Maintenance Handbook

SBS-800 Series Operator & Planned Maintenance Handbook
Chapter 9: Planned Maintenance
KH-1601-2 Issue 6
Page 63 of 80
STANDARD ANTENNA SUB-SYSTEM INSPECTION
Task
Description
Pass
Fail
Cleaning
Clean the antenna facia with a soft cloth moistened in a mild non-
abrasive soap solution.
Note
1
: Cleaning the antenna is important as the system performance can be
degraded if the antenna transmission face becomes obscured by dirt.
Note
2
: The antenna facia must never be painted.
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Physical
inspection
Ensure that all external fastenings are tights, secure and show no
signs of severe corrosion or damage.
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Check that waveguide couplings are securely fastened and appear
to be waterproof.
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The antenna should be checked to ensure that there is no obvious
external damage, cracking or potential faults that could lead to a
general failure of any part of the system.
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Check the antenna for signs of excessive vertical end play.
If the end play is more than +/-10mm please consult with Kelvin
Hughes.
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CAUTION
The following tests should only be undertaken when it is safe to manually rotate the antenna i.e. the
system is fully isolated and disconnected from all sources of power and the antenna can be safely
accessed.
Do not use excessive force or take unnecessary risk when turning the antenna such as reaching too
far or leaning outside safety guardrails.
THIS TASK SHOULD BE DISREGARDED IF THERE ARE ANY SAFETY CONCERNS.
Manual
antenna
rotation
As noted above and where safe to do so manually rotate the
antenna and ensure that it is free from obstruction and turns
smoothly
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Antenna
not
accessible
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