Bird Technologies 8320 - Manual (Page 21)

Chapter 5
Maintenance
Troubleshooting
PROBLEM POSSIBLE CAUSE REMEDY
Leakage of coolant oil
around clamping
bands or radiator
housing.
Clamping band not
tight.
Tighten slightly with a
screwdriver.
Faulty input or output
O-Ring.
Replace
Excessive overheating
of the radiator.
Transmitter power too
high.
Reduce transmitter
power.
Faulty RF section as-
sembly.
Replace
Coolant oil level too
low.
Add more coolant oil
to the radiator.
High or low DC resis-
tance.
Faulty RF input con-
nector.
Replace
Loose RF input con-
nector.
Tighten with a screw-
driver.
Faulty RF section as-
sembly.
Replace
Cleaning
Outside
Surfaces
The outside surface of the attenuator should be wiped free
of dust and dirt when necessary. The principle maintenance
required by the operator will be to periodically wipe the ac-
cumulated dust and lint off of the radiator fins. Excessive
collection of dust and lint on the cooling fins will interfere
with the efficient dissipation of heat. If the teflon insulator
or metallic contact surfaces of the connectors should become
dirty or grimy, wipe them off with a soft cloth. Use a contact
cleaner that is self-drying and nonresidue forming to clean
the inaccessible internal parts.
Inspection
Periodically inspect the clamping bands around the connec-
tors, for signs of possible coolant leakage, see Preventive
Maintenance for proper action. Check the connector assem-
bly for tightness. Inspect the cooling fins for accumulation of
dust and lint and the painted metal parts for signs of corro-
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