PS Magazine - TB 43-PS-694

PS, The Preventative Maintenance Monthly

ISSUE 694

SEPTEMBER 2010
PS Magazine - TB 43-PS-694 - Page 6 of 33
8
PS 694
SEP 10
9
PS 694
SEP 10
Y
ou know how it goes, mechanics. You’re pulling the pack on a Paladin or ammo
carrier. Everything’s going smoothly until something catches. You look and look,
trying to fgure out where the pack is hung up. Frustration mounts, your blood
pressure rises, until.
..
Well, let’s keep this PG-rated, shall we?
One o± the most common snagging points when pulling a pack is the remote
control lever, NSN 2530-00-179-5482, on the brake pedal’s control linkage. I± you
±orget to remove the lever frst, it snags on the pack’s engine/transmission brace. That
powerpack is going nowhere.
So do yoursel± and your blood pressure a ±avor. Make sure you remove the remote
control lever be±ore pulling the powerpack, just like the TM says.
Editor’s note:
An excellent suggestion, gentlemen. The procedure for replacing
the brake hose is in WP 0045 00 of TM 9-1015-252-34 (Aug 06, w/Ch 1, Feb 08).
Dear Editor,
While performing scheduled services, we’ve noticed that the M119A2’s
brake hose, NSN 4720-01-344-6034, is badly rusted about 80 percent
of the time. Those rusty hoses can easily burst during brake tests and
normal operation.
We recommend that
operators keep a close
eye on this brake hose
and that it also be
checked during every
service.
The brake hose is
easy to reach. Just
open the right-hand
(curbside) access
cover, PN 12591232,
on the underside of the
trail frame. Then use a
flashlight to look at the
brake hose inside the
frame chamber. If it’s
rusty, get the brake hose
replaced right away.
Wilfried Heitzer
Jochen Rankel
Michael Schwabe
Peter Kohler
Gerhard Scherm
Hans-Juergen Pirner
Maintenance Activity Vilseck, Germany
Pulling Pack
=
Plenty of Problems
M109A6 Paladin, M992A2 Ammo Carrier…
Pulling Pack
=
Plenty of Problems
M119A2 Towed Howitzer…
Burst Brakes
a Real
Bummer
Remove access cover from
underside of trail frame
Use
flash-
light to
check
brake
hose for
rust
I’ve
got no
brakes!
look
out!
Remember to remove
remote control lever…
…or it snags on engine
/
transmission brace
uh-oh,
looks like
simmons is having
trouble pulling a
powerpack again!
@#$%^&*!
694.08-09.indd
1-2
8/4/10
11:27:30 AM
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