TABLE 4-1. PERIODIC INSPECTION AND PREVENTIVE MAINTENANCE SCHEDULE (CONT)
a. Check for loose or damaged cables and
b. Check fuses, switches, and relays.
Clean and burnish contacts.
c. Check the radome, tower, and antenna.
a. Disconnect all cables and inspect and
b. Blow the dust out of the interior of all
c. Check for loose mounting screws or other
mounting hardware. Do not exert sufficient force
to damage threads when tightening.
d. Check for corrosion. If present, remove
with sandpaper, polish, apply zinc chromate,
e. Inspect antenna pedestal and elevation
drive assembly drive motors for moisture
and water seepage. Examine brushes and
replace as required.
f. Check all gear assemblies for dirt, wear,
g. Check level of pedestal.
h. Check each unit for signs of excessive heating,
indicated by burned resistors or melted wax.
i. Check all potentiometers for wear, poor
contact, or noise.
j. Inspect each unit for loose or broken connections,
damaged parts, dirt, or signs of excessive wear.
k. Clean all slides on the electrical units and
apply a thin coating of vaseline or equivalent.
l. Check the radome, tower, and antenna.