PS Magazine - TB 43-PS-634
PS, The Preventative Maintenance Monthly
ISSUE 634
SEPTEMBER 2005
PS 634
SEP 05
3
E
asy does it when removing or tightening
the hub filler/drain plugs on your Stryker.
The hex-shaped indentation on the plug
will strip and round off easily. That makes
the plug very hard to install or remove.
Make sure you insert your wrench all
the way into the plug before turning.
That’ll reduce the chance of damage.
Keep a few extra plugs, NSN 5365-01-
157-1347, and gaskets, NSN 5330-12-
156-4524, on hand in case one is dam-
aged. They cost only a little more than $2
per set, so it’ll be more than worth it if a
plug strips while you’re in the field.
Once the plug is removed, pay special
attention to the inside tip. That end of the
plug is magnetized, so you may find tiny
metal shavings stuck there. Metal shavings
probably means wear to the planetary
gears in the hub. Tell your mechanic.
PS 634
SEP 05
2
Stryker…
W
ith the addition of slat armor, the ramp on your Stryker becomes a real heavy-
weight. That means you have to be even more careful than normal when raising and
lowering the ramp.
Flipping the ramp switch up and
down is definitely a bad idea. The ramp
will jump and jerk as it raises or low-
ers. That puts too much strain on the
hydraulic rams and blows the seals.
The same problems arise if you leave
the ramp partially raised or lowered.
Remember, there are only two positions for the ramp: all the way up or all the
way down. So raise and lower the ramp in one smooth motion to avoid damage to
the ramp mechanism.
Watch the Personnel Door
Be
very
careful when opening
the personnel door on the Stryker’s
ramp, especially if the vehicle is
parked on an uphill incline.
Slat armor makes the door a
whole lot heavier, so it will swing
open suddenly when the latch is
released. A few soldiers in Iraq
were nearly crushed between the
door and the slat armor that covers
the right fuel tank cap.
my ramp is too
heavy
to jerk it
around like that!
Don’t flip ramp switch up & down repeatedly
Personnel door can
aa
swing open suddenly and with a lot of force
It’s supposed to
look hex-shaped
When plug rounds
off, it’s hard to
remove or tighten
Look for
small
metal
shavings
on tip
of plug
this drain
plug is
rounded
off!
how am I
ever going
to get it
loose!?
Stryker…
Up
or
Down,
Keep it Smooth
634.02-03(C).qxd
7/29/05
11:19 AM
Page 1
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