• Topic ID: id_17423070
  • Version: 3.0
  • Date: Apr 22, 2019 12:56:39 AM

Equipped FAN Inverter Replacement

Prerequisites

Overview

  • Remove old Fan Inverter

  • Replace new Fan Inverter

1 Equipped Fan Inverter Removal

Procedure

    • danger
    • Electrocution hazard
    • High Voltages present.
    • Use proper lockout/tagout procedures before replacing components. See safety menu of Service Document gui for appropriate procedures.
  1. Move table to its lowest elevation.
  2. Remove power to the gantry using proper Lockout/Tagout procedures.
  3. Remove side top and front gantry covers.
  4. 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.
  5. Turn OFF all 3 switches (Axial Drive, HVDC, 120VAC) on the Service Switch Panel.
  6. Remove power at main disconnect (A1) panel. Use proper Lockout/Tagout procedures.
  7. Cut any ty-wraps holding the cables to the Fan Inverter.
  8. Disconnect the power cable connector of the Fan Inverter.
  9. Unscrew the 2 screws, and remove the Fan Inverter from the Power Unit.

    Figure 1. Equipped Fan Inverter Removal

2 Equipped Fan Inverter Installation

Procedure

  1. Place the new Fan Inverter on the Power Unit.
  2. Connect the power cable connector of the Fan Inverter.
  3. Fasten the cables to the Fan Inverter using tie-wraps.

3 Finalization

Procedure

  1. Verify that the Fan is operating normally.