PS Magazine - TB 43-PS-598

PS, The Preventative Maintenance Monthly

ISSUE 598

SEPTEMBER 2002
PS Magazine - TB 43-PS-598 - Page 12 of 33
Hitting the Road
Before you hit the road or
traverse, make sure all doors
are latched and shut. If you
forget just one door, it can be
torn off and then the electro-
magnetic interference shield
is ruined.
Fold the shroud complete-
ly flat before you lower the
radar. If it is bunched up, it
can damage the roof covers.
PS 598
SEP 02
18
Any time you’re rotating and lose power, don’t power up again until you inspect
the slipring for tangled cables or arcing. A cable may have fallen out of the cable
tray or the tray itself may be loose. If you continue to operate, cables rip out or the
whole slipring burns up. A good check is to manually rotate the radar to see if the
cables are clearing.
Radiating
Before you radiate, double check that the covers have been removed from the
comparator assembly and the antenna. If a cover’s left on, it reflects the RF ener-
gy back down the wave guide and the radar becomes a microwave oven, cracking
or damaging the waveguide window and other components.
16-19 MS 6559/G
Cap the cables and radar connectors as soon as you disconnect them. Otherwise,
dirt and sand clog the connectors. If the caps have disappeared, tell your repairmen
and wrap the connectors in plastic.
Cable grips will help these big cables last by supporting the cables’ weight.
Order grips with NSN 5120-01-213-9538.
Use
caps.
cable
grips
save
cables.
eyeball the
slipring for
tangled
cables.
fold the
shroud
completely
flat!
Never muscle antenna elements in place. An element should go in with just slight
pressure. If it doesn’t, turn the element and try again. Forcing an element bursts the
antenna socket. The whole antenna has to be taken apart to fix one socket.
never
force
antenna
elements.
make sure
antenna and
comparator
assembly are
uncovered
before
radiating.
598. 18-19 (C)
7/29/02
2:24 PM
Page 1
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