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Service Manual

Maintenance Instructions

Siemens Ltd. Med India

Version  6.0

Copyright 

 SIEMENS LTD. All rights reserved. For internal use only

8-10

Make sure that the X-ray source assembly is properly secured with the transport safety
lock.  It should not be possible to move the X-ray source assembly upwards.This is
very important for safety reasons.

Tighten the clamping knob.

Rotate the X-ray source assembly so that the collimator points towards the floor.

Loosen the two hexagonal head bolts with a 16-17 open end spanner three to four
turns for each screw.

Loosen the two screws (two to three turns) mounted on the mounting plate- outer
assembly.

Grab the handles and remove the X-ray source assembly. Place it on a soft bedding
with collimator facing upwards.

Do not attach anything other than the X-ray source
assembly to the arm system.
Other objects will disengage the transport safety lock,
causing the arm system to move unanticipated which
can cause both personal injury and damage to the
equipment.

8.11  Replacing the single tank

To replace the single tank, remove it from the mobile stand as follows:
Move the arm system in the lowest (parking) position and check if the safety locking
has engaged.
The arm cannot be moved upwards any longer.
Tighten the supplementry lock turning the knob.
Remove the single tank cover.
Disconnect the Single Tank connections from Control by removing snap-on
connections and the earth connection.
Loosen the two M10 Hex bolts on the mounting plate assembly using 16/17 spanner.
Lift the single tank off vertically and place it on a a soft base.
Detach the collimator
Install the new single tank in the reverse  order mentioned above.
Check alignment of light field to radiation field and adjust if necessary .

The parameter adjustments and the calibration of the Unit is
Specific to the Single Tank. In case if the Single Tank is
replaced 

it is necessary to recalibrate the equipment.

8.12  Replacing the collimator

In case of any damage to collimator housing, the collimator has to be replaced
completely.
Proceed as described in the following
Loosen the allied connector on the collimator cable and disconnect it.
Remove the collimator after loosening the four screws .

CAUTION

WARNING

Summary of Contents for 25

Page 1: ...ns AG 2003 The reproduction transmission 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 Maintenance Instructions ...

Page 2: ...TD All rights reserved For internal use only 8 1 Multimobil 2 5 Med Maintenance Instructions Version 6 0 Copyright SIEMENS LTD MED INDIA The reproduction transmission or use of this document or its contents is not permitted without express written authority Offenders will be liable for damages ...

Page 3: ...ETY CHECKS 8 5 8 6 1 Daily checks 8 5 8 6 2 Monthly checks 8 5 8 7 PERFORMANCE CHECK EVERY SIX MONTHS 8 5 8 8 ALIGNING THE LIGHT FIELD TO THE RADIATION FIELD 8 6 8 8 1 Operating Sequence 8 6 8 8 2 Adjustment and Evaluation 8 6 8 9 CHECKING AND READJUSTING THE COUNTERWEIGHT 8 7 8 9 1 Movements 8 7 8 9 2 Adjustment Instructions 8 7 8 10 REMOVING THE TOP PANEL FRONT COVER AND X RAY SOURCE ASSEMBLY 8 ...

Page 4: ...h them 8 2 Replacing damaged or missing screws Before working on the open MULTIMOBIL 2 5 switch off the unit with the power switch on the control panel and unplug the power cable Before inserting or removing PC boards observe the ESD regulations Damaged or missing screws should only be replaced by steel screws having the specified tensile strength with Nickel Plating 6492 specified in the Surface ...

Page 5: ...afety features can no longer be guaranteed possible damage to electrical components formation of flammable mixtures of air and the solution vapour To disinfect surfaces we recommend common liquid solutions of aldehyde based or ampholytic surfactant based disinfectant 8 4 Product Disposal Legal regulations may contain special prescriptions concerning the disposal of this product In order to avoid e...

Page 6: ... 2 Monthly checks Check the lifting and lowering movements of the support arm Check function of locking lever and cap screw on the X ray tube Check the legibility of the labels according to those in section Location of Labels If any label requires to be replaced please notify Siemens customer service 8 7 Performance Check Every Six months Check Counterbalancing of the support arm at each position ...

Page 7: ...s lateral marking Trigger an exposure and develop the film Using a waterproof felt pen write the following data on the developed film set SID film size radiation field size 8 8 2 Adjustment and Evaluation Measure the deviations between light field edges and radiation field edges on all four sides X1 X2 Y1 Y2 as shown Determine the total deviations in the X and Y direction ignore the signs Both len...

Page 8: ...he spring tension should be adjusted for complete balancing i e If the Single Tank moves DOWN from the required position the spring tension is to be increased If it moves UP then the spring tension is to be reduced Refer adjustment instructions 8 9 2 Adjustment Instructions Adjusting the balancing of the arm Carry out the change in the pre tension of the spring tension as explained below Remove th...

Page 9: ...ned Tighten the nut 2 shown periodically using 16 17 Spanner In case of balancing problem contact Siemens Customer Service 8 10 Removing the top panel front cover and X ray source assembly 8 10 1Removing the top panel Turn off the Multimobil 2 5 disconnect the mains chord and wind the cord around the cable holder Lower the X ray source assembly to transport position Lock the Multimobil 2 5 by appl...

Page 10: ...tion Lock the Multimobil 2 5 by applying the brake Arrange some kind of soft bedding to place the front cover on Unscrew the four ornamental screws with 2 5mm allen key Grasp the cassette box and slowly pull it outside Position the front cover on a soft bedding 8 10 3Removing the X ray source assembly Turn off the Multimobil 2 5 disconnect the mains chord and wind the cord around the cable holder ...

Page 11: ...11 Replacing the single tank To replace the single tank remove it from the mobile stand as follows Move the arm system in the lowest parking position and check if the safety locking has engaged The arm cannot be moved upwards any longer Tighten the supplementry lock turning the knob Remove the single tank cover Disconnect the Single Tank connections from Control by removing snap on connections and...

Page 12: ... alignment procedure Connect the connecting cable Check coincidence of light and radiation field and make adjustment if required 8 13 Replacing the Collimator lamp Loosen the screw of the clamp which has marked for light indication on the collimator take out the defective lamp and replace it by a new lamp Do not touch the glass envelope with your bare fingers Screw down the bracket and the front p...

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