PS Magazine - TB 43-PS-621

PS, The Preventative Maintenance Monthly

ISSUE 621

AUGUST 2004
PS Magazine - TB 43-PS-621 - Page 4 of 33
C
rewmen, the cargo hatch on your M2/M3-series Bradley is quite heavy. That’s
why it comes equipped with a leaf spring system to help open it to the pop-up, TOW
load, upright and full-open positions.
Unfortunately, like everything else, those leaf springs are going to wear out or
break. When that happens, the leaf springs don’t pick up any of the weight. And you
can hurt your back trying to do it all on your own.
To test the leaf springs, pull down on the hatch handle and push the latch release
lever forward. Slowly release the downward pressure on the hatch handle. The hatch
should move to the pop-up position.
C
hecking the differential bolts on your Stryker is a before- and after-operation
PMCS check, drivers.
And it’s an important one. Vibration and collisions with brush, rocks and other
debris can be a bolt buster. And that’s enough to make you lose a differential.
Each differential has 8 bolts, nuts and washers holding it in place. Each vehicle
has 4 differentials, so you have a total of 32 sets of hardware to check.
Look for shiny spots around the nuts and
washers that indicate loosening bolts. If you find
one, report it.
PS 621
5
M2/M3-Series Bradleys…
Cargo Hatch
Loses Its Spring
PS 621
AUG 04
4
Stryker…
Beware of Bolt Busters
Mechanics, add a few drops
of sealing compound, NSN
8030-01-014-5869, to the bolt
threads before torquing the
nuts to 58-64 lb-ft. That’ll
help keep the nuts in place.
Replace missing bolts with
new nut comes with NSN
washer with NSN 5310-01-
265-6333.
What’s
the matter
with
you,
buddy?
I think I
dropped a
differential
back there!
Why
didn’t you
check my
bolts?
Look for shiny spots
around nuts and washers
While pulling down on
hatch handle, push latch
release lever forward
what
the heck
happened
to you?
if the hatch
doesn’t
move to the pop-up
position, let your
mechanic know. He’ll
replace the leaf
springs using NSNs
I sure don’t
remember it
being
that
heavy last
week!
I had to
open the
cargo hatch.
621. 04-05 (C)
7/3/04
12:31 PM
Page 1
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