Section 3 Collimator Installation Verification - GE Compax 40E System Service Manual

GE HEALTHCARE
REV 9
SECTION 3
COLLIMATOR INSTALLATION VERIFICATION
1. Apply LOTO to system power.
2. Remove the locking set screws (item 4) from the collimator locking ring. Refer to Illustration 6−1.
3. Using the service wrench supplied, fully loosen the collimator locking ring (item 2) to detach the
collimator from the X−ray tube mounting plate (PN. CGY0750381). To loosen the ring, turn the
wrench counterclockwise. Refer to Illustration 6−1.
ILLUSTRATION 6−1
LOCKING RING AND SET SCREWS
4. Inspect the threads of the collimator mounting ring (item 1) on the x−ray tube and the locking ring
(item 2) on the collimator for evidence of a previous cross threaded condition. If any visible thread
damage is present due to cross threading, order a new plate and and/or new collimator as
necessary.
Note: If replacement of the mounting plate is necessary, alignment of the new mounting plate to the X−ray tube focal
spot is required. Refer to the Ultranet SA or Ultranet SM service manual for this procedure.
5. If no damage is visible, install the collimator and tighten the locking ring. Be careful not to cross
thread the locking ring on the mounting plate. Make sure the pin (item 3) lines up with the slot in the
collimator mounting ring. Refer to Illustration 6−1.
System Service Manual − SYSTEM COMPAX 40E, CE Marked
with MPH 50/65/80 (including XT, RS 85 and Tomo−Link)
4
4
THE COLLIMATOR IS SLIGHTLY FRONT HEAVY. APPLY A SLIGHT UPWARD
FORCE TO THE COLLIMATOR HANDLE TO AVOID CROSS THREADING
THE LOCKING RING.
4
CCW
2
3
1
99
DIRECTION 2154260−100