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General

1 - 5

Siemens-Elema AB

SPR8-215.898.01

Page 5 of 6

MOBILETT Plus / - E/ - M

Solna, Sweden

Rev. 05

01.02

SPS-UD

•

Measure the residual voltage at test points CAPPOS and CAPNEG on board D7 (Fig. 2).
The voltage measured must be less than 10 V.

- Make sure that the correct measurement range is set on the measurement device.
- Connect the measurement device to CAPPOS and CAPNEG.
- Switch S10 off. Connect the mains cable and switch the system ON.
- Check whether the voltage increases.
- Switch the system OFF, disconnect the mains cable and switch S10 on.
- Check whether the voltage decreases.
- If the measurement device indicates no voltage, check the measurement device.
- Measure the voltage for the capacitor bank at the bus bar. (Fig. 3).

•

Only use insulated tools when pulling out the capacitor units.

If the voltage measured between CAPPOS and CAPNEG is 0V, the
measurement device could be defective or the wires between the
CAPPOS and CAPNEG test points on the capacitor bank could be
damaged.

The capacitors could still be charged.

In this case, proceed as follows:

Fig. 3

Fig. 4

If the charging/discharging does not function, the capacitor bank
must be considered “charged”.

This means a risk of high voltage.

Use caution when performing measurements at the bus bar of the
capacitor bank. Use only the specified measurement devices
(350 V DC). If one of the fuses in the capacitor series has blown
out, this series must be considered fully charged.

WARNING

WARNUNG

WARNING

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Содержание MOBILETT Plus

Страница 1: ... or use of this document or its contents is not permitted without express written authority Offenders will be liable for damages All rights including rights created by patent grant or registration of a utility model _or_ design _are_ reserved SP Service Instructions From Serial No MOBILETT Plus 3040 MOBILETT Plus E 10810 MOBILETT Plus M 20001 66 08 660 ...

Страница 2: ...ls Disclaimer The installation and service of equipment described herein is to be performed by qualified personnel who are employed by Siemens or one of its affiliates or who are otherwise authorized by Siemens or one of its affiliates to provide such services Assemblers and other persons who are not employed by or otherwise directly affiliated with or autho rized by Siemens or one of its affiliat...

Страница 3: ...__________________________________________ 5 1 Entering service mode 5 1 Selecting test programs with the kV buttons 5 1 Error messages in service mode 5 1 List of test programs available in service mode 5 2 P01 Filament test 5 2 P02 Rotation test if the FW version is higher than 1 4 or 1 4E 5 2 P02 Rotation test if the FW version is lower than 1 5 or 1 5E 5 3 P03 Capacitor bank and charging test ...

Страница 4: ...________10 1 Adjusting the arm system 10 1 Parallelism 10 1 Counterbalance 10 3 Adjusting the friction linings 10 4 Replacing the spring pack 10 7 Adjustment and replacement of the turn plate 10 11 Replacement of the single tank 10 14 Replacement of the support arm cable harness 10 18 Adjustment of the hand parking brake 10 22 Replacing the supporting wheels 10 23 Replacing the friction linings 10...

Страница 5: ...s marked with this symbol have been included in the Siemens Training Video part of the self study packet which can be ordered through Siemens customer service DANGER indicates when there is an immediate danger that leads to death or serious physical injury WARNING indicates a risk of danger that may lead to death or to serious physical injury CAUTION used with the safety alert symbol indicates a r...

Страница 6: ... oscilloscope with 2 5 accuracy Torque wrench 1 Nm 3 Nm Spring scale Lux meter Rope Pulley block Adjustment device for belt tension part No 65 64 301 Lubricants 1 All purpose grease PD 2 Viscogen oil Wiring Diagram RXR8 215 051 Function description SPR8 215 850 Installation Instruction Installation of remote exposure switch system SPR8 220 031 02 All tools measurement and auxiliary devices with th...

Страница 7: ... 0107 or country specific regulations Remove or install boards only when the generator is switched OFF Adhere to the ESD guidelines Checks and adjustments performed with radiation ON are identified by the radiation warning symbol During these types of adjustments radiation protective clothing must be worn Never work with the system open if the capacitor is charging or has just charged The capacito...

Страница 8: ... Wait 5 minutes then remove the left right and front covers Fig 1 Fig 2 Comply with the information given in this section before opening the system Never work with the system open if the capacitor is charging or has just been charged The capacitor bank may still be charged even if the system is switched OFF and the line voltage cable is disconnected Life threatening electric shock hazard exists Co...

Страница 9: ... check the measurement device Measure the voltage for the capacitor bank at the bus bar Fig 3 Only use insulated tools when pulling out the capacitor units If the voltage measured between CAPPOS and CAPNEG is 0V the measurement device could be defective or the wires between the CAPPOS and CAPNEG test points on the capacitor bank could be damaged The capacitors could still be charged In this case p...

Страница 10: ...e the capacitor bank voltage on the bus bar Fig 3 If one of the capacitor series of the capacitor bank is still charged U 10 V it can be discharged via resistor R103 on D7 Connect the voltmeter to the measurement points parallel to the insulated cables which will be used to discharge the capacitor bank U 10 V Fig 4 ...

Страница 11: ... filament heating value for the selected kV see section P07 Read out filament values from battery backed RAM Compare the value with the value in the delivery protocol If the difference is large make a new adaptation see section P10 Fast adaptation Err 3 in combination with Err 21 Err 22 Check the measuring point FIL_VAL on D1 see page 160 and page 110 CAL 13 Check the 60 V supply voltage on D4 see...

Страница 12: ...page 141 For a large deviation Check the filament value see section P07 Read out filament values from battery backed RAM and compare it with the values in the delivery protocol If the difference is large a new adaptation is needed see section P10 Fast adaptation See also section Error diagnosis HT and single tank Check the connection K9 between D1 and H1 single tank and the connection between D1 a...

Страница 13: ...enance on the generator a defective connection may be the cause Check the connections K64 1 and K64 2 on D13 and the K64 connection to the single tank see page 140 Check cables K9 and K8 see page 140 Check main fuse U101 see page 140 Check the trigger pulses INV A and INV B to the inverter page 140 Check the capacitance in the capacitor bank see section P03 Capacitor bank and charging test Check t...

Страница 14: ...page 140 during the next test Activate the radiation release switch to the first level preparation and listen for the anode to start up refer to page 150 Check that the following supply voltages are present on D4 100 V 15 V 5 V DC refer to page 150 Check that the trigger pulses are present at ROT when the anode is accelerated refer to page 150 Check that the measuring signals ROT_VAL on D4 and ROT...

Страница 15: ...ngle tank see section Error diagnosis HT and single tank Err 9 During exposure When measuring the kV value a large high tension asym metry is detected Normally the kV value is symmetric around ground The acceptable devi ation is 19 5 kV This corresponds to HTD 2 5 V 0 5 V Intermittent measurement cables or defective single tank Check the measurement cable K9 between D1 and the single tank refer to...

Страница 16: ...e measurement circuit for the temperature refer to page 140 contact K9 CAL 12 During preparation Stored filament value is lost Check the voltage in the backup battery refer to page 110 The battery should have a voltage 2 8 V Check that the battery jumper is securely attached see page 110 Make a new adaptation see section P10 Fast adaptation CAL 13 Generator ON The voltage supply 60 V DC to the fil...

Страница 17: ...the Buck converter is short circuited the current will flow until fuse U8 on D8 blows Replace the D7 charging unit USE 15 During preparation The exposure switch has been in prepara tion position longer than 20 s The user has kept the exposure release switch in preparation position longer than 20 s after the Ready light indicator indicates that preparation is ready anode speed is correct If the fau...

Страница 18: ...that the internal residual voltage in the modules was too high when they were connected to each other This caused the fuse to blow refer to page 130 Err 17 Generator ON The capacitors are charging too slowly 1 4 V s Check that S10 on D7 is switched off If the error appears after working on the capacitor bank check the cabling and the connections to the capacitor bank refer to page 130 Check fuse U...

Страница 19: ...lamp glows The leakage current in the capacitor bank is too large The measurement is performed dur ing charging at 150 V DC Charging is interrupted for 5 s If the voltage drops more than 1 6 V a message will be displayed See also Err 17 In cases where the generator has not been operated for several months the leakage current in the capacitors has increased Use the formation program P06 refer to se...

Страница 20: ...connec tions k11 and k1 refer to page 140 Err 21 Generator ON The measured value of the stand by fila ment current has exceeded the limit FIL_VAL on D1 shall be within 0 16 2 5 V when the filament is in stand by mode Check the supply voltages on D4 60 V 15 V and 5 V refer to page 160 Check the pulses at measurement point FIL on D4 refer to page 160 Check the value in FIL_VAL on D1 refer to page 16...

Страница 21: ...d 5 V refer to page 160 Check the connection between D4 and the filament transformer K60 refer to page 160 Check the trigger pulses in measurement point FIL on D4 refer to page 160 Check the value in FIL_VAL on D1 The value must be stabile in stand by filament After change over to preparation the value should stabilize again Refer also to the section P01 Filament test Dis played messages Mode of o...

Страница 22: ... inverter current refer to the section Error diagnosis HT and single tank The X ray tube may have arced during the exposure If the first exposure after a long interval is an exposure with high kV values tube arcs can occur The unit has to be started with several exposures at high mAs values The kV values selected should be from 40 kV increased to 133 kV Refer also to the section Error diagnosis HT...

Страница 23: ...ackup battery with battery jumper are okay replace D1 Refer to page 110 and 140 USE 25 Generator ON The calculated load of the anode target has been lost The value is lost from CMOS mem ory See also CAL 31 Check all supply voltages on D1 see page 110 Check that the battery jumper is properly mounted and that the vol tage in the backup battery is 2 8 V refer to page 110 A tube arcing has caused a t...

Страница 24: ...sage CAL 26 occurs repeatedly or if the message can not be acknowledged by pressing kV or switching the unit OFF and ON replace D1 CAL 27 Generator ON during start up Error in ROM mem ory Check sum is not correct Check that all supply voltages on D1 are present refer to page 110 The ROM containing the program is defective Replace the software IC s I72 I66 and I74 on D1 refer to page 110 If the err...

Страница 25: ... should be replaced Enter the cause and the error message CAL 28 in the service protocol CAL 29 Generator ON The single tank is not correctly con nected The single tank is missing or the cable harness is incorrectly connected Check that connection K9 on D1 is connected Check for possible damage in the main cable harness between D1 and the single tank Measure K9 13 4 and move the arm and single tan...

Страница 26: ...s disturbed the system If the USE 30 message occurs repeatedly the single tank must be checked according to Error diagnosis HT and single tank If the function of the single tank is OK and USE 30 appears repeatedly replace D1 If necessary reinstall the customer kV and mAs limit values Refer to the section P14 Number of kV steps and upper kV limit and P15 Upper mAs limit CAL 31 Generator ON The volt...

Страница 27: ...ed for the customer All mes sages are stored in the error memory Using section P08 Display of message protocol display and record the messages contained in the error memory Using the error message list try to determine which module board etc is generating the messages Err 35 Generator ON Temporary fault in the program execu tion which was cor rected by the watch dog Check the supply voltages on D1...

Страница 28: ...ted with several exposures at high mAs values The kV values selected should be from 40 kV increased to 133 kV Refer also to Error diagnosis HT and single tank Err 37 The mes sage is not shown to the opera tor This message can only be read out from the mes sage his tory P08 Generator ON The error message history is lost It is indicated with 0 s and Err 37 Check the supply voltage on D1 see page 110...

Страница 29: ...r statistics are lost See Err 37 If Err 38 is the only message in the history memory it will not be necessary to replace D1 These statistics are only used in the factory PC NodE The switch S 1 on board D1 is set in the wrong position This mode is only used at the factory To quit this mode put switch S1 2 in the OFF position Dis played messages Mode of operation Cause Possible reason See section Mo...

Страница 30: ...Vactual value results in decreased heating value negative correction 2 Change in generator output This may occur when exchanging the inverter or the single tank In each case the heating values must be readjusted and recorded refer to P10 and P07 in the service program a b If the generator output is increased this results in an increase in heating value If the generator output decreases the heating...

Страница 31: ...ration level held by the user 20 s Err 16 Capacitor bank charging too fast Err 17 Capacitor bank charging too slow Err 18 Capacitor voltage charging too slowly CAL 19 Leakage current too high in the capacitor USE 20 Radiation release button was released during the exposure Err 21 Filament current incorrect for stand by Err 22 Filament current incorrect for exposure Err 23 During exposure the main ...

Страница 32: ...iemens Elema AB Rev 05 01 02 SPS UD Solna Sweden 2 22 Display messages List of messages in the error memory 2 Err 33 Signal fault during program execution Err 36 Overcurrent in HT inverter Err 37 Error memory contents lost Err 38 Error statistics lost ...

Страница 33: ... in the sec tion Troubleshooting instructions Power plug inserted MOBILETT Plus MOBILETT Plus E MOBILETT Plus M ON Display illuminated kV and mAs buttons OK Collimator lamp can be turned ON OFF Turn plate can be activated deactivated Green Ready light indicator is ON Voltage supply Program run see section P04 Display led and buzzer test Connections Button function Defective lamp Cables Fuse Lamp b...

Страница 34: ...posure Exposure interrupted Correct density MOBILETT Plus MOBILETT Plus E MOBILETT Plus M OK Yes Yes Yes Yes No Yes Exposure release switch cables and connections Err 6 see P02 Rotation test Remote control option Exposure release switch cables and connections Displayed message Remote control option kV mAs selection Exposure time Heating value Darkroom No USE 39 Err 6 Err 6 No No No Displayed messa...

Страница 35: ...age supply on D4 Check the measuring point LAMPON If there is no signal check k5 k9 k3 and k2 If a click is heard check the voltage supply in the lamp bracket refer to the wiring diagram page 180 MOBILETT Plus and Plus M only D Press the turn plate button and check if a click is heard from MR1 and MR2 refer to the wiring diagram page 170 If a click is heard check the voltage in K68 1 2 and compare...

Страница 36: ...MOBILETT Plus E M SPR8 215 898 01 Page 2 of 2 Siemens Elema AB Rev 05 01 02 SPS UD Solna Sweden 4 2 Troubleshooting instructions This page intentionally left blank ...

Страница 37: ...layed pressing the kV button will show the program version again and so on Pressing the kV button will display the previous test program The lamp button has a toggling function and is used both to start and stop the displayed test program For exam ple after the lamp button has been pressed the formation of the capacitor bank starts and the following is shown on the display The test program can be ...

Страница 38: ...r 1 4E 5 Wiring diagram X037E page 150 Accelerates the anode with a 160 Hz control signal during two seconds After this first acceleration the speed is measured and if necessary a second acceleration of two sec onds is made When the correct speed is reached the anode will rotate freely for 20 sec onds or until the rotation frequency is below 142 Hz before it is braked during 9 seconds to a stop An...

Страница 39: ...ll rotate freely for 10 seconds before it is braked during 7 seconds to a stop An error message will be displayed after two unsuccessful attempts to accelerate the anode When the test is activated the display shows After acceleration the display shows the actual rotation frequency If an error is detected the test program will be aborted an audible beep will be signaled and a message will be displa...

Страница 40: ...will be aborted An audible beep will be signaled and a message will be displayed If the test ends successfully the display will show Duration Approx 1 5 minutes P04 Display led and buzzer test 5 Wiring diagram X037E page 120 When the test starts both displays are dark Then the displays lights in sequence begin ning with the outermost character The following characters are lit in the same way until...

Страница 41: ...e voltage value is increases The charging sequence increases as follows A P04 Display test Visually check that the display and the LED s lights and lis ten for the buzzer to sound B P01 Filament test If the test ends successfully a message will be displayed for 4 seconds FIL PASS The filament part of the test is passed C P02 Rotation test During the test the actual rotation frequency is displayed ...

Страница 42: ...for MOBILETT Plus E The kV is changed in steps by briefly depressing the kV or kV buttons By keeping the buttons pressed the kV value will be continuously stepped up or down The generator filament values are self adjusted to produce a kV value with minimum devi ation If the software was optimized a filament value for a specific kV value was indicated with the letter A in the extreme right position...

Страница 43: ...s the exposure button every time the ready light indicator lights The program starts at a low kV value and when the actual value is stable it increases to the next kV value automatically Example During the adaptation some messages may appear most of these can be ignored since the generator has incorrect filament values However check every message against the message list and confirm them by pressi...

Страница 44: ...the FW version is lower than or the same as 1 5 or 1 5E Wiring diagram X037E page 140 The program is activated with the lamp button Wait for the ready light indicator When the exposure switch is pressed the test program makes an exposure without fil ament heating and rotation The exposure will be approximately on 90 kV and and the duration is 10 ms During the test the display shows To repeat the e...

Страница 45: ... number of steps In this program it is possible to choose between a fixed number of 25 or 49 steps for MOBILETT Plus Plus M and 24 or 47 steps for MOBILETT Plus E The number of steps corresponds to Siemens point scale with integer points or half integer The factory setting is 25 steps for MOBILETT Plus Plus M and 24 steps for MOBILETT Plus E To change or check the valid setting activate the progra...

Страница 46: ...te the program with the lamp button The display shows the selected mAs limit change with mAs or mAs buttons Example Press the lamp button to store and currently displayed values and to exit P15 P16 Show the exposure counter 5 This program is activated by the lamp button and shows the actual number of exposures Example 1 Example 2 Exit the program by pressing the lamp button Always check that the v...

Страница 47: ...cannot be displayed check the tube current at measurement point MAPOS on D1 Check the inverter current with an external current transformer Measure HTPOS and HTNEG on D1 Record the fall times 90 10 of HT high voltage levels and whether the exposure was interrupted prematurely Compare with fig 2 HT signal inverter and single tank normal Measure the inverter current using an external current transfo...

Страница 48: ... less than 100 ohms the inverter is defective transistors in the modules are bad The inverter current is always measured using a separate current transformer between the inverter and single tank The procedure is described in the training video Measuring the falling edge of the high voltage in the measurement point HT on D1 board Long falling edge approx 2 ms Measuring the inverter current Separate...

Страница 49: ... normal High speed HT and HT discharges Figure 6 Defective tube Defective high voltage capacitor Arcing between plus and minus side Replace single tank Abnormal inverter current e g triangle shaped HT dis charges Figures 9 and 10 Defective high voltage transformer Defective diode strip Defective tube Replace single tank Abnormal inverter current e g asymmetric Figure 10 Defective inverter Replace ...

Страница 50: ... AB Rev 05 01 02 SPS UD Solna Sweden 6 4 HT and single tank error diagnosis Exposure values 90 kV 2 0 mAs HTPEAK 20 kV div Inverter current 100 A div Fig 1 HTPEAK and inverter current inverter and single tank normal HTPEAK on D1 Inverter current Inverter current ...

Страница 51: ... Page 5 of 12 MOBILETT Plus E M Solna Sweden Rev 05 01 02 SPS UD Exposure values 40 kV 5 mAs HT 8 kV div 200 mV div Iinverter single tank 100 A div only the end of the exposure is shown Fig 2 HT and inverter current inverter and single tank normal Inverter current HT on D1 ...

Страница 52: ...01 02 SPS UD Solna Sweden 6 6 HT and single tank error diagnosis Exposure values 90 kV 5 mAs HT 20 kV div 500 mV div Iinverter single tank 50 A div only the end of the exposure is shown Fig 3 HT and inverter current inverter and single tank normal HT on D1 Inverter current ...

Страница 53: ...1 Page 7 of 12 MOBILETT Plus E M Solna Sweden Rev 05 01 02 SPS UD Exposure values 33 kV 5 mAs HT 40 kV div 1 V div Iinverter single tank 100 A div only the end of the exposure is shown Fig 4 HT and inverter current inverter and single tank normal HT on D1 Inverter current ...

Страница 54: ...ema AB Rev 05 01 02 SPS UD Solna Sweden 6 8 HT and single tank error diagnosis Exposure values 133 kV 5 mAs HTPOS HTNEG 2 V div 20 kV div 200 µs div only the end of the exposure is shown Fig 5 HT signal inverter and single tank normal HTPOS on D1 HTNEG on D1 ...

Страница 55: ... 9 of 12 MOBILETT Plus E M Solna Sweden Rev 05 01 02 SPS UD Exposure values 133 kV 5 mAs HTPOS HTNEG 2 V div 20 kV div 200 µs div only the end of the exposure is shown Fig 6 HT signal Arcing between plus and minus side Defective tube Replace single tank HTPOS on D1 HTNEG on D1 ...

Страница 56: ... Solna Sweden 6 10 HT and single tank error diagnosis Exposure values 133 kV 5 mAs HTPOS HTNEG 2 V div 20 kV div 100 µs div only the end of the exposure is shown Fig 7 HT signal high speed HTNEG discharges Defective tube filament transformer wires to the cathode HTPOS on D1 HTNEG on D1 ...

Страница 57: ...n Rev 05 01 02 SPS UD CH1 20 mV div 100 A div 10 µs div Inverter current CH2 500 mV div 20 kV div HT CH1 Inverter current 50 A div 10 µs div Fig 8 High speed HT discharges Defective tube transformer capacitor Fig 9 Abnormal inverter current Defective single tank CH1 CH2 Inverter current HTPOS on D1 T Inverter current ...

Страница 58: ...n 6 12 HT and single tank error diagnosis CH1 Inverter current 50 A div 20 µs div CH1 I V div 40 kV div 20 µs div HT CH2 100 A div Inverter current Fig 10 Abnormal inverter current Defective inverter Fig 11 Abnormal inverter current Defective inverter Inverter current T HT on D1 Inverter current T ...

Страница 59: ... malfunctions the internal series fuse will blow and the capacitor series will be disconnected Depending on the tolerance in the capacitors the generator will display a message If a large positive tolerance is present in the capacitors the balance of the capacitor bank will be able to maintain the total capacitance above the lower limit Both the capacitor and the fuse must be replaced according to...

Страница 60: ... the voltage is measured to 0 V the measuring device could be defective or the cables between the capacitor bank and CAPPOS CAPNEG could be damaged In this case proceed as described in items a e below to avoid personal injury Fig 1 Fig 2 a Connect the power plug b Connect the measurement device c Switch on S10 on D7 Check whether the voltage increases d Switch off S10 Check whether the voltage dec...

Страница 61: ...5 01 02 SPS UD Measure the voltage between the and bars the voltage must be less than 10 V Note the cable connections to the capacitor bank Fig 3 for MOBILETT Plus Plus M and Fig 4 for MOBILETT Plus E Fig 3 MOBILETT Plus Plus M Fig 4 MOBILETT Plus E ll MOB00494 bar neg bar pos MOB00468 bar neg bar pos ...

Страница 62: ... for MOBILETT Plus Plus M and Fig 6 for MOBILETT Plus E Remove the capacitor module Fig 5 MOBILETT Plus Plus M Fig 6 MOBILETT Plus E Fig 7 Residual voltage up to 353 VDC may still be present Risk of high voltage Use insulated tools and do not touch bars that may contain volt age Fig 7 MOB00496 bar pos bar neg MOB00495 bar pos bar neg WARNING ...

Страница 63: ...ne the capacitor must be replaced If you cannot determine the error visually perform tests A D on the capacitor series with the blown fuse Fig 8 Electric shock hazard Risk for physical injury Prior to installing a new capacitor or a new fuse ensure that the voltage difference between capacitor series or capacitor modules does not exceed 2 volts A Remove the fuse and bar in the defective series Wai...

Страница 64: ...Tighten all screws and nuts on the upper side of the capacitor module with a torque of 3 Nm and all screws and nuts on the under side with a torque of 1 Nm Reattach the left and right and rear covers Connect the power plug and switch off S10 on D7 Switch on S 1 1 on D1 Read the information about the formation program P06 in section P06 Capacitor formation if you have replaced one or more capacitor...

Страница 65: ...ter Read out the mAs limit refer to the section P15 upper mAs limit Read out the kV step and limit refer to the section P14 Number of kV steps and upper kV limit Loosen the screws to the system upper cover and remove it Loosen the screws and remove the protection plate Locate the battery refer to the wiring diagram page 110 To avoid damage to components or assemblies ensure compliance with ESD gui...

Страница 66: ... ON S 1 1 on D1 Perform the adaptation according to section P10 Fast adaptation Set the selected mAs limit refer to the section P15 Upper mAs limit Set the selected kV step and limit refer to the section P14 Number of kV steps and upper kV limit Read out the exposure counter refer to the section P16 Show the exposure counter Switch off S 1 1 on D1 OFF Reattach the system upper cover Make an exposu...

Страница 67: ...he cassette compartment Remove the four two on each side screws that fixes the cable winder assembly pos 1 Fig 2 Pull out the cable winder assembly approximately 10 cm Disconnect main switch plug K52 pos 1 Fig 3 Fig 2 Fig 3 Sharp edge The brake handle could be damaged Lock the brake handle otherwise it is damaged by the sharp upper edge of the cable winder assembly MOB00618 1 MOB00619 1 CAUTION ...

Страница 68: ...ble ties pos 1 Fig 4 Remove four screws and four nuts pos 2 Fig 4 and Y plate pos 3 Fig 4 Disconnect cable from upper plate pos 1 Fig 5 Remove the distance ring pos 2 Fig 5 from the axle Loose the brake carefully to loose the tension of the cable winder spring Remove securing screw pos 1 Fig 7 Pull out the cable winder Fig 4 Fig 5 MOB00620 2 1 3 4 MOB00621 1 2 3 3 ...

Страница 69: ...er has to be replaced go to B If mains cable has to be replaced Remove four screws pos 3 Fig 5 Remove connection plate and disconnect the mains cable pos 1 Fig 6 Install new mains cable and connection plate B Reinstall ring cable stop and plug Reinstall cable winder Reinstall the securing screw pos 1 Fig 7 Fig 6 Fig 7 Wind the mains cable to the cable winder without any play 1 MOB00622 1 NOTE ...

Страница 70: ...nder spring Repeat that six times Reinstall upper plate with distance ring plastic role and Y plate Pull out the cable completely Test cable winder and brake function Reinstallation is performed in the reverse order Fig 8 The cable winder should not rewind by itself The brake force is adjusted via right screw nut clockwise stronger pos 1 Fig 8 nut counterclockwise softer MOB00620 1 NOTE ...

Страница 71: ...collimator lamp by loosening not removing the screws marked B one turn Do not adjust screws C D or E Fig 2 Remove the defective lamp and replace it with a new lamp Fig 3 Do not touch the bulb with bare fingers See list of spare parts Reinstall the protective plate Tighten the screws marked B Fig 1 Fig 2 Fig 3 Equipment required Lux meter 75 75 75 75 90 90 75 75 75 75 60 60 45 45 30 30 15 15 0 15 1...

Страница 72: ...easurements made in the approximate center of each quadrant of the light field Fig 4 If the illumination is less than 180 lux check the lamp supply Refer to wiring diagram X037E page 180 Light field relative to the X ray field 9 Load a 35 x 35 cm 14 x 14 cassette with film Put the cassette on a table or a similar surface Fig 4 Fig 5 Fig 6 Equipment required Lux meter Equipment required Cassette X ...

Страница 73: ... mAs on the control panel Release an exposure Develop the film and measure the deviation between the light and the radiation fields Acceptable deviation 1 7 of SID Fig 6 If the deviation is more than 1 7 adjust with the screws marked C and D Fig 2 to move the light field closer to the radiation field Repeat the test with a new exposure If necessary adjust again until the deviation between the ligh...

Страница 74: ... and repairs on the collimator Replacing the collimator 9 Switch off the unit and disconnect the power plug Turn the single tank so that the collimator is facing upwards Fig 7 Secure the arm and the single tank with a rope Fig 7 Remove covers A and B Remove collimator cover C Fig 7 Equipment required Rope C A B ...

Страница 75: ...tion terminal board D Fig 8 If there are cable ties cut them Fig 8 Remove the collimator by loosening the four screws E Fig 8 Reserve the hardware Install the new collimator Center the rotary flange so that the screws marked E are centered in the grooves before tightening Connect the wires to connection terminal board D Fig 8 D E E E E cable tie right side cable tie left side ...

Страница 76: ... for the left side but with the cable tie mirror inverted Rotate the collimator through the whole interval and make sure the cable ties does not come in contact with the collimator moving parts Reattach collimator cover C Make sure not to forget to attach the cable ties When replacing the collimator the new collimator should be positioned and adjusted so that the light and radiation fields corresp...

Страница 77: ...urements made in the approximate center of each quadrant of the light field Fig 11 If the illumination is less than 180 lux check the lamp supply Refer to wiring diagram X037E page 180 Light field relative to the X ray field 9 Load a 35 x 35 cm 14 x 14 cassette with film Put the cassette on a table or a similar repository Fig 11 Fig 12 Fig 13 Equipment required Lux meter Equipment required Cassett...

Страница 78: ...ns Fig 12 Set 52 kV 2 0 mAs on the control panel Release an exposure Develop the film and measure the deviation Acceptable deviation 1 7 Fig 13 If the deviation is greater loosen the Allen screws marked E slightly and move the rotary flange to desired position Tighten the screws marked E Fig 14 Repeat the test and adjustment of the rotary flange position until the deviation between the light and r...

Страница 79: ...ach other as possible but with the same diameter of the pull rod Fig 26 The parallelism must not deviate more than 0 6 mm The measurements must be performed with the arm in the uppermost and lowermost positions If not parallel loosen the locking nuts and adjust by turning the pull rod Never work with the system open if the capacitor is charging or has just been charged The capacitor bank may still...

Страница 80: ...an 35 mm Fig 3 If the visible part of the adjustment rod is longer than specified the single tank and the arm might fall If any adjustment is needed the single tank should be secured in its uppermost position with a ceiling support Fig 2 After the single tank has been secured the two nuts can be loosened and the adjustment rod can be turned Lock the rod with the nuts and repeat the parallelism che...

Страница 81: ...in the column Fig 4 and the lining in the lower joint Fig 5 Check that the arm system stops in any position If does not stop but moves lower or higher Adjust the arm system with the adjustment screw Fig 6 until it balances in all positions If the arm moves lower the screw must be tightened if it moves up the screw must be loosened Fig 4 For upper arm stability Fig 5 For lower arm stability Fig 6 F...

Страница 82: ...les in the cover Fig 4 Loosen the screws completely with a 4 mm Allen wrench Retighten the screws until there is no play Tighten the screws evenly until the upper arm holds its position but is still easy to move Lower arm If the lower arm does not hold its position it must be adjusted Fig 5 Loosen the screw completely Retighten the screw until there are no play Tighten the screw until the lower ar...

Страница 83: ...it must be adjusted Fig 7 Loosen the screw completely Retighten the screw until there is no play Tighten the screw until the fork holds its position Movement of the single tank If the single tank rotates too easily or does not hold its position in the fork Remove the caps on the fork Tighten or loosen the friction adjustment one on each side of the fork Fig 8 Fig 7 Fig 8 MOB00580 ...

Страница 84: ... Page 6 of 28 Siemens Elema AB Rev 05 01 02 SPS UD Solna Sweden 10 6 Mechanical systems Movement of the collimator Remove the collimator cover Adjust the collimator movement resistance with the screw 1 Fig 9 Reattach all covers Fig 9 1 ...

Страница 85: ... column cover by removing the transport handle and the lower column cover by lifting it upwards Never work with the system open if the capacitor is charging or has just been charged The capacitor bank may still be charged even if the system is switched OFF and the mains cable is disconnected Life threatening electric shock hazard exists See Chap Protective measures when working on the capacitor ba...

Страница 86: ...OBILETT Plus and Plus M only Disconnect all cables ground connections and K68 according to Fig 12 Remove the locking rings Remove the bearing rings Remove the shaft Let the turn plate down and remove it The ceiling suspension must be able to hold a weight of 100 kg since the entire weight of the arm will be on the ceiling support once the spring is removed If not the arm and single tank will fall ...

Страница 87: ... and check through the hole for the adjustment screw that the front of the spring pack with recess is visible Mount the adjustment screw and tighten until the spring pack is held in position Fig 13 Risk of injury to the hands The strong tension in the spring pack could cause undesirable actions Be careful during the following procedures If the spring pack does not lower there is still spring tensi...

Страница 88: ...ect the ground cable and K68 All MOBILETT s Reinstall the supporting wheels behind the tilt bar Reattach the tilt bar Remove the ceiling support carefully and check that the single tank remains in the uppermost position by itself If not tighten the adjustment screw Move the arm into the park position Lower the unit to the floor and block the rear wheels Check the arm and single tank movement If ne...

Страница 89: ...t Ensure compliance with the safety information in the section Safety information and protective measures Never work with the system open if the capacitor is charging or has just been charged The capacitor bank may still be charged even if the system is switched OFF and the mains cable is disconnected Life threatening electric shock hazard exists See Chap Protective measures when working on the ca...

Страница 90: ... and Plus M only Remove the tilt bar Fig 14 Remove the supporting wheels behind the tilt bar Jack up and block the unit securely 5 cm above the floor This must be done properly so that the unit does not tip over Disconnect all cables ground connection and K68 according to Fig 15 Fig 14 Fig 15 MOB00270 Shaft K68 Locking Locking ring ring ...

Страница 91: ...ould be installed in the reverse order Reinstall the turn plate Reinstall the shafts Reinstall the bearing rings Reinstall the locking rings Connect the ground cable and K68 Reinstall the supporting wheels behind the tilt bar Reinstall the tilt bar Reattach the side covers and the rear cover Set switch S10 in OFF position to charge the capacitor bank Reattach the top cover Connect the unit to main...

Страница 92: ...ure the arm with a rope Block the rear wheels and apply the parking brake Fig 17 Never work with the system open if the capacitor is charging or has just been charged The capacitor bank may still be charged even if the system is switched OFF and the mains cable is disconnected Life threatening electric shock hazard exists See Chap Protective measures when working on the capacitor bank Equipment re...

Страница 93: ...cable ties see Page 9 5 Remove the collimator Disconnect all electrical connections to the single tank Remove the screws and nuts Fig 19 bolts placed in the ends of the axis of rotation Lift up the fork and remove the single tank Do not turn the fork around The new single tank has to be installed in the same position as the old one Replace the locking nuts with new nuts enclosed with the new singl...

Страница 94: ... Page 9 5 and 9 6 Tighten the adjustment screw Fig 18 so that the single tank is balanced Set switch S10 in the OFF position Fig 20 MOB00479 BK Black BU Blue RD Red YE Yellow GN YE Green yellow WH White VT Violet OG Orange BN Brown Voltage divider HT BK WH BK OG YE RD GN BK BK BK Temperature sensor HT transformer Resistor for mA measuring mA pos Stator for the rotation BK BU RD BN BK GN YE BK BN V...

Страница 95: ...ement of collimator Reattach all covers on the single tank Adjust the adjustment screw so that the single tank is balanced If any problems occur refer to the section Adjustment of arm system Use the service program P16 Show the exposure counter and record the values of the exposure counter in the service protocol and in the unit documentation Use the service program P10 Fast adaptation to adjust t...

Страница 96: ...support arm with a piece of rope Fig 21 Remove covers A and B Remove collimator cover C Fig 21 Never work with the system open if the capacitor is charging or has just been charged The capacitor bank may still be charged even if the system is switched OFF and the mains cable is disconnected Life threatening electric shock hazard exists See Chap Protective measures when working on the capacitor ban...

Страница 97: ... electrical connections to the single tank Remove the supporting hub in the rotation axis of the fork Remove all cable clamps and cable ties on the arm and the chassis Disconnect the single tank and the fork from the arm Disassemble the fork so the cables can be removed Disconnect the chassis connections and remove the cables Fig 22 Fig 22 Danger of injury The arm may move uncontrollably when the ...

Страница 98: ...nstall the collimator and its wires Attach only cover C Connect all connections and reinstall all cable clamps Install new cable ties Fig 23 MOB00479 BK Black BU Blue RD Red YE Yellow GN YE Green yellow WH White VT Violet OG Orange BN Brown Voltage divider HT BK WH BK OG YE RD GN BK BK BK Temperature sensor HT transformer Resistor for mA measuring mA pos Stator for the rotation BK BU RD BN BK GN Y...

Страница 99: ...the handle and the foot while keeping the single tank on the table Tighten the adjustment screw until the single tank and arm are balanced Refer to the section Adjustment of arm system Switch on the light localizer and check the coincidence of the light and radiation fields according to the specifications in the section Replacement of collimator Reattach the remaining covers Do not stretch the cab...

Страница 100: ...aced Fig 24 Remove the old lining by loosening screw 1 Fig 24 When installing the new lining make sure that the lining is facing the right way If the braking linings meet the requirements and the braking force is still low check the tension of the brake wire Remount the rear wheels Fig 24 Never work with the system open if the capacitor is charging or has just been charged The capacitor bank may s...

Страница 101: ...ire locking screws 2 with the brake released Fig 25 Stretch the wire and secure it with the screws when the required brake force is obtained Replacing the supporting wheels 10 Jack up the unit with a wood block measuring 5 x 5 cm Block the rear wheels so that they cannot turn Remove the locking ring through the hole in the tilt bar Fig 26 Remove the wheel shaft so that the supporting wheels can be...

Страница 102: ...ining 10 Remove the joint covers Remove the locking nut Remove the screw and the disc springs Replace the horizontal friction lining Remount the screw and the the disc springs fig 27 Secure the screw with the locking nut Adjust the horizontal friction linings Refer to the section Adjustment of the friction linings Page 10 4 Reattach all covers Fig 27 Locking nut Disc springs Friction lining ...

Страница 103: ...if the system is switched OFF and the mains cable is disconnected Life threatening electric shock hazard exists See Chap Protective measures when working on the capacitor bank Equipment required Large caliper rope ceiling support The ceiling suspension must be able to hold a weight of 100 kg since the entire weight of the arm will be on the ceiling support once the spring is removed If not the arm...

Страница 104: ...cal systems Loosen the adjustment screw so that the arm is no longer balanced however the spring mechanism remains in position Fig 29 Do not allow the spring mechanism to fall out Remove the screw and washer from the upper counter bearing Fig 30 Remove the friction linings Fig 29 Fig 30 MOB00498 Adjustment screw ...

Страница 105: ...unit Reinstall the upper counter bearing Tighten the screws Check that there is no braking action on the counter bearings Tighten the adjustment screw Make sure that the spring mechanism is under tension before releasing the ceiling support Attach the rear left right and front covers Check parallelism refer to section Parallelism Adjust counterbalance refer to section Counterbalance Adjust frictio...

Страница 106: ...MOBILETT Plus E M SPR8 215 898 01 Page 28 of 28 Siemens Elema AB Rev 05 01 02 SPS UD Solna Sweden 10 28 Mechanical systems This page intentionally left blank ...

Страница 107: ...pen if the capacitor is charging or has just been charged The capacitor bank may still be charged even if the system is switched OFF and the mains cable is disconnected Life threatening electric shock hazard exists See Chap Protective measures when working on the capacitor bank The front cover does not have to be removed to adjust the speed On the lower left of the cover there is a hole covered wi...

Страница 108: ...Do not use the parking brake Remove the wheel according to Fig 2 Loosen the 2 screws A Fig 3 Loosen the tension bearings B Fig 3 with a 13 mm wrench Remove the belt Install the new belt Tighten the tension bearings B Fig 3 and the screws A Fig 3 Rotate the large toothed wheel by hand and check for smooth operation and that the belt is aligned over the toothed wheels Adjust the tension according to...

Страница 109: ...1 Loosen the screws A Fig 4 The tension of the transmission belt can then be adjusted with a 13 mm wrench Press the special adjustment device to the transmission belt and hold a finger on top of it When the button C Fig 5 is in the same level as the top of the adjustment device a proper pressure is applied Fig 4 Fig 5 C MOB00460 A 1 1 5 mm ...

Страница 110: ... on the two tension bearings to a minimum distance of 1 1 5 mm between the bearing and the washer Fig 4 The tension of the transmission belt is right when the adjustment device and the belt are in contact in exactly three points 1 Fig 6 In 2 Fig 6 the belt is too tight and in 3 Fig 6 the belt is too slack Tighten the screws A Fig 4 Remount the wheel Fit the covers Fig 6 MOB00278 1 2 3 ...

Страница 111: ...nit or battery pack depending on the side where the motor is being replaced Refer to Fig 7 for electrical connections Tilt the unit and support the affected side with a block of wood Fig 7 Motor power unit electrical connections Fig 8 Removing wheel and motor Equipment required Ratchet with Allen socket MOB00500 Power supply Right motor Left motor Battery Motor control buttons Battery indicator MO...

Страница 112: ... Install the charging unit and or battery pack Refer to Fig 7 for electrical connections Install the wheel with the 4 screws Remove the block of wood Reattach the covers Repairs to the motor power unit 11 The motor drive units should not be repaired If the motor drive unit is defective with the exception of 2 5 A fuses the entire unit should be replaced Replacement of batteries 11 The batteries ar...

Страница 113: ...Siemens Elema AB SPR8 215 898 01 Page 1 of 2 MOBILETT Plus E M Solna Sweden Rev 05 01 02 SPS UD Changes to previous version 12 Chap 2 Information about Error 33 revised Chap 8 Information and images revised ...

Страница 114: ...MOBILETT Plus E M SPR8 215 898 01 Page 2 of 2 Siemens Elema AB Rev 05 01 02 SPS UD Solna Sweden 12 2 Changes to previous version This page intentionally left blank ...

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