PS Magazine - TB 43-PS-705
PS, The Preventative Maintenance Monthly
ISSUE 705
AUGUST 2011
10
PS 705
AUG 11
11
PS 705
AUG 11
HMMWVs
can get you just about anywhere you want to go, but they don’t get
the best gas mileage.
Unfortunately, that gas mileage will get a whole
lot worse if you’ve got a leaky fuel tank drainplug.
And that’s in addition to the unwanted attention
you’ll get from your environmental folks!
The drainplug consists of a metal screw
surrounded by a rubber gasket. If the drainplug is
over-tightened, the sharp edge of the hole may cut
the rubber. Even if the drainplug’s properly seated,
the rubber will eventually deteriorate. Either way,
you’ve got a fuel leak.
Check
the
plug
before
operations as part of your
PMCS.
A
leak
should
be
reported
immediately.
But
even if there’s no leak, you
should search for signs of
deterioration. If the rubber has
hardened or is overly soft and
smooshy to the touch, report it.
A
new
drainplug,
NSN
5340-01-244-5765, costs about
$3. That’s a lot cheaper than
paying for a fuel spill!
S
o, you’ve just come back from the Feld. Did you take your HMMWV through any dirt,
sand or water? Of course you did!
That means it’s time to service the air cleaner dust boot. Dust boot, you ask? What’s a
dust boot?
Seems a
lot
of drivers don’t know what the dust boot is, let alone where it’s located.
They need to take a gander at Para 3-16 in TM 9-2320-280-10 (Jan 96, w/Ch 3, Jul 04) and
TM 9-2320-387-10 (Oct 97, w/Ch 6, Jun 09).
With a simple squeeze, the dust boot
allows you to remove any dirt, sand or
water that has collected at the bottom
of the air cleaner canister. If too much
of that stuff builds up, the Flter element
gets clogged and air flow to the engine
is cut off.
So where do you Fnd the dust boot?
It’s under the air cleaner in the wheel
well behind a metal cover. The cover
protects the air cleaner from road debris,
but it also hides the dust boot.
Just remove the four screws holding
the cover in place, then squeeze the dust
boot to remove gunk from the bottom
of the canister. Reinstall the plate and
you’re all done!
You’ll Fnd this procedure starting on
Page 3-20 of TM 9-2320-280-20-2 (Jan
96, w/Ch 3, Jul 04) and Page 3-22 of TM
9-2320-387-24-1 (Dec 97, w/Ch 6, Jun 09).
Put a Plug in It!
HMMWV…
Put a Plug in It!
HMMWV…
Don’t
Forget
the
Dust bOot!
Check for leaks or rubber breakdown on drainplug
Remove metal cover…
…then squeeze dust boot to
remove dirt, sand and water
Drainplug is a metal screw
surrounded by rubber
looks like
you had an
accident!
after a hard
day’s work in dirt
and sand, your air
cleaner canister is
gonna need some
cleaning!
I’m gonna be able
to
breathe
again!
ahhh!
that’s good
to hear!
my fuel tank
drainplug is
leaking!
it’s
not
my fault!
705 10-11.indd
1-2
7/5/11
5:07 PM
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