieces P N 2356109 to the Spreader Bar P N 2356111 Figure 6 24 Secondary Base Spreader Bar with Side Pieces Quantity Part Number Description 1 2356111 Spreader Bar 2 2356109 Side Pieces 4 46 328417P25 10 mm x 35 mm Socket Head Cap Screw 4 46 328430P4 10 mm Flat Washer 4 46 328432P4 10 mm Lock Washer Do not tighten hardwar...

Страница 131: ...ails Do not remove any table anchors 4 Tighten the Spreader Bar bolts Figure 6 25 Secondary Base Spreader Bar Clamped into Place 5 Refer to Figure 6 26 Wedge a piece of wood under the clutch motor casting to support it while removing the nine bolts that fasten it to the secondary base Figure 6 26 Support Casting with Wood 6 If necessary remove the floor mounted table lateral alignment assembly ...

Страница 132: ...ce until the new motor clutch assembly is installed Figure 6 27 Remove Old Motor Clutch Assembly from Table Base 6 2 6 Install the Automated Base Hardware 6 2 6 1 Drill and Tap the Right Secondary Base Rail Five different types of side rails currently exist in the field The first step is to determine which version is present Regardless of the secondary base rail version at least one hole must be d...

Страница 133: ... Plug Drill four PET holes and nine CT holes Five rail access holes Revision 1 or 2 table needs the PET Plug Drill four PET holes and six CT holes Four rail access holes For Revision 3 table drill one CT hole May need to drill four PET holes if the distance between the CT scan plane and PET scan plane falls outside the specified range Figure 6 28 Determine the Right Secondary Base Rail Revision Re...

Страница 134: ...rill Template to the rail Refer to Figure 6 29 and label the CT Drill Template holes Figure 6 29 CT Drill Template Hole Labels Viewed from the Rail Exterior 1 Refer to Figure 6 30 All table rail types have pre drilled and partially tapped A holes a Locate the two A holes between 395 and 565 mm from the rear edge of the rail b Use an M4 tap to finish the holes Tap from the interior of the table out...

Страница 135: ...n the drill penetrates the rail 3 Refer to Figure 6 29 on page 134 The table rail revision determines the hole pattern Revision 0 Drill five B holes and four C holes Revision 1 and 2 Drill four C holes the D hole and the E hole Revision 3 Drill the E hole CAUTION To prevent injury wear eye protection while drilling 4 Tape a piece of paper or paper towel to the interior of the rail to prevent metal...

Страница 136: ...low continue to Section 6 2 6 10 on page 142 Side Rail Revision Distance Between Scan Planes Follow procedure in the following Sections 3 675mm 14 mm N A Proceed to 6 2 6 10 on page 142 3 651 to 661 mm 6 2 6 6 on page 139 then 6 2 6 8 on page 141 3 641 to 651 mm 6 2 6 6 on page 139 then 6 2 6 9 on page 141 2 675mm 14 mm 6 2 6 5 on page 137 2 651 to 661mm 6 2 6 5 on page 137 then 6 2 6 7 on page 14...

Страница 137: ... the PET Drill Template into the fifth access hole counting from the gantry end of the right secondary base rail 3 Rest the edges of the raised portion of the template against the bottom and front edge gantry side of the access hole Figure 6 32 PET Drill Template Part Number Description Quantity 2355225 PET Drill Template 1 2355559 PET Drill Template Clamp Block 2 46 328417P19 M6 x 50 mm Socket He...

Страница 138: ... PET Drill Template Exterior View CAUTION To prevent injury wear eye protection while drilling 6 Tape a piece of paper or paper towel to the interior of the rail to prevent the debris from collecting on the bearing rail 7 Use a 5 5 mm bit to drill the template holes Do not tap these holes Recommended Use cutting oil when drilling Keep the drill perpendicular to the rail while drilling Stop frequen...

Страница 139: ...58 to the existing PET detent holes in the Revision 3 secondary base rail 1 Refer to Figure 6 34 Fasten the PET detent offset template directly to the rail To locate the PET detent holes refer to Figure 6 80 on page 168 2 Use a 4 mm Allen wrench to fasten the template to the rail with three M5 X 35 mm socket head cap screws P N 46 312577P30 3 Fasten the M5 screws through the holes closest to the g...

Страница 140: ...ure 6 35 Follow the instructions on page 169 to install the PET plug P N 2342038 Figure 6 35 Fasten PET Detent Offset Template to Revision 0 1 or 2 Rail 2 Use a 4 mm Allen wrench to fasten the offset template to the PET plug with the following 3 Refer to Figure 6 36 Insert the M5 screw through the template and slide the six M5 flat washers onto the threads 4 Fasten the M5 screws through the holes ...

Страница 141: ... tap to finish the holes Tap from the interior outward 5 Vacuum all debris from the area Figure 6 37 10 mm Offset Drill Holes 6 2 6 9 Drill a New Set of PET Detent Holes 20 mm Closer to the CT Detent Follow the instructions in this section if the distance between PET and CT scan planes falls between 641 and 651mm 1 Refer to Figure 6 37 and Figure 6 38 If necessary designate the drill holes with a ...

Страница 142: ... at least one of the pulleys is loose on the shaft when installing the motor clutch assembly Use a 1 5 mm Allen wrench to loosen the set screws Figure 6 39 Support the Clutch Motor Assembly with Wood 1 Reuse the bolts removed during the Section 6 2 5 10 procedure 2 Set the clutch motor casting on a piece of wood and slide it into place These holes shift the PET detent 20 mm closer to the CT detent...

Страница 143: ...Early ME1 tables do not have a bulkhead so the kit ships with a new table bulkhead If the system already has a bulkhead do not replace it 1 If necessary locate and remove the following hardware from the upgrade kit 2 Refer to Figure 6 40 Use a 5 mm Allen wrench to fasten the table bulkhead in place with two M6 socket head cap screws flats and lock washers Note For best results temporarily remove t...

Страница 144: ...ble harness cable to the Elevator Tilt Drive PCB Do not tie wrap at this time 4 Refer to Figure 6 41 Fasten the cable connector to J5 on the driver assembly For best results kneel on the right side of the table and reach through the scissor assembly and across to the left side of the table to attach the J5 cable Reach in the direction shown in the illustration 5 Refer to Figure 6 41 Pull the cable...

Страница 145: ...er Unit 1 Insert the J12 connector of Cable P N 2340390 into the rear of the Table bulkhead 2 Attach the Clutch R Cable labeled P N 2309059 0 to the J12 connector on the front of the Table bulkhead 3 Refer to Figure 6 42 Route the J221 connector of P N 2340390 to the Clutch Driver Unit location on the right side of the table Figure 6 42 Rear View of Table Bulkhead To J221 of Clutch Driver Unit not...

Страница 146: ...AC Figure 6 43 Install Clutch Driver Unit 1 Use a 5 mm Allen wrench to fasten the Clutch Driver Unit into place with the following hardware Two M6 x 16 mm screws P N 46 214695P34 Two M6 lock washers P N 2315373 4 Two M6 flat washers P N 2109878 3 Note The J18 and J221 cable connectors are mislabeled on the Clutch Driver Unit Refer to Figure 6 44 Use a permanent marker to cross out the original lab...

Страница 147: ...tors so the original wires re plug in place 1 Refer to Figure 6 45 Remove the wires from A1 and A2 of the ETC ASM side of the filter 2 Refer to Figure 6 44 Fasten Cable P N 2338088 to J200 of the Clutch Driver Unit 3 Route the other end of P N 2338088 to the AC Filters Figure 6 45 Filter Before Upgrade 4 Refer to Figure 6 46 Plug the white connector into the right side of the filter and the black ...

Страница 148: ...rings may be cut and spread to fit the hardware For best results replace the terminal with a 10 ring 1 Refer to Figure 6 44 Attach one end of ground wire P N 2338084 to the ground stud on the Clutch Driver Box 2 Refer to Figure 6 48 Route the ground from the main table harness to the ground bar on the ETC Power Supply Figure 6 48 Attach Ground Wire to Ground Bar CAUTION Route the ground away from ...

Страница 149: ... F Board P N 2229871 from the upgrade kit 2 Unfasten the cables connected to the ETC I F Board 3 Use a flat blade screwdriver to unfasten the three screws that hold the board in place 4 Remove the new ETC I F Board from its static protection bag and fasten it into place 5 Place the old ETC I F Board into the static protection bag and follow local guidelines to return the board to GE 6 Fasten the E...

Страница 150: ...o the ETC board Figure 6 50 Route P N 2338086 Under ETC Board 2 Route the end with the 3 pin Molex connector to the Clutch Driver Unit 3 Refer to Figure 6 44 Attach the 3 pin Molex to the connector previously labeled J18 on the face of the Clutch Driver Unit NOTICE If the Clutch Driver Unit looks like the one shown in Figure 6 44 the connector on the Clutch Driver Unit is mislabeled J18 Attach the...

Страница 151: ...k insulation from the connector The full length of insulation may interfere with the ETC Cover Figure 6 52 Trim Insulation from P N 2350570 Connector 3 Refer to Figure 6 53 Carefully route the sensor across the ETC assembly and through the slot in the side bracket Figure 6 53 Route Optical Sensor Across ETC Board 4 Fasten the D Type connector to J8 of the ETC I F Board 5 Locate the old J8 connecto...

Страница 152: ...ld ETC I F J8 Connector 6 2 6 20 Install the Base Driver Enable Ribbon Cable P N 2340386 NOTICE Ribbon Cable P N 2340386 is very fragile 1 Refer to Figure 6 55 Disconnect the following cables from the ETC and ETC I F boards a Temporarily disconnect J10 from the main ETC Board to provide better access to the ribbon cable in J4 b Disconnect Adapter P N 2271251 from ETC I F J4 c Disconnect signal har...

Страница 153: ...6 56 Attach the ETC I F J4 side of the Base Drive Enable Cable P N 2340386 to the ETC I F J4 connector Figure 6 56 Attach New Ribbon Cable to ETC I F J4 3 Refer to Figure 6 57 Connect the ETC I F J24 side of the Base Drive Enable Cable to connector J24 Figure 6 57 Connect New Cable to J24 Connect new cable to J4 Attach to J24 ...

Страница 154: ...e new Base Drive Enable ribbon cable P N 2340386 Figure 6 58 Connect New Ribbon Cable to Existing Ribbon Cable 5 Refer to Figure 6 59 Connect the signal harness removed earlier from ETC I F J24 to the new J24 ribbon cable Figure 6 59 Connect Existing Signal Harness to New Ribbon Cable in J24 6 Refer to Figure 6 55 Reconnect J10 to its ETC board connector Reattach existing cable to new cable New Ca...

Страница 155: ... CMD Adapter fastened onto the ETC I F Board It is easier to attach the existing cable to the back of the CMD Adaptor before attaching the adaptor to the ETC I F Board Figure 6 60 CMD Connector P N 2304737 1 Refer to Figure 6 61 Disconnect Signal Harness P N 2271256 labeled I F J7 from J7 on the ETC I F Board Figure 6 61 ETC Board and ETC I F 2 Connect this end labeled 1 Connect existing 3 Connect...

Страница 156: ...dapter J1 and tighten the screws Figure 6 62 Attach Existing Signal Harness to J1 on CMD Adapter 3 Refer to Figure 6 63 Insert the ETC I F J7 connector of the CMD Adapter into J7 of the ETC I F Board and tighten the screws Figure 6 63 Attach the CMD Adaptor to ETC I F J7 Attach existing J7 cable to CMD Adapter before fastening the CMD Adaptor in place Fasten CMD Adaptor to J7 ...

Страница 157: ...are from the upgrade kit 1 Use a 3 mm Allen wrench to fasten the cover flange to the right secondary base side rail with eight 8 sets of M4 hardware If necessary finish tapping the mounting holes on both sides of the base 2 Use a 3 mm Allen wrench to fasten the cover flange to the left secondary base side rail with five sets of M4 hardware as shown in Figure 6 65 3 Refer to Figure 6 65 Attach thre...

Страница 158: ... To prevent potential interference during table base motion ALWAYS orient the mounts as shown in Figure 6 65 ALWAYS remove the protective backing and use the adhesive base to fasten the mounts to the left rail flange Figure 6 65 Left Cover Flange with Adhesive Tie Wrap Mounts Orient the mount for vertical tie wraps ...

Страница 159: ...nt of the Revision 3 table Note If the rail does not have pre drilled mounting holes Revision 0 1 and 2 tables use the adhesive mounts without the M5 screws Figure 6 66 Attach Adhesive Mounts to Front of Table Rail 6 2 6 23 Attach Clutch Motor Cables 1 Locate and remove the following cables from the upgrade kit 2 Refer to Figure 6 67 Attach the cables to the Clutch Motor bulkhead bracket The bulkh...

Страница 160: ...re 6 67 Attach the J3 ground and P N 23237720 to the bulkhead with the following hardware from the kit 1 Refer to Figure 6 68 Tie wrap the cables and ground wire into place along the secondary base rail then route them under the front of the table to make the connections to the original motor clutch cables in the gantry See page 123 for the clutch motor cable removal instructions Figure 6 68 Route...

Страница 161: ... located in the gantry harness The cables are clearly marked but a flashlight may be needed to read the labels Figure 6 69 Base Potentiometer E Cable P N 2323729 6 2 6 24 Reassemble the Secondary Base Drive Belt 1 Refer to Figure 6 70 Use a 1 5 mm Allen wrench to loosen the four set screws two each on the potentiometer pulley and motor clutch pulley This prevents damage to the potentiometer when i...

Страница 162: ...ional Loosen the idler pulley to release tension on the belt a Refer to Figure 6 72 Use a 5 mm Allen wrench to remove the top two and bottom left socket head cap screws that fasten the drive belt idler pulley to the side rail b Loosen the lower right screw but leave it in place Figure 6 72 Drive Belt Idler Pulley Clamp belt into place over the fastener plate shown with clamp hardware Four Socket H...

Страница 163: ...d the corrugated side against the teeth on the belt 5 Use a 4 mm Allen wrench to fasten the clamp into place with four sets of belt clamp hardware Figure 6 73 Reassemble the Drive Belt 3 Refer to Figure 6 72 If the Drive Belt Idler Pulley was loosened push the pulley into its perpendicular position with a large screwdriver reinsert the hardware and use a 5 mm Allen wrench to tighten the pulley scr...

Страница 164: ...Section 6 2 4 3 2 Refer to Figure 6 74 If necessary a Use a 1 5 mm Allen wrench to loosen the two set screws on the Belt Drive Pulley b Use a 1 5 mm Allen wrench to tighten the two set screws on the Potentiometer Pulley Figure 6 74 Pot Pulley and Clutch Motor Pulley Set Screws 3 Use a screwdriver to turn the slotted end of the pulley shaft Face the pulley and gently rotate the pulley clockwise to ...

Страница 165: ...gure 6 75 Linear Bearing Block 1 Locate and remove the following parts from the upgrade kit 2 Refer to Figure 6 76 Try to fasten the M6 and M8 hardware to the linear block If the M6 screw fits use mounting plate P N 2355095 and M6 hardware If the M8 screw fits use the P N 2352575 mounting plate and M8 hardware Figure 6 76 Determine Hardware Size Part Number Description Quantity 2355095 6 mm Plate ...

Страница 166: ...responding hardware 6 2 6 27 Install the PET CT Position Latch Assembly The CT PET Position Latch Assembly contains the optical sensor that detects the PET and CT flags the latching mechanism that holds the table in the PET and CT position and a solenoid latch that holds the table in the CT patient load position 1 Refer to Figure 6 78 Figure 6 78 CT PET Position Latch Assembly P N 2340721 To Clutc...

Страница 167: ...t washers 5 Refer to Figure 6 78 Fasten the terminal ends of Cable P N 2338086 to the terminal block Cable P N 2338086 provides AC power to the solenoid It does not matter which terminal the wires are fastened to even though they are labeled If necessary terminate the two white wires and fasten them to the terminal strip as shown in Figure 6 78 Part Number Description Quantity 2340721 GS Positioni...

Страница 168: ...e inserted behind the detents This section contains the instructions to install the CT and PET detents including the side rail access plugs Refer to Figure 6 80 If necessary measure the distance from the rear edge of the right side rail to locate the detent mounting holes Figure 6 80 CT and PET Detent Flag Assembly Locations PET Detent Location CT Detent Location 1 261 mm from end of secondary 598...

Страница 169: ...ure 6 82 Use the following hardware to install the PET Plug into the hole in the rail a Insert the plug from the inside of the table b Fasten the nuts and washers to the rail exterior and screws to the rail interior Figure 6 82 PET Plug Shown from Table Interior Part Number Description Quantity 46 312577P28 M5 x 25 mm Socket Head Cap Screw 4 2236649 M5 Flat Washer 4 46 328432P8 M5 Lock Washer 4 46...

Страница 170: ...are to install the CT Plug into the seventh hole in the rail a Refer to Figure 6 84 Insert the plug from the inside of the table b Fasten the nuts and washers to the rail exterior and screws to the rail interior Figure 6 84 CT Plug Part Number Description Quantity 2342039 CT Position Plug 1 46 312577P28 M5 x 25 mm Socket Head Cap Screw 5 2236649 M5 Flat Washer 5 46 328432P8 M5 Lock Washer 5 46 328...

Страница 171: ...nt to the CT plug in the seventh access hole Revision 1 or 2 Table Rail Fasten the nuts and washers to the rail exterior and screws to the rail interior Use the following kit hardware Revision 3 Table Rail Fasten the nut and washers to the rail exterior and screws to the rail interior Use the following kit hardware Part Number Description Quantity 46 312577P27 M5 x 20 mm Socket Head Cap Screw 2 22...

Страница 172: ...he slots when fastening the PET Detent Flag assembly to the rail Refer to Figure 6 86 The PET detent has slots to provide Z Axis adjustment Figure 6 86 PET Detent Flag Assembly 1 Use a 4 mm Allen wrench to temporarily fasten the PET detent to the right table rail All table rail revisions Use three M5 x 12 mm Bolts P N 46 214695P23 to fasten the PET detent to the right table rail Center the hardwar...

Страница 173: ... entered on page 113 d Tighten the detent hardware Figure 6 87 Adjust PET Detent for Recorded Distance Between Scan Planes 6 2 6 33 Assemble and Install PET Detent Adjuster 1 Locate and remove the following parts from the upgrade kit 2 Refer to Figure 6 88 Use the illustration as a guide to assemble the PET detent adjuster Figure 6 88 PET Detent Adjuster P N 2332092 Slightly loosen detent hardware...

Страница 174: ...Place 6 2 6 34 Shim the PET Detent Assembly During Section 6 2 6 28 the PET and CT Detent Flag assemblies were temporarily installed Follow the instructions in this section to determine whether to shim the detent assemblies to accommodate for differences in the relationship between the linear bearing rail and the secondary side rail 1 Locate and remove the following hardware from the upgrade kit P...

Страница 175: ...nst the latch pin as shown in the Figure 6 90 detail Figure 6 90 Check Relationship between Roller Arm and Pin Out of Detent 3 Refer to Figure 6 91 Push the table onto a detent assembly ramp The roller arm moves away from the latch pin Figure 6 91 Check the Relationship between the Roller Arm and Pin on the Detent The roller arm rests against the latch pin when the CT PET Position latch is out of ...

Страница 176: ...T Add one shim and refasten the detent in place with the M5 22 mm hardware Add only one shim at a time during this procedure d Repeat Step 2 Step 3 and Step 4 If the roller arm still rests against the pin add another shim and repeat the process e If the roller arm no longer rests against the latch pin when the roller is in the detent count the shims added and fasten the same number to the remainin...

Страница 177: ...or into place with both screws Figure 6 93 Fasten Optical Sensor with One Screw 1 Refer to Figure 6 93 Use a 3 mm Allen wrench to attach the optical sensor to the CT PET Position Latch with a single M3 x 10 mm screw P N 46 214695P7 2 Refer to Figure 6 93 Pivot the optical sensor away from the table rail 3 Slowly move the table into the PET detent 4 Refer to Figure 6 94 Carefully swing the optical ...

Страница 178: ...cal sensor back into place and check the clearance between the sensor and the surfaces of the CT flag plate Refer to Figure 6 94 and Figure 6 95 If the optical sensor touches the top or bottom surface of the flag plate bend the optical sensor bracket to move the sensor away from the surface of the flag plate 9 If the optical sensor bracket was adjusted at both detents repeat Step 2 through Step 9 ...

Страница 179: ...Mark the Flag 2 Slowly and carefully move the table to the PET detent 3 Refer to Figure 6 97 Use a 2 5 mm Allen wrench to slightly loosen the two socket head cap screws that fasten the flag plate to the detent 4 Refer to Figure 6 97 Using a 2 5 mm Allen wrench turn the adjusting screw to shift the flag plate to center the flag using the marks to the optical sensor Figure 6 97 Center the Flag 5 Slo...

Страница 180: ...uld arrive with the set screw adjusted so the bar is perpendicular to the bracket If necessary use a 1 5mm allen wrench to adjust the latch bar If available apply Loctite 242 to the set screw NOTICE The latch pin limits the amount of adjustment to the set screw For best results insert the latch pin before adjusting the set screw Figure 6 99 Adjust the Set Screw for 90 Degrees NOTICE The Table Rail...

Страница 181: ...n Service Latch to Table Rail with Three Sets of M5 Hardware Part Number Description Quantity Table Revision 46 214695P23 M5 x 12 mm Socket Head Cap Screw 3 If Revision 3 46 328432P8 M5 Lock Washer 3 If Revision 0 3 46 312577P28 M5 x 25 mm Socket Head Cap Screw 3 If Revision 0 2 2236649 M5 Flat Washer 3 If Revision 0 2 46 328425P11 M5 Nut 3 If Revision 0 2 Use a 4 mm allen wrench to fasten the ser...

Страница 182: ...efer to Figure 6 101 and Figure 6 102 Use a 3 mm Allen wrench to adjust the screw to lower the solenoid latch arm and create a gap of about 3 to 3 5 mm between the bottom of the detent and the bottom of the Table Latch Arm The latch should not allow forward or backward table movement at this time Figure 6 101 Adjust CT Position Assembly to Clear Table Latch Arm Figure 6 102 Correctly Adjusted Posi...

Страница 183: ...tch by 3 to 3 5 mm c Using a 2 5 mm Allen wrench tighten the solenoid hardware Figure 6 103 Reposition the Solenoid 4 Check the latch clearances in the Solenoid Energized position a Refer to Figure 6 104 Manually depress the solenoid latch arm b Slide the table forward and check the clearance c Use a 1 5 mm Allen wrench to ensure the edge of the latch arm now clears the Table Latch Bar by 1 5 mm F...

Страница 184: ...tain spring tension until both screws are tightened 8 Refer to Figure 6 104 Depress and release solenoid latch arm with your fingers Make sure the latch arm returns to the initial upward position 9 Move the table forward and back into position to verify the adjustment The arm should clear the service latch CAUTION To prevent damage to the CT PET Position assembly leave the Latch in the service rai...

Страница 185: ... a 5 mm Allen wrench to fasten the characterization calibration bracket into place with the M6 hardware The bracket is located near the fans in the right front corner of the ETC chassis The new characterization bracket is silk screened LOWER LIMIT SWITCH LOWER CHAR POINT ADD 100 mm TO ALL MEASUREMENTS DUE TO BRACKET OFFSET Figure 6 107 New Characterization Bracket Part Number Description Quantity ...

Страница 186: ... of the four top cover brackets to the ETC Assembly Figure 6 108 Install Three Top Cover Brackets 2 Locate and remove the following hardware from the upgrade kit Part Number Description Quantity 2333042 Right Front Bracket 1 2333041 Left Front and Rear Brackets 2 46 328417P13 M6 x 16 mm Screw 6 2109878 3 M6 Flat Washer 6 2315373 4 M6 Lock Washer 6 Left Rear Bracket Left Front Bracket Right Front B...

Страница 187: ...table harness as needed 2 Dress and tie wrap the cables in the table retractor area as needed 3 Dress twist and tuck the CT PET Position Latch cables to keep them out of the path of travel 4 Close the ETC Assembly a Make sure all connections were made to the ETC and ETC I F b Fasten any cable connector hardware c Make sure all cables between the ETC and CT PET Position Latch are secure and tie wra...

Страница 188: ...f to set the flags 5 Use a 1 8 inch Allen wrench to fasten the braided ground and the two screws that fasten the right and left covers to the table elevator scissor section 6 Move the table jumpers to the storage position then reattach the Table Side Covers 7 Check the Table Latch one more time Make sure it is pinned in the vertical service position 6 2 6 43 Install the Cosmetic Cradle Caps 1 Refe...

Страница 189: ...st results sort and inventory the hardware before you start to attach the brackets to the table base 6 2 7 1 Automated Table Cover Components Refer to Figure 6 111 The upgrade kit contains the following secondary base covers Figure 6 111 Automated Table Covers No Description of Table Cover Section Part Number A Back Cap 2320164 B Top Cap Short 2320161 C Left Side Cover 2320163 D Right Side Cover 2...

Страница 190: ...he roller canister d Attach canister brackets to the head end of the secondary base e Attach the drip trough to the roller canister assembly f Attach the canister to the secondary base g Install the idler roller and align it to the roller cover guides 2 Fasten the side skirts to the secondary base a Attach left and right side covers to the secondary base b Attach front left and right side covers t...

Страница 191: ... cover from retracting into the canister 6 2 7 4 Attach the Roller Cover Guides to the Secondary Base Side Rails Refer to Figure 6 113 The cover guide consists of two rails The wide rail provides the top cover guide and the narrow rail provides the bottom guide Follow the procedure in this section to align the holes and fasten the rails to the secondary base with M4 hardware Figure 6 113 Assemble ...

Страница 192: ...ach designated slot on each side rail Adjust the guides from side to side to center the flat head screws in the slots 5 Use a 2 5 mm Allen wrench and a 7 mm wrench to tighten the hardware Figure 6 114 Secondary Base Side Rail Slot Locations 6 Refer to Figure 6 115 Fasten the cover guide to the secondary rail with an M4 flat washer lock washer and hex nut NOTICE Do NOT overtighten the hex nut to av...

Страница 193: ...t so when the hardware is loosened to adjust the cover bracket the retractor does not fall Try using two 10 mm Allen wrenches to support the cable retractor bracket 2 Use an 8 mm Allen wrench to remove the M10 hardware that fastens the table retractor bracket to the table base Figure 6 116 Install the Roller Cover Bracket 3 Refer to Figure 6 117 and Figure 6 118 Position the cover bracket hardware...

Страница 194: ...he table carefully push the table base between the CT and PET positions while watching the cable retractor retractor plate and front table bracket crossbeam Make sure the table bracket does NOT drag on the floor or make contact with the front of the table Readjust as necessary to clear the floor and table Figure 6 118 Align Cover Bracket with Cover Guide 6 2 7 6 Reposition the Ground Bus Bar If ne...

Страница 195: ...r brackets are mirror images 2 Refer to Figure 6 120 Position the L shaped canister bracket so the free end points away from the gantry 3 Use a 5 mm Allen wrench to attach the Canister Bracket Assemblies to the front end of the table with four M10 x 20 flat head beveled screws P N 2103580P22 Figure 6 120 Canister Bracket Assembly with and without Canister Bracket assembly ships with bottom bolt th...

Страница 196: ...or 2 Orient the drip tray at the head end of the table so its sides angle toward the foot end of the table when fastening the canister assembly into place 3 Use a 3 mm Allen wrench to fasten the drip tray to the roller cover canister with two sets of the following M5 hardware Two M5 x 10 mm socket head cap screws SHCS P N 46 312577P4 Two M5 lock washers P N 46 328432P8 Two M5 flat washers P N 2236...

Страница 197: ...6 328432P3 1 Refer to Figure 6 121 Flip the canister assembly forward so the drip tray and cover face the ceiling Carefully lower the canister assembly between the gantry and table 2 Refer to Figure 6 120 Each canister bracket assembly arrives with two of the M6 screws fastened through the bottom of the bracket Slide the lower set of canister holes over the screws to support the weight while align...

Страница 198: ... Idler Roller P N 2331418 into Slot in Table Base 3 Refer to Figure 6 123 Use a 3 mm Allen wrench to thread an M4 x 20 socket head cap screw into the holes at the front of the secondary base rails Do not tighten the screws until the idler roller is aligned to the cover guides 4 Once in place check that the idler roller rotates freely when spinning it by hand Refer to Figure 6 124 If necessary loos...

Страница 199: ...top surface of the lower roller cover guide c Use a 3 mm Allen wrench to tighten the M4 x 20 mm screw clamping the idler roller into position in the slot d Repeat the adjustment on the opposite side of the roller Figure 6 125 Align Idler Roller to Roller Cover Guides 6 Refer to Figure 6 126 Insert the blade of a screwdriver through center hole in the roller cover so the cover will not retract all ...

Страница 200: ...er cover clearances Readjust the idler roller and cover bracket if the cover fails to meet the following conditions Cover rests on the lower guide Cover does not rub against the top guide when pushing the table between the CT and PET detents An even gap exists between the top guide and the cover 10 If the cover appears off center or it rubs one of the rails readjust the cover canister Figure 6 127...

Страница 201: ...k cap into place until the rear top covers are installed 1 Locate and remove the following side covers from the kit Right Side Cover P N 2320162 Left Side Cover P N 2320163 2 Refer to Figure 6 128 and Figure 6 129 Insert the cover guide pins into the designated slots on the secondary base side rail and slide the table back and forth to gain access to all the through holes The front pin fits into s...

Страница 202: ...ide covers into place with the following M4 hardware M4 x 20 mm socket head cap screw SHCS P N 46 328417P6 M4 lock washer P N 46 328432P2 M4 flat washer P N 46 328430P2 4 Use six sets to fasten the left cover into place Use five sets to fasten the right cover into place Fasten the hardware until just snug Do not over torque Figure 6 129 Side Covers Exploded View 5 Attach the Front Left and Right S...

Страница 203: ...n with the roller cover in place 6 Use a 4 mm Allen wrench to reattach the roller cover to the cover bracket 6 2 7 12 Attach the Interface Cover Between the DLS Table and Gantry Refer to Figure 6 131 Remove Interface Cover P N 2331112 from the upgrade kit Use a 5 mm Allen wrench to fasten the Interface cover into place with two sets of M6 hardware M6 x 30 socket head cap screws SHCS P N 46 328417P...

Страница 204: ...rips flex so the extensions can fill the gap between the elevation drive assembly and the side covers The front edge also has a notch to accommodate the elevation drive assembly Be careful not to catch the extensions or bend the metal strips while maneuvering the Top Cover into place 2 Refer to Figure 6 132 Square the Table Top cover between the side covers leaving an even gap on both sides Figure...

Страница 205: ...e rails When the table moves back to the CT detent the metal Table Top Cover P N 2333078 slides beneath the Top Cap Assembly The Top Cap attaches with a bracket to the foot end of the secondary base 1 Use a 5 mm Allen wrench to fasten the Top Cap bracket into place with two sets of the following M5 hardware M5 x 16 socket head cap screw SHCS P N 46 328417P505 M5 lock washer P N 46 328432P8 M5 flat...

Страница 206: ...ts dry fit the Back Cap before tightening the back bracket hardware into place Leave the hardware loose enough to shift the bracket but tight enough to hold it in place Fit the Back Cap into place and insert a skinny screwdriver blade or thick wire through each set of Back Cap and bracket holes Shift the bracket to align its holes to the Back Cap Expect to take multiple tries to fit the Back Cap t...

Страница 207: ... 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Chapter 6 Table Page 207 3 Refer to Figure 6 136 and Figure 6 137 Locate and remove the Back Cap P N 2320164 from the kit Figure 6 136 Back Cap P N2320164 Rear View w Profile Bracket ...

Страница 208: ... Figure 6 137 5 Use a 3 mm Allen wrench to fasten the Back Cap into place with two sets of M4 hardware M4 x 20 mm socket head cap screws SHCS P N 46 328417P3 M4 lock washer P N 46 328432P2 M4 flat washer P N 46 328430P2 Figure 6 137 Attach Back Cap to Motor Base 6 2 8 Finish the Mechanical Installation 1 Wipe down the table covers as needed to remove any marks 2 Clean up the area This completes th...

Страница 209: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Chapter 6 Table Page 209 Figure 6 138 ME 1 5 Table Block Diagram ...

Страница 210: ... Refer to Figure 6 139 Press and hold the PET position button to drive the base to the PET detent The PET position LED stops flashing and remains lit b Press and hold the CT position button to drive the base back to the CT detent 7 Shutdown applications a Click the SERVICE icon to open the Service Desktop b Click the TOOLBOX UTILITY icon to open the tab c Click on APPLICATIONS SHUTDOWN 7 Open a wi...

Страница 211: ...LL to open the tab d Click FLASHDOWNLOAD to open the GUI e Click UPDATE NOTICE FLASH download may require being run more than once Continue to update FLASH download until the successful completion message displays f Upon successful completion of the download click DISMISS to close the GUI 21 Return to the Service Desktop and characterize the secondary base a Refer to Figure 6 139 Press the cradle ...

Страница 212: ...p 23 Refer to Section 8 1 1 on page 243 to run VQC 24 Refer to Figure 6 141 Fine tune the PET and CT flag positions a Use the gantry control pushbutton to drive the base to the CT position b Refer to Figure 6 142 Use a 2 5 mm Allen wrench to slightly loosen the two socket head cap screws that fasten the flag plate to the detent c Face the head of the screw and use a 2 5 mm Allen wrench to turn the...

Страница 213: ...eturn to Step 21 Characterize the base for the second time 9 Run another hardware reset 10 Set up and run a CT PET scan to test the new characterization values 6 2 10 Manual Table Wiring Refer to Figure 6 143 and Figure 6 144 for manual table wiring diagrams Figure 6 143 2328900 2SCH Loosen hardware with 2 5 mm Allen wrench Adjusting Screw ...

Страница 214: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 214 Chapter 6 Table Figure 6 144 2338513SCH ...

Страница 215: ...ith the clutch motor and position pot pulley set screws tightened Replace the position pot Go to Section 6 2 6 25 on page 164 and follow the procedure to set up the pot Go to page 210 and characterize the table base 3 Broken pot connection wire Check for loose solder joints and broken wires inside the insulation The exposed pot wires are easy to catch and break Replace or solder the wires If the p...

Страница 216: ...3 1 Symptom The table base or cradle unlatches when pressing the Move to Scan button 6 3 3 2 Probable Causes and Suggestions Incorrect version of firmware Call the Online Center 6 3 4 Delta Z Not in Spec 6 3 4 1 Symptom Image Alignment software reports that Delta Z is not in spec 6 3 4 2 Probable Causes and Suggestions 1 VQC report displays incorrect direction Turn the positioning screw in the dir...

Страница 217: ... to the gantry harness The gantry cable connectors are a part of the gantry main harness These cable connectors are not the same ones used by the old version of the Motor Clutch assembly 6 4 Procedures and Adjustments The VQC procedure must also performed after running the CT table characterization procedure Refer to Section 8 1 1 6 5 Replacement Procedures 6 5 1 Replacing the Secondary Base Timin...

Страница 218: ... pulley to tighten the timing belt and fasten the four screws in the slots 6 5 2 Replacing the Secondary Base Front Pulley 1 Refer to Figure 6 146 Loosen the four screws that hold the front pulley to release the timing belt 2 Refer to Figure 6 147 Loosen the four screws holding the timing belt clamp and remove the clamp with the belt 3 Replace the pulley 4 Insert the new timing belt over the pulle...

Страница 219: ...igure 6 148 Secondary Base Motor General View 2 Remove the four screws holding the motor on the motor base See 2 in Figure 6 149 3 Refer to Figure 6 149 Push the coupling to close the gap between the coupling and the motor flange and push the motor to the side of the secondary base 4 Loosen the set screw holding the shaft No 3 in Figure 6 148 and Figure 6 149 and push the shaft into the clutch Fig...

Страница 220: ... flange 7 Put the new motor in position next to the side of the secondary base 8 Refer to Figure 6 151 Using pliers pull the shaft out of the clutch until the groove is visible and close the set screw Figure 6 151 Motor Showing Groove and Set Screw 9 Move the motor to its operating position 10 Fasten the four screws connecting the motor to the motor base 11 Place the coupling between the two shaft...

Страница 221: ...lange 7 Put the motor in position next to the side of the secondary base 8 Refer to Figure 6 151 Using pliers pull the shaft out of the clutch until the groove is visible and close the set screw 9 Move the motor to its operating position 10 Fasten the four screws connecting it to the motor base 11 Place the coupling between the two shafts and tighten the coupling screws 6 5 5 Replacing the Seconda...

Страница 222: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 222 Chapter 6 Table ...

Страница 223: ...st Direction 2286765 100 Chapter 1 Section 2 Gantry 7 1 CT PET Gantry Functional Description 7 1 1 Mechanical Description The Discovery LS gantry is built from two main building blocks CT Gantry LightSpeed Plus 4 slice LightSpeed Ultra 8 slice or LightSpeed 16 16 slice PET Gantry PET Advance The electro mechanical design for the system takes into account the need for a field upgrade path for the P...

Страница 224: ...installed on a set of rollers on one side and a linear bearing assembly on the other The linear bearing assembly is connected to a baseplate that is anchored to the floor The gantry is also connected to a mechanical driving mechanism that is designed to enable movement of the gantry to its service position using an electric screwdriver to drive the lead screw of the gantry Figure 7 1 Gantry Transp...

Страница 225: ... gantry into its service position some of the covers require removal to allow access to the driving mechanism and the gantry holding bracket Disassembly of covers is detailed in Section 7 6 1 and activation of the driving mechanism to move the PET Gantry to its service position is detailed in Section 7 6 2 7 1 2 5 System Calibration One of the major concerns in connecting two different systems suc...

Страница 226: ...ircuit that operates with the same functionality as the original separate safety nets The connection is implemented through a free relay in the CT Gantry The PET Source indicators are installed on the CT Front Cover Specific cabling transfers the signals from the PET Gantry to the CT Front Cover The PET Alignment lights hardware is not assembled The Discovery LS System uses CT Alignment hardware t...

Страница 227: ...hanism is shown in Figure 7 3 Figure 7 3 PET Gantry Drive Mechanism Note The sub assemblies of the drive mechanism are shown in Figure 7 5 Figure 7 6 and Figure 7 8 To replace the PET gantry drive mechanism 1 Disassemble the old drive mechanism by loosening the 4x M6 screws on the gantry back beam and removing the back and front bearing bases Figure 7 4 Figure 7 4 Driving Mechanism Internal Assemb...

Страница 228: ...ng Trapezoidal Nut P N 2294692 into the Nut Bearing Housing P N HB60002064 Figure 7 5 PET Gantry Drive Mechanism Sub Assemblies View 1 3 Fasten the tracking trapezoidal nut into position with the external Retaining Ring shown in Figure 7 4 30 mm diameter P N HB70020300M Tracking Trapezoidal Screw Small Bearing Unit Tracking Bearing Basis Adjustable Baseplate Distances ...

Страница 229: ...rews Note All screws are assembled with flat and lock washers 5 Take the assembled unit and fasten it to the Driving Nut Holder P N 2294699 using two M10 x 30 mm screws 6 Assemble the Tracking Bearing Basis P N 2294698 onto the adjustable baseplate of the gantry using four M8 x 16 mm screws Figure 7 6 PET Gantry Drive Mechanism Sub Assemblies View 2 Tracking Trapezoidal Nut Nut Bearing Housing Nut...

Страница 230: ...e small bearing unit and fix the retainer ring in position 9 Refer to Figure 7 4 and Figure 7 5 Take the Driving Nut Holder and assembled parts and screw them into the Tracking Trapezoidal Screw 10 Refer to Figure 7 8 On the front side of the gantry assemble the tracking screw support Flange P N 2299163 onto the Tracking Screw Support Bracket P N 2299164 using three M4 x 12 mm screws Figure 7 8 PE...

Страница 231: ... to the linear bearing This prevents the screw from seizing up 13 Tighten the three M6 x 10mm screws 14 Connect the nut holder to the gantry back beam using four M6 x 16 mm screws 15 Drive the gantry back and forth on its rails to ensure that the drive mechanism is functioning properly 7 5 2 Gantry Cables or Retractor Replacement If it becomes necessary to replace a cable or a retractor see the fo...

Страница 232: ... DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 232 Chapter 7 Gantry Figure 7 10 Retractors Mechanical Connection General View 1 Figure 7 11 Retractors Mechanical Connection General View 2 ...

Страница 233: ... the bracket to the legs crossbeam using four M6 x 20 mm screws 2 Place the External Retractor P N HF000375200 on the floor and open it so that its clips face toward to the floor Note Use a flat blade screwdriver to unlock the retractor chains 3 If replacing the retractor disconnect the Outer Retractor Bracket P N 2296530 and assemble it on the new retractor Secure the outer retractor bracket to t...

Страница 234: ...les from moving 7 Close the retractor by fastening the clips Cable Part No Old Gantries Part No New Gantries Connection Length of Cable Protruding from Retractor AEDI 46 325061 2121185 J1 207 cm AEDI 46 325061 2121185 J2 207 cm AEDI 46 325061 2121185 J3 207 cm AEDI 46 325061 2121185 J4 207 cm AEDI 46 325061 2121185 J5 207 cm AEDI 46 325061 2121185 J6 207 cm AEDI 46 325061 2121185 J7 207 cm AEDI 46...

Страница 235: ...o Figure 7 14 and Figure 7 15 Fold the retractor and connect the bracket to the legs crossbeam using four M6 x 20 mm screws Figure 7 14 External Retractor Connected to Legs Crossbeam Figure 7 15 External Retractor and Cables External Retractor Clips Legs Crossbeam Bracket Length of Protruding Cable External Retractor ...

Страница 236: ...46 311920P3 that was connected to GAN1 A37 J15 must be inserted into fiber optic conduit to protect it inside the length of the retractor Internal Retractor Preparation 1 Refer to Figure 7 14 and Figure 7 15 Fold the retractor and disconnect the bracket to the legs crossbeam using four M6 x 20 mm screws 2 Place the Internal Retractor P N HF00037125I inside the external retractor on the floor and o...

Страница 237: ...g radius is 12 5 mm 6 Tie wrap the bundle of cables on the bracket side to prevent the cables from moving 7 Close the retractor by fastening the clips Cable Part Number Connection Length of Cable Protruding from Retractor Power 46 311772P1 TS1 170 cm Power 46 311772P1 TS2 170 cm Power 46 311772P1 TS3 170 cm RS232 46 311828G1 G2 J13 85 cm Ethernet 46 311844G2 J11 85 cm Fiber Optic Routed inside con...

Страница 238: ... Figure 7 18 Fold the retractor and connect the bracket to the legs crossbeam using four 6 x 20 mm screws Figure 7 17 External and Internal Retractors Connected to Legs Crossbeam Figure 7 18 Internal Retractor and Cables Clips Legs Crossbeam Brackets Length of Protruding Cables External Retractor Internal Retractor Internal Retractor ...

Страница 239: ...cted to the A36 2 bracket should be routed under the legs crossbeam Other cables should be routed on the external side of the legs crossbeam Note Do not route any cables on the internal or upper side of the legs crossbeam Connect the cables so that their minimum bending radius is 12 5 mm Figure 7 19 External Cables Connections to A36 1 and A37 1 Brackets Figure 7 20 Power Cable Connections to A36 ...

Страница 240: ...ent of the Short Positioning Pin P N 2287052 1 Refer to Figure 7 21 Remove the four screws holding the pin base Figure 7 21 Replacing the Short Positioning Pin 1 2 Refer to Figure 7 22 Remove the old pin and replace with the new one Figure 7 22 Replacing the Short Positioning Pin 2 Short Positioning Pin Screw 4 on Pin Base ...

Страница 241: ...he locks on the CT Left and Right Side Covers Lift and remove the covers 3 Open the bolts holding the Bottom Left and Right Covers and pull the covers out 4 Lift up the CT Top Cover and remove it 7 6 2 Activating the Driving Mechanism 1 Remove the bolt locking washer and the washer from the mechanical stops on both the PET legs 2 Connect an electric screwdriver to the driving screw of the driving ...

Страница 242: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 242 Chapter 7 Gantry ...

Страница 243: ...onstruct the VQC phantom Section 8 1 1 4 5 VQC processing and software realignment Section 8 1 1 5 6 If QC results show alignment to be within service specifications calibration is OK If not proceed to the next step 7 View the Mechanical Alignment table Section 8 1 1 6 8 PET gantry adjustment Section 8 1 2 4 9 Repeat Step 4 through Step 7 Note Volumetric calibration is performed as a part of initi...

Страница 244: ...panel click Options and select Reset Plane Offset from the drop down list 6 From the Volumetric QC panel click Options and select Quit Screen 7 Reset the table as follows a On the Image Monitor click the Service button The Service Desktop displays b From the Service Desktop click System Reset The System Reset screen displays c Click the Scan button and then click Run 8 1 1 3 Positioning the VCQ Ph...

Страница 245: ... be updated For information on CT blank scans refer to the Discovery PET CT Operator Guide 2288677 100 Chapter 5 Fast CT Calibration For information on PET blank scans refer to the PET Advance Operator Manual 2280383 100 Section 4 2 Daily Blank Scan Correction The VQC phantom is scanned and reconstructed with prescribed CT and PET Transmission protocols as follows 1 Refer to Figure 8 2 Click the E...

Страница 246: ...apter 8 System QC Calibration and Functional Tests 3 Refer to Figure 8 4 In the opened Patient Information screen enter the following Patient ID VQC current date and test number for example VQC_8_13_N1 Patient Name Same as Patient ID Figure 8 4 Patient Information Screen Patient ID Patient Name ...

Страница 247: ...an is completed click the Pet Series icon on the Scan Monitor 10 Click Accept Setup and perform PET Transmission VQC acquisition Confirm that there is no emission activity by clicking OK in the dialog box The scan takes 5 minutes default time If the count rate is less than 1000 Kcps increase the scan time to 10 minutes 11 When the acquisition is finished select Quit Screen from the Options menu to...

Страница 248: ... Image Monitor desktop area The Scan Monitor displays the PET main screen 2 Click the Full QA button on the PET main screen 3 Select Volumetric QC from the drop down menu The Volumetric QC panel shown in Figure 8 6 displays Figure 8 6 Initial Volumetric QC Panel 4 Refer to Figure 8 7 Click Load to load the image sets that represent the CT and PET planes The Images Database Navigator displays showi...

Страница 249: ...t 6 From the Image Sets list in Figure 8 8 select the two image sets that represent the CT and PET slices and click OK The Image Alignment Table shown in Figure 8 9 displays Figure 8 9 Image Alignment Table Note The Image Alignment Table displays system messages in a box at the bottom of the panel These messages are for the User Operator only and are related to the software realignment process PET...

Страница 250: ...Z deltas misalignments in mm between PET and CT images are presented in the Delta table columns The out of user limit values are RED in color The system should be mechanically calibrated until all the deltas are inside the Service Limits Gantry Alignment Table If all the deltas are within the user limits this section of the screen will not immediately display Proceed as follows Click Options and s...

Страница 251: ...ts found in the Image Alignment Report The illustration next to the report shows the position of the adjusters and the screws on the PET Gantry baseplates 3 Make the required adjustments to the leveling adjusters and screws on the linear bearing assembly baseplate and the leveling adjusters on the rollers baseplate of the PET Gantry The adjustments are made by turning the adjustment screws the spe...

Страница 252: ...cking nut b If necessary turn the Z Adjustment Screw clockwise until it rests firmly on the PET Positioning Block c Refer to Figure 8 11 Loosen the three screws attaching the PET Positioning Block to the secondary base d Reposition the Z Adjustment Screw by the Z measurement shown in the VQC Transformation Panel in Figure 8 10 e Close the locking nut Option Description of Function View Fused Image...

Страница 253: ...rocedures perform the following steps 1 Verify that the two dollies are installed on the PET gantry Note Make sure a 2 in x 2 in x 30 in wooden block is available to place between the dolly and gantry while raising the gantry to prevent bending of the dolly into the gantry s side 2 Verify that the PET Gantry is in its normal working position next to the CT Gantry 3 Optional If the driving mechanis...

Страница 254: ...lose the adjuster of the rear high load roller shown in Figure 8 13 to lift it from the baseplate leaving only the front high load roller in contact with the baseplate Figure 8 13 High Load Rollers 8 1 2 3 Preparing the Gantry for Adjustment 1 Release the adjuster securing screw from each linear bearing assembly adjuster shown in Figure 8 14 Figure 8 14 Linear Bearing Assembly Adjuster Screws and ...

Страница 255: ...ange 4 Make sure that the securing screws shown in Figure 8 15 on the high load roller adjusters are closed enough to prevent the rollers from falling off the gantry leg verify that the roller can be rotated freely Figure 8 15 Securing Screws on Rollers 5 Unscrew and raise the adjuster locking rings with 3 5 turns from the two linear bearing assembly adjusters and from the front high load roller A...

Страница 256: ... that clockwise or counterclockwise adjustments are defined when viewing the adjusters from above c Note that base plate x axis alignment screw adjustments are defined when viewing the screw from the outer side of the base plate and that screws are arranged in pairs so that rotation of the outside screw must be performed together with a proportional counter rotation of the inner screw 4 Tighten th...

Страница 257: ... the screws marked 2 and fasten them tightly e Fasten screws marked 1 tightly Figure 8 18 Mechanical Stoppers Adjustment Screws 12 Tighten all the baseplate screws that were previously loosened 13 After VQC confirms that the Gantry is aligned within specifications adjust the rear high load roller adjuster to a torque of 30 Nm so that the roller rests firmly on the floor 14 Replace the bracket that...

Страница 258: ... only Landmarks should be defined only with the inner laser light in the CT position 2 The landmark should be aligned on the rear part of the phantom close to the cover The distance between the rear part of the phantom and the landmark should be less than 2 cm 3 After the landmarks are defined changes to the cradle position are not permitted The movement of the phantom to the PET position is only ...

Страница 259: ...cies of the Discovery LS procedures for maintenance of mechanical components Table 9 1 Maintenance Procedures of Mechanical Components Description of Procedure Frequency Lubricate PET gantry driving mechanism linear bearings rails rollers lead screw See Section 9 1 1 1 Year Secure nuts screws of base plates rollers driving assembly 2 Years Verify covers brackets screws tightness and clearances Vis...

Страница 260: ...e rollers rotate freely and smoothly 3 Check the secondary base linear rails a Verify that they are not rusty b Verify that they are not bent or distorted c Check for proper oiling and oil if necessary Use a grease gun for this purpose d Verify the tightness of the bearings 9 1 1 2 Quantity and Frequency of Lubrication The lubrication procedures should be carried out every 2 years or during routin...

Страница 261: ...ar bearings several times back and forth along the rail to spread the grease on the rail 9 1 1 5 Greasing the High Load Rollers Linear Guide 1 Apply a few dabs of grease to several points along the linear guide 2 Move the high load rollers several times back and forth along the guide to spread the grease on the guide 9 1 1 6 Greasing the Secondary Base Linear Bearings Follow the procedure describe...

Страница 262: ...ction and verification of all table bulkhead connections 1 Year Visual inspection and verification of all the cable connections of cables on the gantry side of the table retractor 1 Year Visual inspection and verification of all cables connected to new A36 1 A36 2 and A37 1 panels on the back of the PET Gantry 1 Year See Section 7 5 3 Visual inspection and verification of all PET and CT E Stop cab...

Страница 263: ...e Red Coded Table 10 1 CT Electronics Cabinet Cables Note 1 See the appropriate manual below LightSpeed 2 X Installation Manual Direction 2243312 100 for 4 slice SDAS Systems LightSpeed 3 X Installation Manual Direction 2296439 100 for 4 or 8 slice MDAS Systems LightSpeed 4 X Installation Manual Direction 2341957 100 for 16 slice MDAS Systems Note 2 See Discovery LS Site Preparation Manual Directi...

Страница 264: ...V Power CAB1 A3 TS 3 46 311772P1 Gantry Includes Ground Gantry and Table Power CAB1 A3 TS 4 46 311772P1 Gantry Includes Ground Main Power Input CAB1 A3 TS 11 Hospital Outlet Includes Ground AEDI Cables X14 CAB1 A3 J1 J14 46 325061P1 Gantry Bulkhead 14 Identical Cables Reddog Serial Cable X2 CAB1 A3 J20 J21 46 311629P1 Gantry Bulkhead 2 Cables DAS Data Fiber Optic Cable CAB1 A3 J15 46 311920P1 Gant...

Страница 265: ...828G3 Pet PDU Magic OWS Cable OWS1 A6 Serial 1 46 311828G4 Pet PDU Serial Line RS232 OWS1 A6 Serial 2 46 311828G1 Gantry PDB Power PDB 46 311772P1 PDU Includes Ground Console Power Power Panel 2266879 CPDU For H2 OC 2335376 For GOC1 2347378 NGPDU Scan Interlock Console Back Bulkhead J20 2271060 Gantry DAS Data Fiber Optic Console Back Bulkhead J52 2117848 2 Gantry LAN Cable Scan LAN Transceiver 22...

Страница 266: ...ntry Cable 2265683 Table I F J3 EXT Table Bulkhead J3 2295956 CT Gantry Cable 2263663 Table I F J4 EXT Table Bulkhead J4 2295958 CT Gantry Cable 2265683 Table I F J5 EXT Table Bulkhead J5 2295959 CT Gantry Cable 2271059 Table I F J9 EXT Table Bulkhead J9 2295960 CT Gantry Cable 2265683 Table I F J10 EXT Table Bulkhead J10 2295961 CT Gantry Cable 2309061 Ground Table Base ETC Backplane 2295969 CT G...

Страница 267: ...try Cable 2223729 Table I F J3 EXT Table Bulkhead J3 2295956 CT Gantry Cable 2263663 Table I F J4 EXT Table Bulkhead J4 2295958 CT Gantry Cable 2265683 Table I F J5 EXT Table Bulkhead J5 2295959 CT Gantry Cable 2271059 Table I F J9 EXT Table Bulkhead J9 2295960 CT Gantry Cable 2265683 Table I F J10 EXT Table Bulkhead J10 2295961 CT Gantry Cable 2265683 Ground Table Base ETC Backplane 2295969 CT Ga...

Страница 268: ...09064 and 2309059 Remote Control KB Box J2 2309065 Operator Switch Base Axis Motor M KB Box J4 2309067 Table Motor Pedals L S I Table Bulkhead J13 2309063 Pedal Mechanism INTF SW and CL CONT I Table Bulkhead J12 2309066 ETC I F J7 CT PET Positions ETC I F J8 2318721 Pedal Mechanism Cable Connector Part Number Destination Secondary Base SB Connector Bracket Ground Ground Screw 2340388 Grounding Bar...

Страница 269: ...igh Voltage AC Power Panel 267644 CPDU 2347514 NGPDU High Voltage DC Power Panel 2267642 CPDU 2347513 NGPDU 120 VAC Power Power Panel 2266880 CPDU J4 On Power Panel 2347377 NGPDU TS5 E Stop Sources CT PET CT 1000 J1 2295382 PET Gantry A37 J101 CT PET LAN Power Panel J3 2295968 PET Gantry A37 J102 Table I F 2271059 From GAN to Table Retractor Side 2271059 To Cable 2295959 Power 120 VAC From GAN to ...

Страница 270: ...el 267644 CPDU 2347514 NGPDU High Voltage DC Power Panel 2267642 CPDU 2347513 NGPDU 120 VAC Power Power Panel 2266880 CPDU J4 On Power Panel 2347377 NGPDU TS5 E Stop Sources CT PET CT 1000 J1 2295382 PET Gantry A37 J101 CT PET LAN Power Panel J3 2295968 PET Gantry A37 J102 Table I F 2271059 From GAN to Table Retractor Side 2271059 To Cable 2295959 Power 120 VAC From GAN to Table Retractor Side 226...

Страница 271: ...A3 J21 Fiber Optic A37 1 J15 46 311920P3 PET PDU CAB1 A3 J15 Gantry Serial A37 1 J13 46 311888 OWS 1 RHK Terminator A37 1 J12 2295966 A6 Serial 2 LAN A37 1 J11 2295968 LAN CT PET A37 1 J102 2295968 CT Gantry Power Panel E Stop Sources CT PET A37 1 J101 2295382 CT Gantry 1000 J1 Service Outlet A36 2 TS3 46 311772P2 PDU CAB1 A2 TS8 Table Gantry A36 2 TS2 46 311772P2 PDU CAB1 A2 TS4 REDDOG Detector H...

Страница 272: ...41957 100 for 16 slice MDAS Systems Table 10 11 Discovery LS Grounding Cables Manual Tables No Part Number Gauge Description From To 1 Hospital Supplied See Note 1 Power and Ground Hospital Mains PET PDU and CT PDU 2 46 311772 10 Power and Ground 4 cables PET PDU 3 cables to PET Gantry 1 cable to PET PDB 3 46 327217P1 2275844 1 0 Ground CT PDU Grounding Bar 4 See Note 2 Ground CT Gantry Power Pane...

Страница 273: ...Speed 4 X Installation Manual Direction 2341957 100 for 16 slice MDAS Systems Table 10 12 Discovery LS Grounding Cables Automated Tables No Part Number Gauge Description From To 1 Hospital Supplied See Note 1 Power and Ground Hospital Mains PET PDU and CT PDU 2 46 311772 10 Power and Ground 4 cables PET PDU 3 cables to PET Gantry 1 cable to PET PDB 3 46 327217P1 2275844 1 0 GND CT PDU Grounding Ba...

Страница 274: ...ections Manual and Automated Tables CT PDU PET PDU Hospital PE PE PET GANTRY Switch Box FE CT GANTRY FE Power Panel Retractor AWS PET PET DRAGON CONSOLE CT Power Distribution Box Retractor TABLE Backplane ETC Motor FE FE PET Left Leg k j l m n o p q r s 11 Bar Grounding Mains FE Functional Diagram Only 12 Manual tables KB Box Automated Tables SB Connector Bracket ...

Страница 275: ...wer Front View Bulkhead BNC Mini BNC behind LAN DAS behind T op View including Bulkhead HVDC omitted for clarity 1 2 3 LAN DAS fiber Axial Mtr Pwr BNC Mini BNC 120V AC P ower Scan Display Console Monitors Clamps Clamp Detail C STC Backplane J7 J8 SCIM Trackball J19 Phone Line Keyboard 1 2 2275584 2 2 Ground Retractor J11 J12 J13 T able IF 2271059 J17 STC Backplane 120 V AC 2265683 Tilt Relay Bd 22...

Страница 276: ...ower Front View Bulkhead BNC Mini BNC behind LAN DAS behind T op View including Bulkhead HVDC omitted for clarity 1 2 3 LAN DAS fiber Axial Mtr Pwr BNC Mini BNC 120V AC P ower Scan Display Console Monitors Clamps Clamp Detail C STC Backplane J7 J8 SCIM Trackball J19 Phone Line Keyboard 1 2 2275584 2 2 Ground Retractor J11 J12 J13 T able IF 2271059 J17 STC Backplane 120 V AC 2265683 Tilt Relay Bd 2...

Страница 277: ...Front View Bulkhead BNC Mini BNC behind LAN DAS behind T op View including Bulkhead HVDC omitted for clarity 1 2 3 LAN DAS fiber Axial Mtr Pwr BNC Mini BNC 120V AC P ower Scan Display Console Monitors Clamps Clamp Detail C STC Backplane J7 J8 SCIM Trackball J19 Phone Line Keyboard 1 2 2275584 2 2 Ground Retractor J11 J12 J13 T able IF 2271059 J17 STC Backplane 120 V AC 2265683 Tilt Relay Bd 226366...

Страница 278: ...ble IF 2271059 Power 120 VAC 2265683 2263663 2268222 2265881 2 Tilt Limit Sw LAN Secondary Base Static Table Motor J1 J3 J2 J4 GND ETC Back Plane 2301800 GND Table Base 2295969 KB Box GND 2309245 Pedals LS Clutch E 2309062 Remote Control 2309065 Base Axis Motor M KBPB Supply 2309061 Base Axis Motor R 2309058 Clutch R 2309059 Pedals L S R 2309064 To PET Gantry Chassis LAN CT PET GAN 2295968 EStop S...

Страница 279: ...larity 1 2 3 LAN DAS fiber Axial Mtr Pwr BNC Mini BNC 120V AC P ower Clamps Clamp Detail C STC Backplane J7 J8 SCIM Trackball 1 2 Retractor J11 J12 J13 J4 J3 J2 J1 J10 J9 J5 Secondary Base 1 0 gnd 1 0 gnd Braided GND cable Control 2266014 HVDC Power HVDC Axial Mtr Power 120V AC Power 1 0 gnd 2275844 J52 J20 P ower Panel Scan LAN T ransceiver Host Computer Console DASM Option Hospital Network Scan ...

Страница 280: ...C omitted for clarity 1 2 3 LAN DAS fiber Axial Mtr Pwr BNC Mini BNC 120V AC P ower Clamps Clamp Detail C STC Backplane J7 J8 SCIM Trackball 1 2 Retractor J11 J12 J13 J4 J3 J2 J1 J10 J9 J5 Secondary Base 1 0 gnd 1 0 gnd Braided GND cable Control 2266014 HVDC Power HVDC Axial Mtr Power 120V AC Power 1 0 gnd 2275844 J52 J20 P ower Panel Scan LAN T ransceiver Host Computer Console DASM Option Hospita...

Страница 281: ...tted for clarity 1 2 3 LAN DAS fiber Axial Mtr Pwr BNC Mini BNC 120V AC P ower Clamps Clamp Detail C STC Backplane J7 J8 SCIM Trackball 1 2 Retractor J11 J12 J13 J4 J3 J2 J1 J10 J9 J5 Secondary Base 1 0 gnd 1 0 gnd Braided GND cable Control 2266014 HVDC Power HVDC Axial Mtr Power 120V AC Power 1 0 gnd 2275844 J52 J20 P ower Panel Scan LAN T ransceiver Host Computer Console DASM Option Hospital Net...

Страница 282: ...295969 Base Axis Motor R 2309058 Clutch R 2309059 Pedals L S R 2309064 spare To PET Gantry Chassis LAN CT PET GAN 2295968 EStop Sourc CT PET 229 CT Gantry LAN DAS Behind To CT Front Cover Source Indicators To Cover I F STC Backpla J6 Terminator Can Bus To Cove A1 I F 2295381 2295965 Covers to ETC G a n t r y T i l t P o w e r Braided GND Cable 2275967 2275844 2275844 Plastic conduit Grounding Bar ...

Страница 283: ... in Figure 10 11 Figure 10 10 PET System Interconnections CT GANTRY PET G ANTRY RETRACTO R PET COMPUTER ELECTRONICS CABINET Fiber Optic Cable Source Position 46 311920P3 14 x AEDI Cables 46 325061P1 or 2121185 Serial Link Cables 46 311828 Ethernet Cable 46 311844G2 Serial Link Cables 46 311828 G3 G4 Ethernet Cable 46 3118442 G ND CT PET 2295967 Power Panel T o G r o u n d i n g B a r LAN CT PET G ...

Страница 284: ...T System Power Interconnections CT GANTRY PET COMPUTER ELECTRONICS CABINET PDU MONITOR TABLE CONTROL ROOM ELECTRONICS ROOM PDB UP TO 100 ft UP TO 100 ft Power cable to PDB Label both ends 1 Label both ends 2 Label both ends 3 SCANNER ROOM Power cable for gantry and table Flexible conduit and power cable To scanner system disconnect PET TAPE ...

Страница 285: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Chapter 10 Electrical Connections Page 285 10 4 E Stop Wiring Figure 10 12 PET E Stop Wiring ...

Страница 286: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 286 Chapter 10 Electrical Connections Figure 10 13 CT E Stop Wiring ...

Страница 287: ...E HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Chapter 11 Replacement Parts Page 287 Chapter 11 Replacement Parts 11 1 PET Gantry Figure 11 1 Gantry Rear View 1 2 3 4 8 ...

Страница 288: ...gs Cross Beam No 1 2 2290093 Bulkhead Bracket Left No 1 3 2290094 Bulkhead Bracket Power No 1 4 2290095 Bulkhead Bracket Data No 1 5 2296528 Static Retractor Bracket not shown in illustration No 1 6 2296529 Inner Retractor Bracket Not shown in illustration No 1 7 2296530 Outer Retractor Bracket Not shown in illustration No 1 8 XW040440030 Bumper OD40 Yes 2 Table 11 1 Gantry Parts ...

Страница 289: ...L Chapter 11 Replacement Parts Page 289 Figure 11 2 Base Plate and Rollers Item Part Number Description FRU Yes No Quantity 9 2290246 High Load Rollers Assembly Yes 2 101 2285908 Linear Base Plate No 1 102 2287054 Rollers Base Plate No 1 Table 11 2 High Load Roller Parts 9 101 102 ...

Страница 290: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 290 Chapter 11 Replacement Parts Figure 11 3 Linear Bearing Assembly and Adjusters 10 11 12 13 11 14 12 15 16 15 16 ...

Страница 291: ...sher D Lower Yes 2 11 2287048 Adjuster Leveling Yes 4 12 2290076 Adjuster Lock Ring Yes 4 13 2292296 Adjuster Lock Washer Yes 4 14 2292302 Adjuster Spherical Washer C Upper Yes 4 15 2290248 Linear Driving Assembly Yes 1 16 HG01041720E Linear Rail Yes 1 Table 11 3 Linear Bearing Assembly and Adjusters Parts Item Part Number Description FRU Yes No Quantity 17 2287052 Positioning Pin Short Yes 2 Tabl...

Страница 292: ...PET Gantry Retractor Assembly Schematic Illustration Only Item Part Number Description FRU Yes No Quantity 18 HF00371251 Inner Cable Retractor Yes 1 19 HF00371251 Outer Cable Retractor Yes 1 6 2296529 Inner Retractor Bracket No 1 7 2296530 Outer Retractor Bracket No 1 Table 11 5 Gantry Retractor Parts Clips Legs Crossbeam 18 19 6 7 ...

Страница 293: ...s 1 25 2295967 GND CT PET Cable Not shown in Illustration Yes 1 26 2295968 LAN CT PET Cable Not shown in Illustration Yes 1 26a 2316636 PET SVC door terminator Not shown in Illustration No 1 Table 11 6 Cables and Terminators Item Part Number Description FRU Yes No Quantity 27 2174128 SCSI Cable Not shown in Illustration Yes 1 28 2197229 3 5 Port with Hub Fast Ethernet Not shown in Illustration Yes...

Страница 294: ...rs Figure 11 6 Secondary Base Covers 1 2 3 2 4 5 Item Part Number Description FRU Yes No Quantity 1 2309060 Top Cover Secondary Base Yes 1 2 2309046 Back Cover Secondary Base Yes 2 3 2309048 Rear Cover Secondary Base Yes 1 4 2309045 Front Left Cover Secondary Base Yes 1 5 2309044 Front Right Cover Secondary Base Yes 1 Table 11 8 Secondary Base Covers Parts ...

Страница 295: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Chapter 11 Replacement Parts Page 295 11 2 2 Secondary Base Components Figure 11 7 Secondary Base Components 1 ...

Страница 296: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 296 Chapter 11 Replacement Parts Figure 11 8 Secondary Base Components 2 Mo tor Clu tch ...

Страница 297: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Chapter 11 Replacement Parts Page 297 Figure 11 9 Secondary Base Components 3 ...

Страница 298: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 298 Chapter 11 Replacement Parts Figure 11 10 Secondary Base Components 4 0700 ...

Страница 299: ...Shaft Yes 1 00180 2306555 Lock Ring Yes 4 00190 2306556 Adjuster Leveling Pad Yes 4 0200 2306557 Leveling Pad Yes 4 0150 2309028 Motor Coupling Yes 1 0160 2309029 Cam Rail Secondary Base Yes 1 B010279211 Motor Servo Not shown Yes 1 DG00030428B Clutch Torque 240 Not shown Yes 1 2309065 Remote Control Secondary Base Not shown Yes 1 2309062 Cable Limit Switch and Clutch Not shown Yes 1 2199586 Positi...

Страница 300: ...es 2 0540 HB201161903 Bearing Ball Deep Groove 175 Yes 2 0350 HB70010300 M Retaining Ring Internal Yes 2 0360 HB70020150 M Retaining Ring External Yes 2 0660 HG00052505M Timing Belt Segment Yes 1 0670 HG000560018 Timing Belt 5 mm Yes 3 0640 HG010424002 Linear Motion Bearing Assembly Yes 1 0500 XW040420015 Bumper Yes 1 HK000112520 Spring Compression Not shown Yes 1 Item Part Number Description FRU ...

Страница 301: ...Table Retractor Components Figure 11 11 Table Retractor Components Item Part Number Description FRU Yes No Quantity 0010 2309773 Retractor Cable Assembly Internal Table Yes 1 0020 2309774 Retractor Cable Assembly Middle Table Yes 1 0030 2309775 Retractor Cable Assembly External Table Yes 1 Table 11 10 Table Retractor Components ...

Страница 302: ... Secondary Base Cables Item Part Number Description FRU Yes No Quantity 2309063 Pedals LS Cable No 1 2309066 Interface Switch and Clutch Control Cable No 1 2318721 CT PET Positions Cable No 1 2301800 Ground ETC Backplane Cable No 1 2295969 Ground Table Base Cable No 1 2309245 KB Box Ground No 1 2309061 KB Box Supply Cable No 1 ...

Страница 303: ...N 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Chapter 11 Replacement Parts Page 303 11 3 Covers Figure 11 12 shows a general view of the Discovery LS set of covers Figure 11 12 Discovery LS Covers General View ...

Страница 304: ...3 1 Cover Sections and Components The Discovery LS CT and PET gantry covers comprise the sections and additional components that are shown in Figure 11 13 Figure 11 14 Figure 11 15 Figure 11 16 and Figure 11 17 and detailed in Table 11 11 and Table 11 12 Figure 11 13 Gantry Covers Front Side View 13 14 3 10 9 2 7 8 1 6 5 4 ...

Страница 305: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Chapter 11 Replacement Parts Page 305 Figure 11 14 Gantry Covers Side View 10 12 ...

Страница 306: ...LTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 306 Chapter 11 Replacement Parts Figure 11 15 Front View Showing Control Keys Front Display and Breathing Lights 17 18 16 6 11 ...

Страница 307: ...7224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Chapter 11 Replacement Parts Page 307 Figure 11 16 Left and Right E Stop Buttons and Source Indicators Figure 11 17 Rear E Stop Button and Source Indicator 19 20 21 22 24 23 ...

Страница 308: ...7 CT PET Tunnel 2309576 8 Front Center Cover 2309577 9 CT Left Side Cover 2309578 10 PET Left Side Cover 2309579 11 Bottom Left Side Cover 2309580 12 Rear Bottom Cover 2309581 13 PET Left Rear Cover PET Advance Cover 14 PET Right Rear Cover PET Advance Cover 15 PET Cone Cover PET Advance Cover Table 11 12 Additional Cover Components No Description of Additional Cover Components 16 Control Keys 17 ...

Страница 309: ...r Back B 2 GEMS 2316419DDW 25 Side Bumper Front A 2 GEMS 2316421DDW Embedded in cover 26a Side Bumper Front B 2 GEMS 2316422DDW Embedded in cover 26b Side Bumper Front C 2 GEMS 2320243DDW Embedded in cover 27 Back Bumper Support 2 GEMS 2316423DDW 28 Back Bumper Lock A B 2 GEMS 2316424DDW 1 each left and right 28a Lock Omega 6 GEMS 2320250DDW Embedded in cover 29 PET Top Rear Support 1 GEMS 2316425...

Страница 310: ...necessary to maintain a uniform clearance between the tunnel and the CT rotor during rotation of the rotor d Tighten the screws with Loctite red 6 Install the PET Top Cover 3 7 Move the PET from the service position to its final position and fix it to the locking brackets 8 Install the CT Top Cover 2 by connecting the front ball studs to the front cover and the vent holes to the supporting bracket...

Страница 311: ...taken to rectify the problem Problem Likely Cause Suggested Action Landmark is lost after CT just before PET Operator changed PET landmark abbreviation Did not move the table to PET position and started PET acquisition Stop the acquisition move table to PET position and restart PET acquisition CT study is not transferred correctly completely to Xeleris Network problems DICOM server problems Verify...

Страница 312: ...an the CT networking queue and if network problem persists exclude the problematic destinations from the target destinations list PET and CT images are misaligned System is misaligned Run VQC procedure Cannot set the landmark CT exam not ended End CT exam by clicking End Exam Cannot start a new CT acquisition because end exam is disabled Operator quit acquisition screen through the main menu inste...

Страница 313: ...e rhosts and operator rhosts Both files should contain the line ctuser If the line is missing add it to each file When pressing Pet Protocol button on the CT prescription view a popup window is displayed but no PET protocols are listed Incorrect NFS mount 1 Open an xTerm window on the PET 2 Login as root 3 Open the file etc dfs dfstab and confirm it contains the following line share F nfs o rw edc...

Страница 314: ...em 4 DICOM definition is wrong Follow the installation instructions to correctly define DICOM Set DICOM port to 104 and AE to Xeleris host name upper case For example If Xeleris host name is EWS then AE should be EWS Cannot transfer PET images to Xeleris 1 Network failure 2 DICOM server is down 3 Xeleris is not defined on CT system 4 DICOM definition is wrong Follow the installation instructions t...

Страница 315: ...stablished and input is received the winterm stops receiving input CU connection problem Close the current winterm Open a new one and type cu petows Enter and continue with the installation After typing cu petows in the winterm the screen does not respond to input Incorrect NULL modem cable connection Make sure that the NULL modem cable is properly connected See the Discovery LS Installation Manua...

Страница 316: ...cable connection Faulty clutch power cable connection Blown fuse in KB Box Release E Stop button Connect cable properly Connect cables properly Connect cable properly Replace fuse KB Box replacement may be necessary More details in Section 12 2 1 Base axis does not move Mechanical interference Malfunctioning locking mechanism Faulty KBPB supply cable Blown KB Box fuse Remove mechanical interferenc...

Страница 317: ...ck the 200 mA SB fuse on the KB Box chassis CAUTION DISCONNECT J1 POWER BEFORE CHECKING THE FUSE 3 If the problem persists open the KB box cover by unfastening the five screws Reconnect the power cable to J1 CAUTION DO NOT TOUCH DRIVER BOARD HIGH VOLTAGE RISK 4 Verify that the SSR red LED toggles On and Off when the Cradle Release button is pressed on the Control panel several times a If the LED t...

Страница 318: ... between Cable P N 2265683 Power 120 VAC and Cable P N 2295961 Table I F J10 EXT shown in Figure 12 3 4 Reconnect the cable 5 Check whether the clutch is engaged i e the motor shaft is not rotating freely If clutch is disengaged proceed to Section 12 2 1 6 Verify that the motor is energized a Disconnect Cable P N 2309067 and measure the voltage between Pins J4 1 and J4 2 on the KB Box side The exp...

Страница 319: ...ble P N 2309065 If the base axis continues to move replace the KB Box 12 2 5 Base Axis Does Not Stop at the Limit Switch and Collides with Mechanical Stopper If the base axis does not stop and collides with the mechanical stopper perform the following checks 1 Verify that the Pin Locking Mechanism works properly and both limit switches are pressed at CT and PET end Note Do not touch the terminal l...

Страница 320: ... clutch low 1 2 3 1 2 3 1 2 3 4 1 1 2 2 1 1 2 2 5 5 6 6 C NO etc i f j7 11 12 12 11 3 4 1 2 120 HI Neutral 3 3 Fuse 200mA Fuse 25A Fuse 5A J2 KB box harness GE 2309068 KB box harness GE 2309068 KB box harness GE 2309068 KB box harness GE 2309068 KB box harness GE 2309068 Base Axis Motor M GE 2309067 KBPB Supply GE 2309061 R1 1 2KOhm 1 2 3 4 1 1 2 2 3 3 4 4 FROM J10 CABLE TABLE I F J12 J13 J3 Pedal...

Страница 321: ...59 Power 120 VAC 2265683 2263663 2268222 2265881 2 Tilt Limit Sw LAN Secondary Base Static Table Motor J1 J3 J2 J4 GND ETC Back Plane 2301800 GND Table Base 2295969 KB Box GND 2309245 Pedals LS Clutch E 2309062 Remote Control 2309065 Base Axis Motor M KBPB Supply 2309061 Base Axis Motor R 2309058 Clutch R 2309059 Pedals L S R 2309064 To PET Gantry Chassis LAN CT PET GAN 2295968 EStop Sources CT PE...

Страница 322: ...g a E Stop activation causes clutch to be disengaged Release the E Stop button b If the problem persists proceed to Step 2 below Problem Likely Cause Suggested Action Replace if Necessary Clutch fails to engage disengage E Stop circuitry activated Blown fuse in Clutch Driver Unit CDU Faulty CDU supply cable connection Faulty clutch control signal cable connection Faulty clutch power cable connecti...

Страница 323: ...noid CMD 2338086 J18 side d Verify proper connection of Clutch Power Cable Clutch Control P N I 2340390 Clutch P N R 2309059 Clutch Control P N E 2323726 and Clutch Control P N C 2323727 3 Open the Clutch Driver Unit Figure 12 4 Clutch Driver Unit CDU 4 Verify that the SSR red LED toggles On and Off when the Cradle Release button is pressed on the control panel several times a If the LED toggles d...

Страница 324: ...221 between pins 1 4 on the Clutch Driver Unit The voltage should change from 0Vdc to 130Vdc when you press the Cradle Release button Check the cables in the path from the ETC I F J7 to the Clutch Driver Unit including the ETC Card PNs 1 2340737 2 2338086 yes no Check all the cables in the path including the Clutch PNs 1 2340390 2 2309059 3 2323726 4 2323727 Does the voltage change between 0 to 13...

Страница 325: ... check a If the solenoid of the Positioning Unit is faulty by pressing the PET Position Jog button on the control panel and b Check if the Solenoid pulls the locking mechanism down releasing the CT Position Latch If the locking mechanism does not release from the CT Position latch go to Number 3 on page 326 If the locking mechanism releases from the CT Position Latch go to Number 4 on page 327 Fig...

Страница 326: ... 1 1 2 2 1 1 4 Base Axis Motor M 2323722 Clutch Control C 2323727 Base Axis Motor E 2323720 Base Axis Motor R 2309058 Base Axis Motor I 2323724 Clutch Control E 2323726 Clutch R 2309059 Clutch Control I 2340390 1 2 3 Retractor Base Pot P 2323728 Base Pot E 2323729 J3 J2 J1 Base Drive Bulkhead to Table Bulkhead J2 Tilt Limit SW 2268222 ETC IF Base CMD Adapter 2340737 Clutch Driver Unit 120VAC N 120...

Страница 327: ... Tilt Amplifier a Check the Base Drive Enable cable 2340386 continuity between Pin 9 on the ETC J4 side and Pin 9 on the J24 cable side b Check the Table Base Elevation Tilt Amplifier See the LightSpeed Service manuals 5 If the Table Motor is turning and the Drive Belt is not moving perform the checks described in Section 12 3 1 Figure 12 8 Troubleshooting for Base Axis Movement Automated Tables B...

Страница 328: ...erminal on the Positions Microswitch side 12 3 5 Digits Disappear from Gantry Display If the digits disappear from the Gantry Display and only three small round LEDs remain this indicates an interference problem in the motion mechanism Perform the following checks 1 Verify that no non table related CT motion interference exists 2 Perform the following Base position checks a Locate the Table somewh...

Страница 329: ...it Sw LAN SECONDARY BASE GND ETC Back Plane 2301800 GND Table Base 2295969 Base Axis Motor R 2309058 Clutch R 2309059 Pedals L S R 2309064 spare To PET Gantry Chassis LAN CT PET GAN 2295968 EStop Sourc CT PET 2295 CT Gantry LAN DAS Behind To CT Front Cover Source Indicators To Cover I F STC Backpla J6 Terminator Can Bus To Cove A1 I F 2295381 2295965 Covers to ETC G a n t r y T i l t P o w e r Bra...

Страница 330: ...PERSONNEL AND DAMAGE TO EQUIPMENT Problem Likely Cause Suggested Action Replace if Necessary Clutch fails to engage disengage E Stop circuitry activated Faulty CDU supply cable connection Faulty clutch control signal cable connection Faulty clutch power cable connection Malfunction in clutch See flow chart in Figure 12 10 Base axis does not move Clutch not engaged Base stuck in CT position See flo...

Страница 331: ...urement on J221 between pins 1 4 on the Upper Connectors Bracket The voltage should change from 0Vdc to 130Vdc when you press the Cradle Release button Check the cables in the path from the ETC I F J7 to the Upper Connectors Bracket including the ETC Card PNs 1 CT Signal Harness J7 J9 to J18 yes no Check all the cables in the path including the Clutch PNs 1 2323725 2 2309059 3 2323726 4 2323727 Do...

Страница 332: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 332 Chapter 12 Troubleshooting Figure 12 11 Cradle Drive Unit Cradle Drive Unit ...

Страница 333: ...e Is E STOP circuitry activated or Cradle Release button pressed Reset the E STOP circuitry or press the Cradle Release button yes no Does a mechanical interference exist Check the locking mechanism including the solenoid functionality use the PET position Jog button on the Control Panel yes no Release the mechanical interference Check 1 The path from the ELEVATION TILT BASE Axis Amplifier to the ...

Страница 334: ...00 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 334 Chapter 12 Troubleshooting Figure 12 13 Solenoid Locking Mechanism and CT Position Latch Secondary Base CT Position Positioning Unit CT Position Latch Solenoid Locking Mechanism ...

Страница 335: ... 2 3 2 1 1 2 2 1 1 2 2 1 1 2 Base Axis Motor M 2323722 Clutch Control C 2323727 Base Axis Motor E 2323720 Base Axis Motor R 2309058 Base Axis Motor I 2323724 Clutch Control E 2323726 Clutch Control R 2309059 Clutch Control I 2323725 1 2 3 Base Pot P 2323728 Base Pot E 2323729 J3 J2 J1 Retractor to Table Bulkhead J2 Tilt Limit SW 2268222 D Type 9 pin part of table signal harness 2271256 ETC 9 9 J4 ...

Страница 336: ...BLACK LGND BLACK 1 2 4 1 2 3 FWD CCW BWD CW FWD CW BWD CCW POT WIPPER 10V REF AGND POT 1 2 3 4 5 6 1 3 4 6 1 2 1 2 1 2 1 2 1 2 4 1 2 4 1 2 3 1 2 3 2 3 J5 J240 2 2uF Cradle Pot 2326957 Cradle Bulkhead Cradle Motor Tacho 2326956 p o Cradle SSR 2326962 p o Cradle Clutch 2326954 Cradle Bridge 1 2326953 Cradle Encoder 2326955 Cradle Drive Unit Power 2326958 p o Cradle SSR 2326962 p o Cradle Clutch 2326...

Страница 337: ... on the Positions Microswitch side 12 4 5 Digits Disappear from Gantry Display If the digits disappear from the Gantry Display and only three small round LEDs remain there is an interference problem in the motion mechanism Perform the following checks 1 Verify that no nontable related CT motion interference exists 2 Perform the following Base position checks a Locate the Table somewhere between th...

Страница 338: ...first time after shutdown or restart of the CT the PET application does not open Pinging the PET Host also fails OR After pressing PET button on the Desktop or the first time after shutdown or restart of the CT the PET application does not open Pinging the PET Host also fails Incorrect NULL modem cable connection Click the Console icon on the upper left of the Scan Monitor Look for PET error messa...

Страница 339: ...CTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Appendix A Illustrated Parts Breakdown Page 339 Appendix A Illustrated Parts Breakdown A 1 System Drawings Figure A 1 Discovery LS Gantry Assembly Drawing 1 ...

Страница 340: ...2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 340 Appendix A Illustrated Parts Breakdown Figure A 2 Discovery LS Gantry Assembly Drawing 2 Figure A 3 Discovery LS Linear Bearing Assembly and Adjuster Assembly ...

Страница 341: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Appendix A Illustrated Parts Breakdown Page 341 ...

Страница 342: ...on 0080 2290802 RR Gantry SIMAT Kit 0050 2288866 Discovery LS Cables Collector 0010 2290244 Basis Casted Assembly 0020 2290245 Linear Bearing Assembly 0030 2290246 High Load Rollers Assembly 0040 2290247 Support Legs Assembly 0060 2290804 RR Gantry Mechanical Parts and Cables Packing Collector 0070 HG01041720E Linear Motion Rail L 1 720 mm with two KUE45 blocks on one rail Item Part Number Descrip...

Страница 343: ...S004016060 Screw M 16 L 60 mm Cap Head Socket Stl 12 9 Blk Ox DIN 912 0160 HS004020070 Screw M 20 L 70 mm Cap Head Socket Stl 12 9 Blk Ox Din 912 0230 HW00081200M Washer M12 ID 13 OD 37 T 3 DIN9021 0200 HW00091230M Plain Heavy Duty Washer M 12 OD 30 T 6 Stl Zinc DIN7349 0210 HW00091640M Plain Heavy Duty Washer M 16 OD 44 T 6 Stl Zinc DIN7349 0220 HW00092044M Plain Heavy Duty Washer M 20 OD 44 T 8 ...

Страница 344: ...0 HS004012030 Screw M 12 L 30 mm Cap Head 0070 HS004012040 Screw M 12 L 40 mm Cap Head 0190 HS006716040 Screw M 16 L 40 mm Hex Head Stl 10 9 Black Ox DIN 933 0170 HW00091025M Plain Heavy Duty Washer M 10 OD 25 T 4 Stl Zinc DIN7349 0180 HW00091640M Plain Heavy Duty Washer M 16 OD 44 T 6 Stl Zinc DIN7349 0220 HW00100008M Washer M 8 ID 8 4 OD 16 0090 HW00100012M Washer M 12 ID 13 0 OD 24 0230 HW00800...

Страница 345: ...et 0050 HB60000201U Ball Bearing Unit Pr Steel Pillow 0060 HB60000206U Ball Bearing Unit Pr Steel Pillow 0140 HB70020120M Retaining Ring External Shaft 0150 HB70020300M Retaining Ring External Shaft 0020 HS004004010 Screw M 4 L 10 mm Cap Head 0240 HS004006012 Screw M 6 L 12 mm Cap Head 0010 HS004006020 Screw M 6 L 20 mm Cap Head 0160 HS004008016 Screw M 8 L 16 mm Cap Head 0170 HS004010030 Screw M ...

Страница 346: ...or Bracket 0190 HF00037125I Cable Chain 16 Links Inner R 0200 HF000375200 Cable Chain 20 Links Outer R SR445075200A445075KM3 0070 HS004005016 Screw M 5 L 16 mm Cap Head 0090 HS004006010 Screw M 6 L 10 mm Cap Head 0080 HS004006020 Screw M 6 L 20 mm Cap Head 0210 HS006012040 Screw M 12 L 40 mm Hex Head 0220 HW00081200M Washer M12 ID 13 OD 37 T 3 DIN9021 0100 HW00100005M Washer M 5 ID 5 3 OD 10 0110 ...

Страница 347: ...o Calibration Type Frequency Duration 1 Reboot Daily 5 min 2 Singles Update Gain Weekly When performing position crystal map calibration After detector or ACEM board replacement 50 240 min 3 Singles Position Every 3 months After detector replacement 50 min 4 Singles Energy Every 3 months When performing position crystal map calibration 50 min 5 CTC Weekly 10 15 min 6 Blank Scan Daily 30 min 7 Norm...

Страница 348: ...o tries call Service 2 PET Blank Scan 5 minutes 1 Full QA 2 Blank Scan 3 Acquisition 5 min daily 30 min weekly 4 Accept Setup 5 Move to Scan 6 Start Scan If acquisition fails a message displays explaining the failure and giving instructions To view the error log 1 Utilities 2 Error Log Viewer 3 Message Level Programmer 4 Update Message After acquisition recon as sinogram 1 Screens 2 Recon 3 Next R...

Страница 349: ...s were done in the last two hours During activation a message box displays in the upper right of the screen In addition information about the process displays in the center of the screen 4 Fast Cals Always After Tube Warm Up 6 30 Minutes 1 Exam Rx 2 Daily Prep 3 Fast Cals 4 OK 5 Quit During calibration a message box displays with information about the process If calibration stops rare click Resume...

Страница 350: ...ate gain 5 System will select default to calibrate modules 0 55 unless otherwise specified 6 Save Raw Data No unless specified otherwise by Service 7 Accept Setup 8 OK 9 OK To view progress in the error log viewer file proceed as follows 1 Utilities 2 Error Log Viewer 3 Message Level Programmer 4 Update Modules are calibrated in four groups each group up to six attempts If calibration succeeds a m...

Страница 351: ...t Setup 7 Start scan 8 Wait until acquisition is completed 9 Full QA 10 Coincidence Timing 11 Processing 12 Select 13 Select acquisition data by date and time 14 OK 15 Calculate 16 OK To view the progress of the calibration in the Error Log File proceed as follows 1 Utilities 2 Error Log Viewer 3 Message Level Programmer 4 Update Error messages will also display in a message box that opens during ...

Страница 352: ...5 Rows 5 6 Columns 7 7 OK 8 Load 9 Select Blank Scan data by date and time 10 Select the file needed and click OK View the sinogram and decide whether to use data from this acquisition A good acquisition usually produces a homogenous sinogram Significant black stripes usually indicate an error in the acquisition or in one or more detectors If these appear call Service At the end of the weekly blan...

Страница 353: ...tivity present No 5 OK 6 Move to Scan 7 Start Scan Recon 1 Screens 2 Recon 3 Next Recon 4 Default Protocols VQC Reconstruction Protocol 5 Submit to Top VQC Processing and Software Realignment 1 PET 2 Full QA 3 Volumetric QC 4 Load 5 Select CT and PET slices that were acquired 6 OK 7 Make sure Specs are within acceptable limits 1 3 mm at center of FOV 2 0 mm at 20 cm from center of FOV 8 If Specs a...

Страница 354: ... 2 Queue 3 Archive 4 Scroll through images 5 Delete old exams or images PET Data 1 Utilities 2 Delete 3 Type of Data Patient 4 Sort by Date Time 5 Include All 6 Select all patients except from the last week 7 Select 8 Delete Selection 9 Delete Items This process deletes all data from memory except for data from the last week It is recommended to back up all data before clean up If not able to perf...

Страница 355: ...ate Gain 50 240 min Always performed after Position crystal map calibration and after detector or ACEM board replacement 4 Singles Default Gain 50 min Used to change default For normal use Singles Update gain is recommended 5 Singles Energy 50 min Always performed after Position crystal map calibration 6 CTC 10 15 min 7 Blank Scan 30 min 8 Normalization 12 18 or 24 hours depending on sources stren...

Страница 356: ...GE HEALTHCARE DIRECTION 2307224 100 REVISION 6 DISCOVERY LS SYSTEM SERVICE MANUAL Page 356 Appendix B System Calibration Quick Guide ...

Страница 357: ......

Страница 358: ... c 2007 General Electric Company GE Medical Systems a General Electric Company going to market as GE Healthcare 3000 N Grandview Boulevard Waukesha Wisconsin 53188 USA www gehealthcare com ...

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