PS Magazine - TB 43-PS-557
PS, The Preventative Maintenance Monthly
ISSUE 557
APRIL 1999
PS 557
2
APR 99
f your HMMWV is fitted out with
special equipment—a rear-mounted ra-
dio, a commo shelter, an ambulance or
an arctic personnel carrier—listen to
this: Turning off the master switch on
the dashboard does not turn off the bat-
tery power to the equipment in the
back!
Make sure
all
electrical switches in
the vehicle are off before you leave
the truck. If you don’t know where all
of them are, have a medic or specialist
show you what to look for.
You’re doing this for your own bene-
fit, because otherwise you’ll be stuck
SGT Lyle Beard of the Oregon
National Guard got tired of loose
side mirrors on his HMMWVs.
So, he got a piece of 1-in PVC
electrical conduit and cut a couple
of
1
/
8
-in spacers from it. After re-
moving the mirror and mounting
legs, he put the spacers under the
mirror mounting leg at the top and
bottom.
HMMWV . . .
slave starting if the batteries are too
weak to start.
One switch often left on is for the
rear overhead lights in the arctic per-
sonnel carrier. It has three positions.
Only one—the middle position—turns
the lights out when the rear door is
closed.
Homemade
PVC washer
1
/
8
"
Window post
Spacer
Mirror bracket
The spacers provide a bigger
locking surface for the mounts, so
the mirrors are held tighter.
Once Sergeant Beard retightened
the screws mounting the mirror to
the window post, he no longer had
loose mirrors.
The PVC conduit can be painted
to match your HMMWV’s camou-
flage pattern.
Install like so:
what
gives
? your
battery was fine
last night
!
yeah, but
you left
special
equipment
on
all night
!
1"
PS 557
3
my mechanic
needs to
add
spacers
before
i lose my mind!
Arctic
personnel
carrier
light
switch
in OFF
position?
PS 557
2
APR 99
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