PS Magazine - TB 43-PS-744

PS, The Preventative Maintenance Monthly

ISSUE 744

NOVEMBER 2014
PS Magazine - TB 43-PS-744 - Page 6 of 33
8
PS 744
NOV 14
9
PS 744
NOV 14
Dear Editor,
We’ve discovered that the auxiliary starter relay mounting brackets on
some of our new M1157A1P2 10-ton dump trucks were bent at the factory.
During installation, the top washer
is
catching
against
the
housing
bracket. As the nut is tightened, the
bracket bends upward. Unfortunately,
that lets moisture inside the solid
relay, NSN 2920-01-361-5802.
In cold weather, the water freezes
and keeps the truck from starting
until the relay thaws.
This isn’t something you’ll find in the
PMCS checklists. We only discovered
it ourselves during initial services.
Can you let folks know to keep an
eye out for this problem? The auxiliary
starter relay is on the left side of the
engine and just to the right of the
steering fluid reservoir. It’s mounted
to the back side of the bracket, so
you’ll need to stand on the tire (or a
maintenance stand) and use a mirror
to get a good look at the relay.
Mr. James S. Carmack
TACOM/FMX Engineer Support
Ft Leonard Wood, MO
Editor’s Note:
Thanks for the heads up, Mr. Carmack! Operators and mechanics,
be on the lookout for this problem on all FMTV LTAS -A1P2 trucks.
Right now, your best option is to replace the solid relay and then submit a PQDR.
Submit the PQDR at:
Dear Half-Mast,
How do you install
the M66 ring mount
on M1083 and
M1083A1P2 trucks?
The information in TM
9-2320-366-24P
is confusing.
CW2 S.S.
Dear Chief,
Use ring installation kit, NSN 1005-01-381-5431, to
mount the M66 on the FMTVA0/A1 trucks. That does
not include the gunner’s restraint system (GRS), so get
the GRS with NSN 2540-01-569-8599. The GRS for the
LTASA1P2 is NSN 2540-01-571-8576. The GRS for the
LSACAO/A1P1 is NSN 2540-01-569-6578.
Dear Half-Mast,
We have several older legacy FMTV trucks without armor. Is there a gunner
restraint system (GRS) for them? We can’t find anything.
CW2 M.F.
Dear Chief,
Yes there is. Order the GRS for the soft shell cab A0 and A1 FMTVs with NSN
2540-01-569-8599. Instructions for installing the GRS come with it.
You can watch a video of how to wear
the GRS at:
Click on Videos, then scroll through
Training Skills Videos until you ±nd The
Gunner’s Restraint System.
FMTV LTAS -AIP2 Trucks…
Bent Bracket
Can
FREEZE UP
Relay!
FMTVs…
How to
Mount
an
M66
Mount?
grs
Available for
fmtvs
without
Armor
We’ve got your
new ring
mount,
but we don’t know
how to install it. the TM
wasn’t much help.
Ya gotta get the
ring installation
kit!
half-mast
has the wORd.
Washer
catches
bracket
and bends
it when
nut is
tightened
Relay is
mounted
to back
side of this
bracket
I don’t get it!
you
started just fine
this morning.
that was before
it GOT So
cOld!
now my auxiliary
starter relay is
FrozEn!
744 08-09.indd
1-2
9/30/14
3:41 PM
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