PS Magazine - TB 43-PS-683

PS, The Preventative Maintenance Monthly

ISSUE 683

OCTOBER 2009
PS Magazine - TB 43-PS-683 - Page 8 of 33
13
PS 683
OCT 09
Y
ou know what a range
is, but how ‘bout a load
range E? That’s the new
tire for up-armored
HMMWVs that helps bear
heavier vehicle weights
and payloads.
The load range E tire
(L/R E), NSN 2610-01-563-
8328, mounts on 24-bolt
tandem pattern or 20-bolt
wheel assemblies rated
with a load capacity of
4,540 pounds. The L/R E
tire and wheel assembly,
can handle cold tire
pressure of up to 65 psi.
The previous HMMWV
tire and wheel assembly,
load range D (L/R D),
mounts on 12-bolt or 24-
bolt evenly spaced wheel
assemblies and has a load
capacity of 3,850 pounds.
It can handle cold tire
pressure of up to 50 psi.
Before
adjusting tire pressure, make sure you verify the tire and wheel rating.
Wheel ratings are stamped on the outer rim. Don’t use more pressure than the tire
should take.
A HMMWV tire and wheel assembly reference guide is available online to help
with this:
For more info, eyeball TACOM LCMC’s GPA 09-013:
Or contact TACOM’s experts on this subject:
Paulina Blevins: DSN 786-2796, (586) 753-2796,
paulina.r.blevins@us.army.mil
or
Joseph Celeste: DSN 786-5532, (586) 239-5532,
joseph.celeste
@us.army.mil
LR E MT/R Tire &
24-bolt Tandem Wheel
LR E MT/R Tire &
20-bolt Wheel
LR E Baja Tire &
24-bolt Tandem Wheel
LR E Baja Tire &
20-bolt Wheel
Shoulder tread pattern
Do not
mix with
Wrangler
MT
Load range E
Do not exceed wheel load, inflation,
or valve capacity
Max load
2060 kg
(4540 lbs)
at 450 kPa
(65 psi)
MT/R
The
Lowdown
on
These
combinations
make up tire and
wheel assembly
NSN 2530-01-
563-8620
Up-Armored
HMMWVs…
Load Range E Tires
It’s not safe to mix the
new L/R E tire and wheel
assembly with the L/R D
tire and wheel assembly.
The L/R E can handle
more tire pressure and
load capacity than the
L/R D, so
don’t mix
them
on the same vehicle,
including the spare
Mixing can lead
to wheel failure.
Also, don’t install an
L/R E rated tire on an
L/R D wheel assembly.
Don’t install an L/R D
tire
on an L/R E wheel
assembly
either.
Again, no mixing!
Your tire will tell you
what you need to know
Do not mix
load range D
and E tires
683.12-13.indd
1-2
8/24/09
3:43:45 PM
Click here for a copy of this article to save or email.
Back to Top
Back to Top