Cable and Track Assy Replacement

Prerequisites

Procedure

  1. Remove LPCA Cover. Refer to LPCA Cover Removal.
  2. Remove all covers from Rear Pedestal.
  3. Remove Bridge end cover.

    Figure 1. Bridge end cover

  4. Release the lever for the belt tension.

    Figure 2. Release the lever

  5. Mark on the belt at the edge of fixture plate with white pen so that the belt tension can be restored it is after the replacement.
  6. Remove belt fixture plates.

    Figure 3. Belt fixture plates

  7. Cut 2 tie wraps from LPCA.
  8. Remove the following connectors. (J18 BNC, Sub-D Connector J21, J9 – J16 BNC connectors from MC pre-amp (Input Side), 2 LED cable-With LED, MIC)

    Figure 4. Remove connectors

  9. Remove 2 screws from cable and track assy.

    Figure 5. 2 screws

  10. Remove the LPCA from the Rear pedestal.

    Figure 6. Remove the LPCA

  11. Cut 3 tie wraps at the rear pedestal top front chassis.

    Figure 7. Cut tie wraps

  12. Remove 3 cables from Maga switch (J15, J18 and J21 connectors), Remove 3 cables from Rear Pedestal. (Left side: J7 connector. Right side: BNC of Dummy Load and J1 connectors.)

    Figure 8. Remove cables

  13. Remove 4 screws from bracket.

    Figure 9. screws at bracket

  14. Remove Cable and track assy with bracket.
  15. Move the Cable and track assy with bracket to the open space. (Outside of Magnet Room)
  16. Remove 2 screws and remove bracket from track assy.

    Figure 10. track assy

  17. Restore Cable and Track Assy by the reverse order of the removal.
    note:

    The all tie wraps and cables length must be fixed at the same as illustration 11.

    Figure 11. Tie-wrap Points

    note:

    Connect the LED cable so that the cable is centered to the LED itself.

    Figure 12.

Finalization

  1. Restore the Power. Refer to Lockout / Tagout for System Cabinet PDU Main Breaker.
  2. Run MCR tool.
  3. Run one head or body scan.