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-5.1-
Chapter 5 MAINTENANCE
WARNING
Do not open the equipment.
Hazardous voltage which can
cause electrical shock exists
inside the equipment. Only
qualified personnel should
work inside the equipment.
Turn off the radar power
switch before servicing the
antenna unit. Post a warn-
ing sign near the switch
indicating it should not be
turned on while the antenna
unit is being serviced.
Prevent the potential risk of
being struck by the rotating
antenna and exposure to
RF radiation hazard.
Wear a safety belt and hard
hat when working on the
antenna unit.
Serious injury or death can
result if someone falls from
the radar antenna mast.
Periodic checks and maintenance are important for proper operation of any electronic systems.
This chapter contains maintenance instructions to be followed to obtain optimum performance
and the longest possible life of the equipment.
5.1 Periodic Maintenance Schedule
Interval
Check point
Check and measures
Remarks
3 to 6
months
Exposed nuts and
bolts on antenna
unit
Check for corroded or loosened
nuts and bolts. If necessary,
clean and repaint them thickly.
Replace them if heavily
corroded.
Sealing compound may be used
instead of paint. Apply a small
amount of grease between nuts
and bolts for easy removal in
future.
Antenna radiator Check for dirt and cracks on
radiator surface. Thick dirt
should be wiped off with soft
cloth dampened with fresh
water. if a crack is found, apply
a slight amount of sealing
compound or adhesive as a
temporary remedy, then call for
repair.
Do not use plastic solvent
(acetone) for cleaning. If you need
to remove ice from antenna unit,
use a wooden hammer or plastic
head hammer. Crack on the unit
may cause water ingress, causing
serious damages to internal
circuits.