A P P E N D I C E S
Series 8000™ O&M Manual
139
A-12.1
Pre-installation checklist
Ensure that all recommended maintenance has been per-
formed on the antenna and it is in working order according
to the manufacturer's instructions. Ensure that jacks and/or
gears have been recently greased.
For older systems, all wiring has been checked for rodent
damage or other signs of deterioration.
o
Motor wiring
o
Limit switches, emergency stop wiring
o
Position feedback (encoders/resolvers) wiring
o
All other control system wiring
The receive RF (if applicable) path has integrity for both hori-
zontal and vertical (or left-hand/right-hand circular.)
All the position feedback devices are installed on axis and are
well aligned.
There is no water ingress (present or past) in the protective
housing of any position-feedback devices or mechanically
based limit switches.
Limit switches and emergency stops have been wired in a
fail-safe manner. (They are wired as normally closed.)
The satellite dish has been balanced/focused recently.
Ensure that the main breaker in the drive cabinet is in the off
position. It is located in the lower right-hand corner of the
cabinet.