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-4.5-
4.5 Maintenance
This radiotelephone equipment is designed and manufactured to provide years of intended
performance. For this, a regular maintenance program should be established and should at least
include the items listed in below:
Item Check Point Remedy/Remarks
Whip antenna Check for physical damage, corrosion and
water leakage
Replace damaged parts.
Wire antenna Check that antenna is properly spanned
and separated sufficiently apart from
metallic structures.
If necessary, re-span the
antenna.
Insulators for
antenna
installation
Check for salt water accumulation on
insulators.
Check that connection at lead-in insulator
is tight and rust-free.
Replace damaged insulators.
Remove salt water deposits.
Clean with fresh water, then dry.
Remove rust, then tighten bolts
and lock nuts. Cover metallic
surface with sealing compound.
Antenna coupler Check contact at
* Antenna terminal
* Ground connection
* Coaxial cable
* Control cable(terminal board)
Check that coupler lid and cable glands
are firmly secured.
Check for physical damage, corrosion and
salt water deposits.
Tighten loosened connections.
Fasten lid firmly and evenly to
prevent water leakage.
Replace if damaged.
Transceiver Check contact at
* Antenna cable
* Ground connection
* Power cable
* Control cable
Confirm that there are no objects on the
top of the cabinet.
Tighten loosened connections;
remove foreign material from
connectors.
Remove objects to prevent
overheating.
Power Amp
Unit (PA-2500)
(for 250 W set)
Check contact at
* Coaxial cable
* Antenna cable
* Power cable
Confirm that there are no objects on the
top of the cabinet.
Tighten loosened connections;
remove foreign material from
connectors.
Remove objects to prevent
overheating.
Power supply Check that supply voltage at transmission
is within the rated range. (21.6 to 31.2
VDC at the power connector)
If not within the range, call for
service, Low voltage may cause
erratic operation.