• Topic ID: id_17423474
  • Version: 3.0
  • Date: Dec 3, 2019 2:01:04 AM

Stepping Motor Assembly Replacement

Prerequisites

Procedure

    Notice Image
    • notice
    • Understand and follow the Safety Guidelines Manual.
  1. Move the cradle to the OUT mechanical limit position by hand.
  2. Raise the Table to its highest position.
    note: If the Table up/down movement is inoperative, use the service power cable to raise the Table (refer to Enforced Table Elevation).
  3. Remove power from Table by turning off “120VAC”, “Axial Drive” and “HVDC” switches on the service switch panel.
  4. Remove the following covers and component from the Table:

    Figure 1. Stepping Motor Location

  5. Disconnect the cable connector leading from the Stepping Motor Assy.
  6. Loosen the four screws that fasten the motor support bracket to the Table frame, to relieve the belt tension.
  7. Remove the four screws that fasten the stepping motor to the motor support bracket, and remove the drive belt from the stepping motor pulley, and slide stepping motor out of the motor support bracket.
  8. Remove the stepping motor pulley from the stepping motor shaft by loosening the set screw, and transfer the pulley to the new stepping motor.

    Figure 2. Stepping Motor Assembly

  9. Install the new stepping motor by referring toStep 7 through Step 5.
  10. Restore the Table to original configuration.

Finalization

No finalization steps.