PS Magazine - TB 43-PS-565
PS, The Preventative Maintenance Monthly
ISSUE 565
DECEMBER 1999
PS 565
15
DEC 99
PS 565
14
DEC 99
echanics, when you bend over the engine compartment to make a repair on
that M113A3 vehicle, be careful not to cause any
more
damage.
The transmission oil pressure sending unit,
NSN 5930-00-944-1660, is badly positioned
for engine work. If you press or lean against
it, the pin inside snaps.
Replacement costs for the unit aren’t
much—about $17. But your carrier is NMC
until you replace it. So keep your elbows,
arms and bellies
off
the sending unit.
M113A2 FOV . . .
Out of the Loop
D
rivers, don’t let the engine wiring harness on your M113A2 vehicle get out of
the loop—the loop clamps, that is.
Vibration loosens the two loop clamps that hold the wiring harness in place.
When the clamps loosen enough, the wiring harness flops around until it gets
caught in the water pump pulley.
It won’t take long for the pulley to chew up a perfectly good wiring harness,
so check the clamps during your
before-operation PMCS. Report
loose clamps to your mechanic
for tightening.
He’ll replace damaged clamps
with NSN 5340-00-200-3041 for
the larger clamp and NSN 5340-
00-200-3045 for the smaller one.
Dear Half-Mast,
Item 38.1 on Page 2-80 of TM 9-2350-264-10-1 says to inspect the
M1A1 tank’s race ring wiper seal to make sure it’s not protruding from
the race ring.
Problem is, no one in our unit knows where to look. Any clues?
PFC J.K.Y.
Dear Private J.K.Y.,
The felt wiper seal
is actually located on
the outer edge of the
race ring. You won’t
be able to see it from
inside the turret. If
the seal is damaged,
you will be able to
see it protruding around the
outside
of the turret.
If you find a protruding seal,
call in your mechanic.
M1A1 Tank . . .
M113A3 FOV . . .
Check loop clamps for looseness
Use care working around sending unit
Check race ring between turret
and hull for protruding seal
try
looking
between
my
turret
and
hull
.
dang!
i've done
all
the after-operation
checks,
except
the
race ring wiper
seal
.
where
the heck
do i find
that?
PS 565
14
DEC 99
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