PS Magazine - TB 43-PS-679
PS, The Preventative Maintenance Monthly
ISSUE 679
JUNE 2009
2
JUN 09
3
PS 679
JUN 09
If that O-ring is missing or damaged, you
won’t get a good seal and the hub can leak. If
the hub goes dry, it’ll burn up.
Replace missing or damaged O-rings with
NSN 5330-12-156-4524. If the old O-ring is
undamaged, you’ll need to wipe it off before
reinstalling the plug. If there’s a lot of dirt or
sand on the O-ring, it won’t seal properly and
you’ve got leak problems again.
1.
Start the vehicle.
2.
Make sure the transfer is in 8x4 mode.
3.
Drive the vehicle over a smooth, level
stretch of road. The Stryker
must
be moving
faster than 0.3 mph, at constant speed, and in
a straight line. If not, the system unavailable
light will flash.
4.
While driving, press the center
level button on the HMS panel
one time. The front and rear
middle LEDs will start flashing.
The flashing will continue during
the leveling process, which could
take up to four minutes. Once
the vehicle is level, the flashing
will stop and the two LEDs will
stay on.
5.
If your Stryker does not level on
the Frst attempt, try it again. If it
fails a second time, or if the system
fault or low nitrogen lights come
on, tell your mechanic.
Stryker…
Hub
leaking?
Look for
O
-Rings!
if that
happens,
level your
stryker
like this…
the extra weight of your
stryker’s slat armor
can cause a lot of little
problems, crewmen.
that means you have to stay
on top of them so they don’t
become bigger problems.
the height
management
system (hms)
is a good
example.
the extra
weight can
knock the
hms out of
kilter.
you’ll know
this is a
problem when
you see your
stryker sagging
at one or more
corners.
crewmen,
when you need
to add or
drain oil from
the hubs of
your stryker,
take a close
look for an
O-ring on
the plug.
Transfer in 8x4 mode?
System unavailable
light flashing?
Press level button once
Check for
damaged or
missing O-ring
on hub plug
why so
droopy,
pal?
it’s nothing
that a good
leveling
won’t fix!
D
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S
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Help
679.02-03.indd
1-2
5/4/09
5:25:01 PM
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