PS Magazine - TB 43-PS-745
PS, The Preventative Maintenance Monthly
ISSUE 745
DECEMBER 2014
36
PS 745
DEC 14
Dear Editor,
While repairing and maintaining the M142 HIMARS at Ft Sill, we’ve come up
with a few tips for keeping it firing and rolling:
Check the spanner nuts
on the cab’s front support
assembly at least quarterly.
They are Items 7 and 8 in Fig
1240
in
TM
9-2300-310-
14&P.
When
replacing
cabs,
we’ve found the nuts so loose
that they could be turned by
hand. That means the cab could
slide around on the front support
assembly. If you find loose nuts,
apply sealing compound, NSN
before
torquing them to 138-163 lb-ft.
Hands off the ethernet
bus
terminator
plug.
The
plug is part of the fire control
system and lets the components
communicate with each other.
Leave the plug alone because it’s
very easy to damage its pins.
Then you’ll get faults when you
try to operate.
Make sure the cab lock is
unlocked before you lift the
cab.
If the lock hasn’t released, the
cab and the locking mechanism can be
damaged. Just check to make sure
the cab lock pin is sticking out. That
indicates the cab is unlocked and OK
to lift. It’s a good idea to paint the
pin a bright color so it’s easy to see.
For more info, see the raising/lowering
work package in the -14&P.
Load and unload pods straight up and down.
If you do the job at an
angle, you will soon be replacing the lifting cables.
Stay out of the wash
rack.
The starter isn’t
waterproof. Going through
the wash rack can force
water inside the starter.
Rust sets in and soon
the starter won’t work.
It’s a good idea to start
HIMARS at least weekly.
That
helps
the
starter
keep starting.
Pay attention to the
batteries.
They need to
be checked at least weekly
for corrosion, even if the
HIMARS
has
just
been
sitting. A quick once-over
with a wire brush is usually
enough.
Batteries
are
part of the weekly PMCS
for both the launcher and
vehicle.
CW2 John Kuehny
SPC Brenton Bush
MATES
Ft Sill, OK
Editor’s note:
High fve For your
HIMARS tips. Thanks For the help.
hot tips for
himars
hot tips for
HIMARS
Check spindle nuts on cab hinge
rod quarterly for looseness
Leave
ethernet bus
terminator
plug alone
Check
that cab
lock pin
is sticking
out
before
lifting
cab
Check batteries
at least weekly
for corrosion
even if HIMARS
has been just
sitting
I don’t
care
how
dirty I
am! I am
not
going
through
this wash
rack!
Load and
unload
pods
straight
up and
down
These are
definitely
some
hot tips
for your
HIMARS!
High five
on that,
Half-
Mast!
745 36-37.indd
1-2
10/27/14
5:16 PM
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