20-inch Maintenance

Maintenance Schedule

TASK DAILY
(when observing)
WEEKLY MONTHLY 3 MONTHS 6 MONTHS YEARLY BY WHOM
Check purge airflow X           O
Check CCD temperature X           O
Check optical path for moths, etc.   X         O
Check dessicants & filters     X       O
Change Flat Field lamp     X       O
Pump dewar       X     E
Check CryoTiger pressure       X     E
Backup TCS PC         X   O
Lubricate dome wheels         X   E
Aluminize primary           X E+O
Oil drive disks           X E+O
Check TCS Computer Fans           X E

O=APO Observer; E=APO Engineering; E+O=APO Engineering with Observer Assistance

Removing the Primary

Installing the Primary

Collimation Procedure

Warming the CCD

Cooling the CCD

Testing the CCD heater

Parts List

Spares

Temperature Sensor

Drawings

HOME


Added TCS Fan Check December 19, 2002
updated September 29, 1999
Alan Uomoto