• Topic ID: task_zrx_m3c_dlb
  • Version: 2.0
  • Date: May 22, 2020 4:04:45 AM

GTCB Cover Replacement

Prerequisites

Overview

This procedure describes how to replace the GTCB Cover.

Perform following procedures according to Table 3.

1 Preparation

Procedure

  1. Raise the Table to maximum height.
  2. Move the Cradle and IMS 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 Front Base Cover as follows.

    1. Remove two (2) screws.

    2. Set the front base cover up, and remove the cover by lifting it upward to release the hook.

    Figure 1. Front Base Cover Removal

    note:

    Remove Side Base Cover and Foot Switch Cover as necessary.

    Figure 2. Side Base Cover (Left) Removal For 5154867/5155337

    1 Remove two screws.
    2 Open the side base cover, and slide it toward the Gantry to release the hook.

    Figure 3. Side Base Cover (Left) Removal For 5127459/5127460

    1 Remove two screws.
    2 Open the side base cover, and slide it toward the Gantry to release the ball catch.

    Figure 4. Foot Switch Cover Removal

    1 Remove 4 foot pads from the foot switch assembly.
    2 Remove a foot switch cover by unscrewing 3 screws.

2 GTCB Cover Removal

Procedure

    note:

    If NO GTCB cover is found in GTCB Assy, skip this section and go to Spacer Installation.

  1. Disconnect all cable connectors from the GTCB Assy.

    Figure 5. GTCB Location

    1 GTCB Assy
  2. Remove the mounting GTCB cover by loosen four (4) screws as shown in Figure 6.

    Figure 6. GTCB Cover Removal

    1 GTCB Cover
    2 GTCB Assy

3 Spacer Installation

Procedure

    note:

    If the Spacers are already installed to the GTCB Assy, skip this step and go to GTCB Cover Installation.

  1. Remove four (4) mounting screws from GTCB Assy, as shown in Figure 7.

    Figure 7. Remove Screws from GTCB Assy

    1 GTCB Assy
  2. Install four (4) spacers to the GTCB Assy.

    Figure 8. Spacer Installation

    1 GTCB Assy

4 GTCB Cover Installation

Procedure

  1. Set the new GTCB Cover to the GTCB Assy.

    Figure 9. GTCB Cover Installation

    1 GTCB Cover
    2 GTCB Assy
  2. Secure the new GTCB cover, by tightening four (4) screws.

    Figure 10. Securing GTCB Cover

    1 GTCB Cover
  3. Re-connect all cable connectors to the GTCB Assy.

    Figure 11. Connecting Cables

5 Finalization

Procedure

  1. Re-install the Table covers.
  2. Power up the Table from the Service Switch Panel.
  3. Verify that the Cradle and IMS function is operating normally.