-5.1-
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
warning 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.
Severe injury or death can result if someone falls from the radar antenna mast.
Notice for technicians
The display unit designed to run on AC voltage has a
switch (S2) at its rear to cut off 115/230 V supply from
internal circuits. Turn off the switch when accessing
inside the display unit.
Switch S2
5.1 Periodic Maintenance Schedule
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.
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 a
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.
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