PS Magazine - TB 43-PS-690
PS, The Preventative Maintenance Monthly
ISSUE 690
MAY 2010
18
PS 690
MAY 10
19
PS 690
MAY 10
•
Don’t drive too close to the vehicle
in front of you.
Maintain a “stand
off” distance of at least “one vehicle”
for every 10 mph that you drive.
•
Gunners and vehicle commanders,
warn your driver of any upcoming or
possible trafFc hazards.
•
Drive defensively and expect the
unexpected.
•
Drive at speeds appropriate to
conditions and terrain.
•
Don’t drive aggressively or rely on
other vehicles to yield.
•
Don’t drive while fatigued.
Vehicle
commanders must make sure drivers
are alert.
•
Know your vehicle’s blind spots.
Keep
the windows and mirrors clean.
Dear Half-Mast,
We are experiencing
oil leaks with the rear
wheel hub assembly
on our unit’s MRAP
MaxxPro Plus vehicles.
What is causing the
leak? Are other units
having this same
problem?
SFC M.S.F.
Dear Sergeant M.S.F.,
Yep.
We’ve
received
several
inquiries about oil leaks on the rear
wheel hub assembly of the MRAP
MaxxPro Plus vehicles.
The leak is usually caused by
a damaged wheel seal. The seal
gets ruined when a well-meaning
mechanic tries to stop the leak
by cranking more torque on the
axle hub nut. This does
not
±x the
leak, but instead damages the seal,
causing the leak to get worse. Then
the wheel seal, NSN 5330-01-566-
6178, has to be replaced.
Mechanics, torque the axle hub nut to 200 lb-ft. WP 4-8.1
of TM 9-2355-318-23-3 shows how to remove and replace the
wheel seal.
MRAP Vehicles…
WHILE IN TRAFFIC…
MRAP MaxxPro Plus…
Rear
Wheel
Seal
Deal
Keep these points in mind
when driving your MRAP
in traffic because…
…Traffic accidents are
bound to happen and the
MRAP is
no exception.
these are
pointers
that
others
had to learn
the
hard
way.
They’ll help
you
reduce
unexpected
mishaps and
“fender
benders.”
Oil leaks on
rear wheel
hub assembly
mean…
…there’s too much torque that…
…damages axle housings inner hub seal
hey! why’s there
all this
oil
back
here!?
690.18-19.indd
1-2
4/6/10
5:11:56 PM
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