PS Magazine - TB 43-PS-699

PS, The Preventative Maintenance Monthly

ISSUE 699

FEBRUARY 2011
PS Magazine - TB 43-PS-699 - Page 7 of 33
11
PS 699
FEB 11
Fortunately, communication systems used in HMMWVs, such as SINCGARs,
Blue Force, Warlock, and VIC III, are water resistant. But they aren’t waterproof and
they
can’t
be submerged in water and survive!
M1165s and M1165A1s use a roof plug
in place of the turret and some units have
reported leaks around the plug area. The
solution was a design change that added
water-sealing foam washers and closed cell,
water-resistant insulation foam to plug the
leak. This change was made in production, so
your M1165 HMMWV should be good to go.
A few simple precautions can stop turret
drip drops.
Preventive Measures
2.
Whenever possible, keep the
turret hatch closed.
That will
greatly reduce the amount
of water coming into the
vehicle from rain or snow.
Put a Stop to
Turret Drip Drop
1.
During winter
months, keep the
roof free from
snow or ice
buildup.
If you
don’t, water will
leak into your
vehicle when
snow and ice melt.
And, water
seeping through
the bearings can
refreeze,
damaging the
turret bearings.
3.
Cover the top of your
HMMWV with a tarpaulin,
can keep rain, snow and ice
from reaching the turret
area if the vehicle is parked
or idle for extended periods.
you may
not be
able to
change
your
hmmwv’s
design,
but you
can reduce
turret
leaks.
some water from
rain or melted ice or
snow will enter the
vehicle through the
turret’s bearings.
that’s
normal.
your
hmmwv’s
turret isn’t
designed
to be
watertight,
even when
the hatch is
closed.
man,
this rain
is pouring
down!
I’m glad
we’re staying
dry in this
hmmwv!
maybe I
spoke too
soon…
HMMWVs…
699.10-11.indd
1-2
12/20/10
3:22 PM
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