GE Compax 40E System Service Manual page 111

GE HEALTHCARE
REV 9
6. Using the service wrench supplied, tighten the collimator locking ring until. Do not overtighten. The
locking ring will be torqued at a later step.
7. Using GEMS torque wrench, 46−315668P1, Sturtevant Richmond 3SDR−200I, 40−200 in−lbs, set
the torque wrench to 200 in−lbs (22.5 Nm) and connect it to the collimator service wrench using the
square in the wrench.
Note: To apply proper torque to the locking ring ensure that the long axis of the torque wrench is aligned with the long
axis of the wrench handle when applying torque. Refer to Illustration 6−2. Also, make sure that you hold the
torque wrench at the handle ONLY. Holding it in other places will cause the applied torque to be wrong.
8. Tighten the collimator locking ring until the torque wrench clicks. Be careful not to jam the torque
wrench against the screws which hold the mounting plate.
ILLUSTRATION 6−2
LONG AXIS OF TORQUE WRENCH
ALIGNED WITH LONG AXIS OF HANDLE
9. Remove the locking ring service wrench and torque wrench.
10. Apply Loctite Threadlocker to the supplied set screws and install at least 2 set screws in the 3 holes
in the collimator locking ring using the supplied hex socket wrench. Apply either the medium strength
Loctite Threadlocker 242 (PN. 46−170686P2) or the oil resistant/medium strength Loctite
Threadlocker 243 (PN. 2257866) to the set screws.
System Service Manual − SYSTEM COMPAX 40E, CE Marked
with MPH 50/65/80 (including XT, RS 85 and Tomo−Link)
Stop tightening when the torque wrench clicks.
DO NOT overtighten. If you overtighten, you may strip the set screw
threads or break the torque wrench.
BE CAREFUL NOT TO CROSS THREAD THE SET SCREWS. PROPER
TORQUE CANNOT BE ACHIEVED IF THE SET SCREWS ARE CROSS
THREADED.
LOCTITE THREADLOCKER MUST BE APPLIED DURING INSTALLATION TO
PREVENT THE SET SCREWS FROM BACKING OUT OVER TIME.
100
DIRECTION 2154260−100