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OEC 9800 Periodic Maintenance Procedure

22

Periodic Maintenance

Illustrated Parts

DC Power Supplies

WARNING

:

Electrical circuits inside the equipment use voltages that are capable of causing serious injury
or death from electrical shock. Use appropriate precautions.

Workstation

+ve -ve

1

2

3

4

5

6

SK2

12345678

5V ADJ

SK3

3 2 1

SK1

Figure 4. Location of PS1 - 5V Adjustment

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Содержание 9800 Periodic

Страница 1: ...hock 5 X radiation Exposure 6 Required Tools Test Equipment and Specifications 7 Tools 7 Test Equipment 7 Paint Kits 8 Miscellaneous 8 The PM Form 9 PM Form Information 9 Beginning the PM Form 9 Remov...

Страница 2: ...ng 28 Workstation Fans and Air Filters 29 C Arm Fans and Air filters 32 Functional Inspection 35 C Arm Controls 35 Workstation Controls 38 Keyboard Controls 38 Options 39 Radiographic Beam Alignment T...

Страница 3: ...c kVp Accuracy 1 mA 46 Fluoroscopic kVp Accuracy Maximum mA 47 Miscellaneous 48 Dose Area Product Calibration 48 Calculate Coeffecients 48 Calculate Rotation Calibration Constants 49 Battery Replaceme...

Страница 4: ...djustments to these values are made note them on the form in the comments section Note The numbered sections and their titles in this document correspond to those on the form Log all test equipment us...

Страница 5: ...ould be observed continuously during operation to avoid collision with people and equipment If covers are removed use extreme care when operating motorized features Do not wear loose clothing that may...

Страница 6: ...and their connections Remove metal rings and watchbands that may inadvertently come in contact with the battery terminals Severe skin burns could result if such metal articles were shorted across the...

Страница 7: ...Spline Driver 048 P N 00 900920 01 Test Equipment Oscilloscope Tektronix 2236 or equivalent Digital Volt Ohm Meter Dosimeter Keithley Model 35050 PMX II non invasive meter or equivalent C Arm Extender...

Страница 8: ...llustrated Parts Installation 12 Beam Alignment Tool P N 00 878867 01 kVp meter Lead Blocker P N 00 900041 01 Paint Kits Part Number Description 900524 11 Paint Kit Elite Gray Texture 900524 12 Paint...

Страница 9: ...ckboxes place the mouse cursor on the checkbox and click This will place an X in the checkbox For pull down menus choose the appropriate selection when they are displayed and verify that it is present...

Страница 10: ...s WARNING Electrical circuits inside the equipment use voltages that are capable of causing serious injury or death from electrical shock Use appropriate precautions 1 If the system has power applied...

Страница 11: ...OEC 9800 Periodic Maintenance Procedure 11 Service Periodic Maintenance Contents Schematics Illustrated Parts Installation Figure 1 Removing the Workstation Covers...

Страница 12: ...st and then the right cover and left cover 4 Remove the screws from the C Arm s rear cover and then loosen the 2 upper set screws on the steering shafts compression coupler so the upper shaft is disco...

Страница 13: ...the Wig Wag brake and verify that the brake prevents Wig Wag movement 2 Tighten the Flip Flop brake and verify that the Flip Flop does not move 3 Engage the C Arm Orbital brake and verify that the C A...

Страница 14: ...amage 3 Verify that the cable pusher blades have not been damaged Non Motorized Movements Wig Wag 1 Release the Wig Wag brake and verify that the forward mechanics move laterally approximately 10 20 t...

Страница 15: ...arm should rotate smoothly without vibration 2 On Super C arms release the Flip Flop brake and check C arm rotation in the following positions a Position the C arm parallel with the floor and lock the...

Страница 16: ...rticulating Arm Option 1 Verify that the articulating arm mechanics move freely and smoothly throughout the entire range of motion Adjust the articulating arm s friction brake if necessary 2 Verify th...

Страница 17: ...ect cable verify that the cable C Arm connector and pins are not damaged Verify the LEMO connector strain relief is tightened securely Ground Continuity WARNING Do not perform this continuity test wit...

Страница 18: ...20 21 22 23 24 J1 Figure 3 J1 Interconnect Cable Pin out 3 Connect the Interconnect Cable to the C Arm and verify continuity between the following From To Spec C Arm Second Earth Ground Bottom left be...

Страница 19: ...y clockwise 3 Press the power switch located on the Workstation Incoming Line Regulation Line Regulation 1 If the system is equipped with a 100 127 VAC power cord measure the voltage from the BRN wire...

Страница 20: ...to 128 0 0 125 0 125 Table 2 200 250 VAC If the primary of T1 voltage measures between The WHT BLU wire should be connected to Primary 1 The BRN wire should be connected to Primary 1 The BLU wire shou...

Страница 21: ...Vl Vl 6 If the results above do not fall within the range of 0 15 inform the hospital administration that they will need to correct this problem This problem results in a violation of a provision of...

Страница 22: ...Parts Installation DC Power Supplies WARNING Electrical circuits inside the equipment use voltages that are capable of causing serious injury or death from electrical shock Use appropriate precautions...

Страница 23: ...Tolerance TP1 TP2 PS1 5v 5 1 0 1 TP1 TP3 3 3 0 1 TP1 TP4 12 0 4 TP1 TP5 12 0 4 2 Verify that the LEDs on the DC Distribution PCB are ON LED Voltage Location DS1 3 3 DC Distribution PCB Regulator DS2...

Страница 24: ...oller PCB DS11 3 3 Display Controller PCB DS12 3 3 CINE Bridge PCB DS13 5 0 CINE Bridge PCB DS14 5 0 Control Panel Processor DS15 12 0 Control Panel Processor 3 On the Image Processor PCB P N 879018 v...

Страница 25: ...5 0 TB4 5 E3 80 1 N A TB4 3 TB4 9 230 10 0 Cine Enclosure Option 1 If the CINE 4 Disk Enclosure is installed remove the enclosure cover and measure the power supply test points on the backplane witho...

Страница 26: ...d power panel 1 Remove the screw holding the power panel door in place and swing the door open on its hinge Verify the following voltages on connector J2 and record the values on the PM Form GND to Ad...

Страница 27: ...on the following power supply test points and record the values on the PM Form Note The voltage designations on the Power Supply PCB are incorrect Adjust the voltages to the value described in the fo...

Страница 28: ...ge indicates 160 Volts verify that the voltage bargraph LED is functioning by measuring across the battery terminal with a DMM while making an exposure If the batteries measure less than 160 Volts tro...

Страница 29: ...cedure 29 Service Periodic Maintenance Contents Schematics Illustrated Parts Installation Workstation Fans and Air Filters ELECTRONIC BOX FANS 1 EACH SIDE MONITOR FANS 1 EACH SIDE Figure 5 Location of...

Страница 30: ...rocedure 30 Service Periodic Maintenance Contents Schematics Illustrated Parts Installation MONITOR FILTER 1 POWER SUPPLY FAN 1 CPU FAN REAR WORKSTATION FAN FILTER ON REAR COVER Figure 6 Location of W...

Страница 31: ...tained by brackets on both sides of the Workstation Remove the brackets first then remove the air filters and clean the filters 3 Insert the air filters and reinstall the retaining brackets System Pow...

Страница 32: ...e Periodic Maintenance Contents Schematics Illustrated Parts Installation C Arm Fans and Air filters The C Arm has fans in the following locations POWER SUPPLY FAN X RAY TUBE COOLING FAN option HV TAN...

Страница 33: ...witch if not already switched off then remove the HV cable cover from the X ray tube if not already removed You may want to disconnect the fan wires for easier access to the inside of the cover Note F...

Страница 34: ...nance Contents Schematics Illustrated Parts Installation AIR FILTER HV CABLE COVER STANDARD C ARM AIR FILTER AIR FILTER Flat View AIR FILTER Flat View SIDE FILTER BOTTOM FILTER HV CABLE COVER SUPER C...

Страница 35: ...size key to change the field size NORM MAG1 and MAG2 3 Using the Converging Line pairs millimeter lp mm tool on the Image Intensifier verify the resolution in lp mm is equal to or greater than the va...

Страница 36: ...as portrayed by the graphical icon c Press the COLLIMATOR LEAF ROTATE switch and verify that a graphical icon two lines displays on the Workstation monitor and that the icon rotates as the collimator...

Страница 37: ...fy that the X ray indicator flashes at approximately twice the rate as the previous step e Verify that the mA is driven higher than the Fluoro limit of 5 mA 14 Select DIGITAL SPOT via the Workstation...

Страница 38: ...kVp 300 mAs shot and verify that three beeps are heard after the exposure and no errors are displayed Workstation Controls WARNING Steps within this procedure produce X rays Take appropriate precautio...

Страница 39: ...selects the optimum values of contrast and brightness 8 Verify the SWAP function exchanges images from the left and right monitors 9 Verify the SAVE function saves the image on the left monitor to th...

Страница 40: ...on IR Transmitter test 1 Press the Remote Control Screen key and verify that the remote control screen displays on the monitor 2 Use the cursor control to move the cursor to an executable button and p...

Страница 41: ...be printed to the thermal printer DICOM 1 Make electrical connections Refer to the Operator Manual Supplement if necessary 2 Verify images can be archived and printed via the DICOM interface 3 Verify...

Страница 42: ...am Alignment Tool 4 Make the following four exposures on one sheet of film 5 Select Manual Fluoro Normal field and then Film mode Take a 55 KVp 1 5 mAs exposure 6 Select Manual Fluoro MAG 1 field and...

Страница 43: ...he digital mask on the Workstation 3 Calculate the absolute value of the difference between the film and Workstation X axis values XFilm XFluoro XDiff Verify that the difference recorded is less than...

Страница 44: ...eam Alignment Test 2 Make a Normal mode Fluoro exposure Using the scale on the beam alignment tool measure the X and Y diameters XFluoro and YFluoro displayed within the digital mask on the Workstatio...

Страница 45: ...center of the X ray beam This measurement is used to represent the average thickness of patient anatomy Refer to the 9800 System Service CD ROM for directions on performing the Entrance Exposure calib...

Страница 46: ...5 or 3 kVp greater of the two Radiographic kVp Accuracy 50 mas 1 Enter 50 mAs exposure Take exposures at 60 90 and 120 kVp and record the results on the PM form Radiographic kVp Accuracy 200 mas 1 Ent...

Страница 47: ...riodic Maintenance Contents Schematics Illustrated Parts Installation Fluoroscopic kVp Accuracy Maximum mA 1 Set the mA technique to the maximum possible setting for each kVp value Take exposures at 6...

Страница 48: ...e and turn on the power to the monitor 4 Connect the external keyboard to the keyboard connector on the Workstation s rear panel 5 Connect the RUT serial cable open RUT connect to the 9800 system and...

Страница 49: ...mA 60 kVp 4 mA 80 kVp 3 mA 100 kVp 2 mA 120 kVp 2 mA 14 Once you have entered all six Dosimeter readings press the Calculate Coefficients command button 15 The A B and C coefficients will be calculate...

Страница 50: ...ddle Holder s retaining ring insert the ion chamber and then reinstall the retaining ring 3 Attach the DAP Paddle Holder to the Collimator cover The DAP Paddle Holder attaches to the round circular po...

Страница 51: ...ation button on the C Arm Control Panel and drive the collimator leaf to the 180 degree position Verify on the external monitor that the position is 180 1 14 Take an X ray exposure 15 Read the Dosimet...

Страница 52: ...cement PCB Batteries 1 Replace the X ray Controller PCB Battery Coin type CR2032 3 0 Volt Lithium P N 74 122905 00 2 Replace the Workstation Motherboard PCB Battery or PC Card battery Coin type CR2032...

Страница 53: ...the Power switch in the off position 2 Loosen the four knobs securing the cover on the Navigation Computer and remove the cover 3 Disconnect the battery cable 4 Loosen the 2 knurled knobs behind the U...

Страница 54: ...Be sure the wheels are positioned forward straight and the set screw heads face directly front when inserted in the couplers before securing the couplers to the shafts If not installed in this front...

Страница 55: ...that the wheels move 90 to the left and right 2 Place the C Arm s wheel brake in the neutral flat position Push the C Arm slowly and verify that when the steering handle is turned the C Arm turns 3 Pl...

Страница 56: ...rm the following 1 Save the PM Form to your hard disk using the serial number of the 9800 system if you have not already done so 2 Print the Form and sign it 3 Obtain the customer s signature 4 Make t...

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