PS Magazine - TB 43-PS-567
PS, The Preventative Maintenance Monthly
ISSUE 567
FEBRUARY 2000
PS 567
7
FEB 00
PS 567
6
FEB 00
hat you’re packing under the
hard shell door of your HMMWV ar-
mament carrier will be exposed to the
elements if the door seal won’t seal.
Do the paper test to see how the seal
works against grit, dust, dirt and mois-
ture. Slip a piece of paper—a dollar
bill works OK—between the door seal
and the door opening. Close the door
and try to pull the paper out.
The seal and the door should fit tight
enough to keep the paper from sliding
out easily. If it comes out easily, either
2
1
/
2
-Ton and 5-Ton Trucks . . .
Cab Floor Housekeeping
A
few specks of dirt may seem harmless,
but they can lead to brake trouble if they
get in the brake master cylinder under the
floorboard of your M44A2- series or M809-
series truck.
So, always do a little housekeeping be-
fore you check the fluid level in the master
cylinder.
Before you open the cylinder’s access door, use a rag to clean the door and
floor around it.
That way, no dirt gets into the master cylinder while it’s open. And always
cover the opened cylinder if you go to get some brake fluid.
Clean area BEFORE opening door
Close door and try to remove paper
Clean off seal
Close door and let seal dry
Press seal into place
5.
Repeat the paper test. If the seal
fails the test again, replace it with NSN
4.
Close the cargo door and let the
compound dry.
the door’s out of alignment or you’ve
got seal problems. Report it.
Mechanics, if the seal’s loose—or
just really dirty—here’s what you need
to do:
1.
Remove the seal. Use clean cotton
rags and Type III P-D-680 dry clean-
ing solvent, NSN 6850-01-331-3349,
to wipe off all the grease, grime and
grit around the edge of the door. Use
soap and water to clean the rubber seal.
Let the seal dry.
3.
Press the seal back in place.
2.
Following package instructions, ap-
ply sealing compound, NSN 8030-01-
347-0964, in the seal channel along
the entire length of the seal.
hey, pal! how
about a little
pm
to my
door seal
!
i'm
drowning!
!?
HMMWV Armament Carriers . . .
PS 567
6
FEB 00
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