• Topic ID: id_17423044
  • Version: 4.0
  • Date: Jan 20, 2020 8:32:05 PM

Gantry Microphone with MIC Cover Replacement

Prerequisites

Overview

This procedure defines the steps necessary to replace Gantry MIC with MIC Cover.

Procedure

  1. Remove gantry right side cover.

    Refer to Parts Replacement → Gantry → Enclosure → (Cover Removal Procedures).

  2. Stop the rotor of X-ray tube in case of Liquid Bearing Tube before HVDC off. Refer to Liquid Bearing Tube Rotor stop procedure for details.
  3. Turn OFF the Axial Drive, HVDC and 120 VAC switches on the gantry’s Service Switch Panel.
  4. Remove the gantry left side cover, top covers and scan window.
  5. Remove the front cover.
  6. Remove MIC with cable from MIC holder.
  7. Remove MIC holder, two screws and plastic resin of hotmelt from gantry cover.

    Figure 1. Microphone Removal

  8. 1.Place MIC to MIC_MOUNT(5398364), and put MIC_MOUNT_UPPER (53983645) on MIC_MOUNT.
  9. Insert two COLLARs to holes on MIC_MOUNTs.
  10. Fix MIC MOUNTs by two screws with Loctite242/243.

    Figure 2. New Microphone Installation

Finalization

  1. Restore the gantry covers.
  2. Make sure gantry intercom functionality works correctly.