• SIGNA MR355 / SIGNA MR360
  • Service Manual
  • 5856356-3EN Revision 5.0
  • Basic Service Documentation. Copyright General Electric Company.
  • Object ID: 00000018WIA30C02030GYZ
  • Topic ID: id_13106670 Version: 1.3
  • Date: Jul 6, 2019 12:03:29 AM

Tabletop assy, LH TBL

Prerequisites

Table 1. Personnel requirements
Required personsPreliminary requirementsProcedureFinalization
20 minutes120 minutes0 minutes
Table 2. Tools and test equipment
ItemQuantityEffectivityPart numberManufacturer
Spanners (1/2,3/4,3/8,7/16,5/16,32)One for each size---
Circlip inserter (A-150,A170)One for each size---
Hex. Socket (9/16,3/4,3/8)One for each size---
Scale (15cms & 30 cms)One for each size---
Ball driver (5/32,5/64,3/32,1/8,7/64,9/16)One for each size---
Allen key (5/32,5/64,3/32,1/8,7/64,9/16)One for each size---
Flat nose plier----
Cutter----
Copper hammer----
Screw driver (8mm, 4mm)One for each size---
Knife ----
Soft mallet----
Torque wrench (40-120 kg-cm,10 –50 lb-ft)----
Table 3. Consumables
ItemQuantityEffectivityPart numberManufacturer
Locktite / Primer (242, 569, 680, 415, 770)One for each size---
IPA----
White Marker----
Grease Mobil HSC 32----
Cotton waste White (High grade)----
Table 4. Replacement parts
ItemQuantityEffectivityPart numberManufacturer
Refer to Low Height Fixed Table FRU Manual1---
Table 5. Safety

Procedure

  1. Turn the system power OFF
  2. Disconnect the Table from MR Magnet and ground; take it out from the Magnet room.
  3. Remove the scissor covers from the table.
    Figure 1. Remove the scissor covers from the table.
  4. Remove the Cradle from the Table.
    Figure 2. Remove the Cradle from the Table
  5. Remove the Support block fixed to the tabletop for the cables.
    Figure 3. Remove the Support block fixed to the tabletop for the cables
  6. Remove the Cable tract connecting screw to the table top.
    Figure 4. Remove the Cable tract connecting screw to the table top
  7. Remove the cable strap, cramp and track and remove cables.
    Figure 5. Remove the cable strap, cramp and track and remove cables
  8. Remove the Cable assemblies along with the cable tract from the Tabletop.
    Figure 6. Remove the Cable assemblies along with the cable tract from the Tabletop
  9. Remove the Table Top side FRP covers fixing screws in the Table and remove side FRP coversside FRP covers
    Figure 7. Remove the Table Top side FRP covers fixing screws in the Table and remove side FRP coversside FRP covers
  10. Remove the cables connected to the Limit switch of the home sensor.
    Figure 8. Remove the cables connected to the Limit switch of the home sensor
  11. Remove the Home sensor Cable assembly from the Tabletop.
    Figure 9. Remove the Home sensor Cable assembly from the Tabletop
  12. Remove wheel guide fixing screws and then remove wheel guides
    Figure 10. Remove wheel guide fixing screws and then remove wheel guides
  13. remove 2 shafts connecting tabletop and table scissor
    Figure 11. Remove 2 shafts connecting tabletop and table scissor
  14. Now the Table top is free in the Table. Lift the Table Top from the base/scissor assembly.
    Figure 12. Lift the Table Top from the base/scissor assembly
  15. Put down the New Table top on base/scissor assembly.
    Figure 13. Put down the New Table top on base/scissor assembly
  16. Move the Table top on either side and adjust such a way that the 2 shaft holes of table top will align with the scissor hole.
    Figure 14. Move the Table top on either side and adjust such a way that the 2 shaft holes of table top will align with the scissor hole
  17. Install the 2 shafts connecting tabletop and table scissor
    Figure 15. Install the 2 shafts connecting tabletop and table scissor
  18. Install wheel guides
    Figure 16. Install wheel guides
  19. Install the Home sensor cable in the table top.
  20. Connect the Home sensor cable to the Home sensor.
    Figure 17. Connect the Home sensor cable to the Home sensor
  21. Install tabletop side FRP covers.
    Figure 18. Install tabletop side FRP covers
  22. Insert the PA coil coaxial and DC cable Assembly from the top of the Tabletop.
    Figure 19. Insert the PA coil coaxial and DC cable Assembly from the top of the Tabletop
  23. Fix the Cable track of the PA coil coaxial and DC cable Assembly to the Tabletop.
    Figure 20. Fix the Cable track of the PA coil coaxial and DC cable Assembly to the Tabletop
  24. Fix the support block to the Table top.
    Figure 21. Fix the support block to the Table top
  25. Rout the cables in the table and wind the spiral tube around all Assemblies.
    Figure 22. Rout the cables in the table and wind the spiral tube around all Assemblies
  26. Assemble the cradle to the table.
  27. push the table back to magnet room and connect it with Dock frame
  28. Connect the cables of the table.
  29. Level the table.
  30. Dock centering and Height adjustments.
  31. Fix the scissor covers from the table.
  32. Fix the FRP Base Covers of the Table.

Finalization

  1. Turn the system power ON. Refer to Lockout / Tagout for System Cabinet PDU Main Breaker.
  2. Level the Table and perform Height Adjustment. Refer to LEVELING FIXED TABLE and TOP HEIGHT ADJUSTMENT.
  3. Fix the FRP Covers of the Table.
  4. Perform CRADLE HOME SENSOR CHECK .
  5. Check the Table Function. Refer to TABLE CHECKS AFTER INSTALLATION .
  6. Perform Express Coil MCQA Test to check that the PA coil cable is properly connected.