PS Magazine - TB 43-PS-567
PS, The Preventative Maintenance Monthly
ISSUE 567
FEBRUARY 2000
PS 567
15
PS 567
14
FEB 00
o you’ve noticed a little chunking on
the roadwheels and support rollers on your
Bradley or MLRS. You may be asking
yourself, “Is it bad enough to replace the
wheel?” and “How do I keep it from hap-
pening next time?
Here’s what you need to answer those
questions.
Inspection
Weather cracking.
If weather cracks
extend completely across the tread sur-
face and are deeper than
1
/
4
inch, the wheel
is unserviceable.
Chunking.
For roadwheels, one miss-
ing chunk of rubber that measures three
by 4 inches or larger is enough to
make your vehicle NMC.
M2/M3-Series Bradleys, MLRS . . .
roadwheel unserviceable if they cover
more than 20 percent of the tread sur-
face.
For support rollers, it only takes a
chunk measuring one inch by two
inches to cause a deadline. Again, the
depth of the chunking doesn’t matter
and a collection of smaller chunks
that cover more than 20 percent of the
tread surface make the support roller
unserviceable.
Tread separation.
Separation of the
tread that is one inch or wider and goes
around 75 percent of the roadwheel
makes your vehicle NMC. The same
goes for support rollers, except the
separation only has to be
1
/
2
inch or
wider.
Small chunks OK if they cover
less than 20 percent of tread
Large chunks of missing
rubber make vehicle NMC
Depth of the chunking doesn’t matter.
Even smaller chunks can make the
±
±
±
THE ROAD
WHEELS ON THIS
VEHICLE ARE KIND OF
CHEWED UP
.
SHOULD THEY BE
REPLACED
?
Check for separation that extends
75 percent around roadwheel
Check support rollers for separation,too
THE
ANSWER IS
RIGHT HERE
IN THE
TM
.
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