PS Magazine - TB 43-PS-596

PS, The Preventative Maintenance Monthly

ISSUE 596

JULY 2002
PS Magazine - TB 43-PS-596 - Page 3 of 32
PS 596
JULY 02
2
HMMWV…
From the desk
of the
Editor
Dear Editor,
Bleeding the fuel filter on a HMMWV is a messy, time-consuming
job. I’ve come up with a simple method that’s clean and quick. It
uses the AOAP vampire pump, plastic tubing and sample bottle and
a 2-inch section of 1/4-in rubber hose.
Here’s how to remove air from the system and not put any fuel
on the ground:
• Once the new filter element is
installed, do not fill the canister
with fuel. Instead, install the filter
head and all hoses to the filter
except the fuel outlet hose to
the engine.
• Put together the vampire pump,
NSN 4930-01-119-4030; tubing,
the piece of 1/4-in rubber hose.
Attach the assembly to the filter
outlet line by pushing the rubber
hose over the outlet.
• Use the vampire pump to pull
fuel from the vehicle tank into the
filter. Once the filter is full, fuel
will enter the sample bottle.
Stop pumping when fuel enters
the bottle.
• Remove the piece of rubber hose
from the outlet line, replace the out-
let line to the engine and tighten
the clamp.
• Pour the fuel in the sample bottle
back into the tank so that there’s no
hazardous material to dispose of
-
and no mess on the ground!
This method saves grinding on the
starter to pump the air out of the
system that is required in Para 3-32
of TM 9-2320-280-20-2. It also
can be done by one mechanic!
SGT Jerry Osterholt
444th QM Co
Sioux City, IA
It’s clean, it’s
quick and it
uses common
items.
What else
could you want
in a great idea!
Thanks,
Sergeant.
what a
messy, time-
consuming
job this is!
Sgt Jerry
Osterholt’s figured
out a way to bleed
those fuel filters
quick and clean. He
wrote us a letter…
596. 02-03 (C)
5/23/02
3:55 PM
Page 1
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