PS Magazine - TB 43-PS-592

PS, The Preventative Maintenance Monthly

ISSUE 592

MARCH 2002
PS Magazine - TB 43-PS-592 - Page 3 of 32
“A1-series HMMWVs and all
the M1097s use a Model 242
transfer, NSN 2520-01-452-
8365, that is
different from
and
not compatible
with the
Model 242 used on A2-series
trucks, NSN 2520-01-409-2512.”
PS 592
MAR 02
HMMWV…
…make sure
you know which
one belongs to
which vehicle.
because Each
series uses
a
different
transfer.
why is
that?
“Conversion kit,
converts a basic
vehicle with the Model
218 transfer to a
Model 242 transfer.”
“The kit contains a transfer,
NSN 2520-01-409-2512, two prop
shafts and all needed hardware.”
“It is designed to be used once per vehicle.
Once the kit is installed, order the -2512
transfer when a replacement is needed.”
“Basic HMMWVs originally
had a Model 218 transfer
case, NSN 2520-01-163-4999.
The Model 218 has a
bolt-on flange on the
rear propeller shaft.”
Model 218 transfer
Model 242 transfer
Only
certain
models of
HMMWVs can
still use bias
ply tires. All
other models
must use
radial tires.
Remember,
all four tires
must either be
bias
or
radial
-
no mixing
allowed!
Eventually,
all
HMMWVs will use
radial tires.
Commanders
can convert to
radials with
updated rubber
run-flat devices
any time
at
the unit’s
expense.
I’m sorry,
but I just
don’t like
the radial
tire.
well, of
course
not, you’re
biased!
M966
M996
M997
M998
M1025
M1026
M1035
M1036
M1037
M1038
M1042
M1043
M1044
M1045
M1046
M1121
Bias ply or radial tires
M1097
M1097A1
M1097A2
M1109
M1113
M1114
M1123
All
A1 and A2 models
Radial tires only
5
Before
you
order a new
transfer case
for your
HMMWV…
If you need one or
two 218s, order them
or the -0822 kits. If
you need more, order
just the kits.
The Model
218 transfer
is no longer
being bought.
It is available
in
small
quantities
from a TACOM
rebuild
program.
n
(
t
t
im
P
t
592. 04-05 (C)
2/5/02
5:10 PM
Page 1
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