PS Magazine - TB 43-PS-701
PS, The Preventative Maintenance Monthly
ISSUE 701
APRIL 2011
14
PS 701
APR 11
15
PS 701
APR 11
That means you have to get down on
your hands and knees and eyeball the
differential at least weekly. Look for oil leaks
coming from around the bolts and for any
drips on the ground directly below. Enough
of an oil leak will cause the differential to
burn out. No differential, no mission!
So check for loose bolts by using a wrench
to give ‘em a tug. Find a loose bolt or an oil
leak? Report it.
Your mechanic can remove the bolt and
add a dab of sealing compound, NSN 8030-
01-158-6070, to its threads and re-torque it
to 74-96 lb-ft. By the way, this info will be
added to the PMCS in TM 9-2355-319-23.
O
perators, the air flter canister on your HMMWV takes a lot oF knocks and bangs
from rocks thrown up by the front tire.
The retaining ring that holds the canister end in place is especially prone
to damage. The metal that protects the ring’s retaining mechanism is thin and
bends easily.
If the metal bends outward,
it can’t hold the mechanism’s
square nut in place. The retaining
ring loosens, letting in dirt and
sand. Before you know it, the
flter is completely clogged and
the engine overheats.
Take a quick look at the
retaining ring before operation.
If the ring is loose, tighten it.
Then use pliers to squeeze the
metal tight around the retaining
mechanism’s square nut. That’ll
help keep the retaining ring
from loosening again.
Caiman Plus MRAPs…
sneaky axle leaks
Torque these bolts
to 74-96 lb-ft
the intermediate
axle on Caiman
Plus MRAPs are
known to leak.
..
and leak.
..
and
leak!
I’m
free!
Shhh!
let’s be a
little more
sneaky
about it!
That’s because
the differential’s
carrier bolts come
loose,
often on a
weekly
basis.
HMMWV…
Keep RetaininG
Ring in Place
Damage to metal here lets retaining ring work loose
my air filter
{cough}
canister’s
retaining ring is
loose!
{cough
cough!}
{cough
cough!}
all this sand is
going straight
{cough}
into my
air filter!
701.14-15.indd
1-2
3/1/11
5:46 PM
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