User guide

97
Pedestal
10: Preventative Maintenance
General
The TracStar750 / AvL Model 750 iMoVSAT is constructed to require a minimum amount of regular maintenance.
The following 21-Point Check List should be undertaken on a regular basis and can be rectified in the field:
21 Point Check List
1. Any small chips on the reflector front surface should be cleaned, filled with aluminum-loaded car body filler, rubbed
down, primed and touched in with two-pack polyurethane paint.
2. The feed horn should be checked for cracks or damage.
Azimuth:
3. Check for unusual noise in the azimuth bearing, azimuth gearbox, and azimuth motor.
4. Run in azimuth and check for unusual noise in azimuth motor.
5. Check position of azimuth drive cables on capstan at 0°# Az.
6. Check drive cables for damage.
7. Run both Az limits and observe cable tracking.
8. Check for excessive backlash in gearbox.
9. Inspect cable terminations.
10. Inspect Az potentiometer.
Elevation:
11. Check for unusual noise in elevation pivot bushings and elevation gearbox.
12. Run in elevation and check for unusual noise in elevation motor.
13. Run up to limit.
14. Check tracking of elevation drive cables.
15. Check drive cables for damage.
16. Check for excessive backlash in gearbox.