LPCA Assembly without cover

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 2 belt fixture plates.

    Figure 3. Removal of Belt fixture plates

  7. Cut tie-wraps from LPCA.
  8. Push out 4 LED and cables from the port with non-ferrous hexagon wrench.
  9. Disconnect the all connectors from the preamp and BNC connector bracket.

    Figure 4. Disconnecting All Connectors

  10. Remove the tie-wrap base on the hypertron bracket. This tie-wrap base reuse to new LPCA.
  11. Remove the 4 screws fixing a port coil connector assy (A port and B port).
  12. Disconnected 3 connectors which connect B port and cables in cable track.
  13. Remove A and B port coil connector assy from the bridge plate of LPCA.
    note:

    A and B port coil connector reuse to new LPCA assy.

    Figure 5. Removal of A Port Coil Connector

  14. Remove 4 screws from cable/track assy, and move the cable/track assy to rear direction.

    Figure 6. 4 screws of Cable and Track Assy

  15. Remove the LPCA from the Rear pedestal.

    Figure 7. Remove the LPCA

  16. Install the removed A and B port coil connector assy and tie-wrap base to new LPCA assy.
  17. Restore LPCA assy by the reverse order of the removal.
    note:

    Make sure that all the tie wraps must be fixed at the same position before removal.

    note:

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

    Figure 8.

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.