PS Magazine - TB 43-PS-615
PS, The Preventative Maintenance Monthly
ISSUE 615
FEBRUARY 2004
I
f your vehicle or trailer has an under-inflated tire with a split rim wheel, what’s
your next step, drivers?
That depends on just
how
under-inflated the tire is.
If the rim appears undamaged and
the tire still has more than 80% of its
TM recommended inflation pressure,
you can inflate the tire while it’s still
on the vehicle. Just make sure you use
the 10-ft tire inflation gauge, NSN
4910-00-441-8685, from the No. 1 or
No. 2 Common shop sets. That allows
you to stand out of the danger area just
in case the split rim should go flying.
If, however, the tire has 80% or less
of its TM recommended inflation pres-
sure, call your mechanic. He’ll need to
remove the valve core and completely
deflate the tire. After inspecting the
tire and rim for damage, he can safely
re-inflate it in a tire cage.
PS 615
FEB 04
11
Tires…
M
echanics need a bigger tire inflation cage to stay out of harm’s way, especially
when they have to inflate big tires, meaning ones larger than HEMTT tires.
NSN 4910-00-025-0623 gets a cage 76 inches long, 32 inches wide and 78 inches
high. It weighs 1,600 pounds and is big enough for most construction and material
handling equipment tires.
The best thing is, the cage is available to the Army through the supply system.
For those of you who inflate HEMTT, PLS and other smaller military tires, you can
use tire cage, NSN 4910-01-373-0267. It’s 40 3/4 inches long, 29 inches wide and 60
inches high. It weighs 375 pounds.
Do not fasten the cage to the floor of
your shop. That prevents the steel plate
bottom from flexing. If the plate cannot
flex, explosive forces are concentrated on
the cage bars and they can fail, releasing
parts of the wheel rim.
Keep the cage at least 3 feet from any
wall, too. That helps keep the cage from
moving if a large volume of air bounces
off the wall—and back toward the cage—
when a rim separates.
That’s the scoop
from Para 2-3b(3)
in TM 9-2610-200-14,
Care, Maintenance,
Repair and
inspection of
Pneumatic Tires
and inner Tubes.
hmm… looks
like you could
use some air in
that tire.
better
call a
mechanic.
this
larger
cage
works
great!
it’s good
we’ve got the
big cage for
this bad boy!
it’s a little
low to be
inflated in
place.
Never
Tire of Tire Safety
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