PS Magazine - TB 43-PS-702
PS, The Preventative Maintenance Monthly
ISSUE 702
MAY 2011
17
PS 702
MAY 11
FWD
Dear Editor,
We’ve been having problems with the rear support legs seizing up on our
HET trailers.
It turns out that water
is seeping past the drive
screw and into the inner
tube of the support leg.
During cold weather, that
water freezes and expands
the tube enough that it’s
almost impossible to raise
or lower.
Avoid drilling holes on the
front or back of the support
leg. Dirt and mud will just get
into the holes and plug them.
SGT Justin Deneff
CSMS #57
Camp Douglas, WI
Editor’s note:
You really drilled it
with that idea, Sergeant
Deneff! Good job!
You need it
because the liner
will not only absorb
battery acid but
neutralize it as well.
Get a roll of ¼-in
thick liner with
NSN 6160-01-389-
1966. Cut it to the
dimensions you need
to line a vehicle’s
battery box. This
13-in x 100-ft roll
of liner will take
care of all the
vehicles in your
unit’s motor pool.
..
and then some.
Change the liner
when it becomes
soaked with battery
acid or starts to
deteriorate.
We fixed this problem
by drilling two drain holes
at the bottom of each
support leg. Here’s how:
Lower the support leg all
the way to the ground.
Using a
1
/
2-in bit,
drill one drain hole
through the outboard wall
of the inner retract tube
on both the curb and
street sides of the
support leg.
Center the
holes and
drill them
1 inch above
the top of the
foot plate.
drain water before it
FREEZES
!
Vehicles…
BATTERY BOX LINER
Mechanics,
use a battery
box liner for
absorbing
battery acid in
your vehicle’s
battery box.
I Don’t
get it! the
support
leg won’t
lOwer!
maybe it’s
frozen?
Water seeps past drive screw
and into support leg
Drain holes release water before it can freeze
1”
3”
M1000
HET
Semi-
Trailer…
.50 + .06
thru
702.16-17.indd
1-2
4/7/11
11:08 AM
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