9600 Service Manual - gmecorp-usa.com

38 Image System Calibration
Camera Iris Closed Stop (Short Method Continued)
1. In the AUTO FLUORO mode, verify TECH LOCK is OFF.
2. Tape 1 copper filter on the bottom of the collimator to ensure it covers the entire Xray
beam.
3. Loosen the set screw on the closed iris stop as shown in Figure 33.
4. While making an exposure, turn the gears to adjust the iris (open or closed) until the
generator tracks to 68 kV.
5. Carefully swing the closed iris stop against the stop pin. Tighten the set screw to 10
inch/lbs (about 60° of twist in Bristol driver). DO NOT OVER TIGHTEN THE SET
SCREW.
6. Check the gears to ensure they move easily.
7. Verify the generator tracks to 68 kV with one copper filter and the iris closed.
8. Rotate the iris to the open stop position.
9. Reboot the system and re-verify tracking from the specifications on the previous
page.
10. Remove all copper filters when finished.