PS Magazine - TB 43-PS-615
PS, The Preventative Maintenance Monthly
ISSUE 615
FEBRUARY 2004
M109-Series SP Howitzer, M992A2 Ammo Carrier…
Y
ou’re going to have a hard time checking the engine oil level on your
howitzer or ammo carrier with replacement dipstick, NSN 6680-00-257-
1396. It’s a little too short for the job.
You’ll need to order dipstick, NSN 6680-01-503-4823, instead. That
dipstick is a little long, so you’ll need to modify it according to the engine
model in your vehicle.
1.3"
0.8"
36.5"
34.40"
LF
1.5"
1.0"
36.25"
33.75"
LF
PS 615
FEB 04
9
AVLB…
Gimme
a Brake!
W
hat could be worse than driv-
ing an AVLB down a steep slope?
How about starting down the
slope only to discover you have
no brakes? That’s exactly what
can happen if the brake line
quick-disconnect (QD) separates
during operation.
Sometimes the QD’s male
coupling, NSN 4730-01-074-
8282, and female coupling, NSN
4730-01-074-9584, don’t con-
nect properly. They can pop
loose during operation, leaving
the AVLB brakeless.
Mechanics,
check the
brake line QD
to make sure
it’s completely
seated.
Here’s how…
1.
Open the rear grill doors.
2.
Remove the exhaust shroud and look for the QD. It’s
located on the back left side of the transmission.
3.
Clean off any dirt and fluid that’s collected on the QD.
4.
Disconnect and clean
the male and female
couplings. Make sure
there is no dirt or fluid
on the locking hex.
5.
Reconnect the QD.
Use an inspection mir-
ror to check the bottom.
The locking hex must
be fully engaged in the
locking collar.
6.
Pull on and shake the hose to make sure the QD
doesn’t pop loose.
Check out TACOM Safety-of-Use Message 03-011
(051844Z Aug 03) for the complete scoop.
Locking hex showing?
QD may come apart
Locking hex
must fully
engage
locking
collar
time to
check your
engine oil
level!
first, you’ll
have to get me
another new
dipstick!
mine’s
too
short!
For models 7083-
7391, 7083-7396,
and 7083-7399, cut,
bevel the edges and
add markings like so:
For models 7083-
7395 and 7083-7398,
cut, bevel the edges
and add markings
like this:
Make a note of the new
dipstick NSN as
item 2
in the Bulk section of
TM 9-2815-202-24P until
the tm can be updated.
I’ve
got no
brakes!
watch
out!!
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