• Topic ID: id_16157868
  • Version: 2.0
  • Date: Jun 10, 2020 2:46:21 AM

IMS Cable Bear Assembly Replacement

Prerequisites

Overview

This procedure is for the Global PET/CT Table, with fixed position IMS and GT1700V Table

Procedure

  1. Raise the Table to maximum height.
  2. Move the Cradle to OUT limit position.
  3. Remove power from Table by turning off 120VAC, Axial Drive and HVDC switches on Service Switch Panel.
  4. Remove the following Table Covers:

    • Top Cover (Right/Left)

    • Front Top Cover

    • Rail Cover (Right/Left)

    • Rear Top Plate

    • IMS Rear Cover

    • IMS Side Cover (Right/Left)

    • Liner Scale Cover

    Figure 1. Table Covers

  5. Remove two screws holding the upper duct cover, and remove the cable duct cover from the Table.
  6. Remove two screws holding the lower duct cover, and remove the cable duct cover from the Table.

    Figure 2. Cable Duct Cover Removal

  7. Disconnect three cable connectors and a GND wire on the cable duct, and remove any clamps.

    Figure 3. Cable Connection of Cable Duct

  8. Disconnect two cable connectors and a GND wire from the GTCN board, and remove any clamps.

    Figure 4. Cable Connection of GTCN

  9. Remove two support brackets (holding the IMS cable guide to the IMS frame) by unscrewing 2 (x2) screws.

    Figure 5. Support Bracket Removal

  10. Cut any tie-wraps holding the IMS cable to the Table frame, and remove any clamps, then disconnect the cradle motor cable connector.

    Figure 6. IMS Cable Assy Routing

  11. Remove the IMS cable bear assembly from the Table.
  12. Install the new IMS Cable Bear Assy by referring to Step 11through Step 7.
  13. Verify that the top surface of the support bracket is parallel with the top surface of the Table frame.

    Figure 7. Support Bracket Configuration

  14. Verify that the cables in the cable guide have no deflection and are not twisted.

    Figure 8. Cable Configuration in the cable guide

  15. Verify that the cables on the Table frame have no deflection.

    Figure 9. Cable Configuration on the Table Frame

Finalization

  1. Re-install the touch sensor assy R, all removed Table trays and covers.
  2. Power up the Table from the Service Switch Panel.
  3. Verify that the IMS moves IN and OUT normally.