Maintenance Handbook

SBS-800 Series Operator & Planned Maintenance Handbook
Chapter 9: Planned Maintenance
KH-1601-2 Issue 6
Page 64 of 80
TRANSCEIVER/GEARBOX INSPECTION
Task
Description
Pass
Fail
General
cleaning
Clean all exterior surfaces with a soft cloth moistened in a mild non-
abrasive soap solution.
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Physical
inspection
Ensure that all securing bolts for the transceiver/gearbox and
antenna are secure and show no signs of severe corrosion or
damage. Pay particular attention to the four bolts that hold the
transceiver gearbox assembly to the deck/mounting plate.
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Inspect the gearbox including all mounting points for any signs of
stress damage.
SEVERE WEATHER
This inspection should be carried out at the earliest safe opportunity
after the system has been exposed to severe or adverse weather
conditions.
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Check that cable glands, cable entries and waveguide couplings are
securely fastened and appear to be waterproof.
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Within reason and where safe to do so, check all accessible or
exposed cables for any signs of damage and ensure they are safely
secured into/onto the cable tray or trunking.
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The system should be checked to ensure that there is no obvious
external damage or potential fault conditions that could lead to a
general failure of any part of the system.
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Check for any signs of oil leaks from the gearbox assembly.
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Earth
bonding
and
continuity
Ensure that the earth bonding nuts and bolts are tight and free from
corrosion. If corrosion is present, clean and re-terminate as
described in Section 9.4.
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Test the earth bonding conductivity by attaching one lead of the test
equipment
note
to earth/chassis and the other to an unpainted part of
the equipment under test.
Check earth bonding for continuity, the resistance should not exceed
0.1 ohms. If a test fails, investigate the bonding, rectify (see
Section 9.4) and repeat the test.
Note: Safety ohmmeter, bridge Megger or Multimeter.
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Desiccator
For units fitted with a desiccant sachet, this should be replaced
annually or every time the door hatch is opened. Part no. 55-100-
397-001 is available through Kelvin Hughes.
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