PS Magazine - TB 43-PS-738

PS, The Preventative Maintenance Monthly

ISSUE 738

MAY 2014
PS Magazine - TB 43-PS-738 - Page 10 of 33
16
PS 738
MAY 14
17
PS 738
MAY 14
Dear Half-Mast,
I’ve heard that the
HEMTT -A4 steering
gear that comes with
NSN 2530-01-573-
6573 is obsolete. How
do I get a replacement?
SFC L.H.
Dear Sergeant L.H.,
Order master steering gear, NSN 2530-
01-580-3591, and slave steering gear, NSN
2530-01-580-3539, when it’s time to replace
your truck’s steering gears. The new gears are
designed for heavy-duty use on up-armored
vehicles. You’ll have to install both new
steering gears to replace the old steering gear
on your HEMTT -A4.
You want your steering to work correctly, so
don’t
mix the old and new steering gear.
And if your vehicle was manufactured before
2010, you’ll also need to use the installation
kit that comes with NSN 2530-01-598-3710.
I
f you try to tow an M1101 or M1102 light
tactical trailer (LTT) with your MRAP M-ATV,
you’ll quickly find the trailer’s lunette is too low
to fit the pintle. The hookup makes the trailer
tilt backwards instead of being level.
That tilt throws off the center of gravity. And
there’s not enough tongue weight to stabilize
the trailer. That makes it dangerous to tow.
There’s now an adjustable lunette available
that allows for level hookup between the
M-ATV and LTT. There are six different height
adjustments, so you can choose the correct
position for your M-ATV’s pintle height and tire
settings.
The adjustable lunette comes in a kit that
includes a height adjustment assembly, safety
chain extensions, storage brackets for the
old lunette, and installation instructions. The
lunette is part of the mortar stowage kit, NSN
This lunette is only for the M-ATV and has not been tested with other vehicles. So don’t
experiment with other trucks!
HEMTT -A4…
New StEring Gear
Now Available
M1101/M1102 Light Tactical Trailer (LTT)…
Adjustable Lunette
Now
Available
new
steEring
gears are
available!
read on…
time to order
you a
new
steering gear.
make sure
you order the
right
parts!
I don’t
wanna sTeer
you WroNg!
Old lunette made trailer tilt at hookup
New adjustable lunette gets rid of tilt
uh… is this
tiltEd trailer
safe to load?
this
adjustable
lunette
makes your
trailer nice
and level…
and safe to
load!
NO!
738 16-17.indd
1-2
3/26/14
10:31 AM
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