Chapter 9 Page no. 1376
JC-DR-A-285.fm
GE Healthcare Senographe DS
Revision 1 Service Information and Procedures Class A 2385072-16-8EN
Job Card D/R A285 - Collimator Filter Wheel Assembly
6 PREREQUISITES
• Rotate the arm to 180° for access to the collimator.
• Switch off the Gantry power.
• Remove the tube cover (Refer to Job Card PHY A044 -
Remove/Reinstall Gantry Covers on page 523) to access
the Filter Wheel (1).
7 PROCEDURE
1. Remove the two screws (2, one each side) securing
the rear plate (3) which supports the FOV button
(4 mm allen wrench).
2. Using an antistatic bag as protection, place the plate
and button on the X-ray head support arm.
!
Notice:
Do not attempt to disconnect the FOV button.
Do not allow the plate to hang down; the FOV con-
nection is fragile.
3. Remove the four screws (9, two each side) which
secure the X-ray containment box (4) (4 mm allen
wrench).
4. Remove the X-ray containment box. If necessary, first
remove the two screws (5) which secure the fan pro-
tection box (3 mm allen wrench).
5. Remove the two screws securing the connector pro-
tection box (6) (small cross-head screwdriver).
6. Disconnect four cables.
- Lamp cable W503 (flying lead) (7)
- Collimator cable W501 (8)
- Filter wheel cable W505 (9)
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