PS Magazine - TB 43-PS-717
PS, The Preventative Maintenance Monthly
ISSUE 717
AUGUST 2012
9
PS 717
AUG 12
Cleaning, Part 2
Sometimes you can’t get the flter element clean just by using compressed air.
In cases oF stubborn dirt, soak the element in a solution oF general purpose detergent,
NSN 7930-00-985-6911, and warm water. Gently move the element in the solution to
help loosen and remove dirt.
AFter cleaning For 15 minutes, remove the element From the solution and rinse it
thoroughly with clean water From a low-pressure hose.
Let the element completely air dry beFore reusing it. You can also use low-pressure
air to help dry the element Faster.
Make sure you write down in the vehicle log book each time the flter is cleaned
using the detergent solution. Once it has been cleaned with detergent six times, let
your mechanic know. It may need to be replaced.
Air Filter Housing
Once you’ve fnished cleaning the element and plate, don’t Forget about the housing.
IF the element was badly clogged, there may be some oF that dirt and sand in the
bottom oF the housing that needs to be cleaned out. Some loose sand and dirt may Fall
out oF the element as you’re removing it.
Either way, iF you don’t get rid oF it, that sand and dirt will immediately end up in
the engine as soon as the vehicle is started.
IF one is available, a small vacuum works best to clean out the housing.
Watch Out for Water
Ever notice water at the bottom oF the air
flter housing once the element is removed?
That means you’re probably not using the
environmental cover when the vehicle is
parked.
Without the cover, rain and wash water
enter the air inlet and pool at the bottom
oF the housing. The water combines with
dirt and sand and eventually dries to a hard,
concrete-like consistency.
The only way to get it out is to chip it
loose. That can cause a lot oF damage to the
housing. So use the environmental cover
whenever your Stryker isn’t in use.
M
echanics, when replacing the M48A1 gas particulate flter unit, NSN 4240-01-
363-1311, on an M1-series tank, be
very
careFul as you open the flter’s container.
The container is opened by pulling on a key tab that removes a metal strip around
the container. Both the metal strip and the edges leFt on the container are very sharp
and quite capable oF giving you a nasty cut. So make sure you’re wearing cut-
resistant gloves when opening the container.
When opening
container,
watch out for
sharp edges on
metal strip.
..
...and
container
rims
Filter
a
Hazard
to
Hands
and
Eyes
M1-Series Tanks…
Filter
a
Hazard
to
Hands
and
EYes
Eye protection
is a
must,
too.
When that metal
strip pulls loose
from the container,
the tension can make
it
snap back,
putting
your eyes at risk!
holy cow!
what
happened
to you!?
I had a little
disagreement
with
an M48A1 filter
container!
now that you
know
what
to
do… what are
you
going
to
do?
Environmental cover will
keep water out of housing
717 08-09.indd
1-2
7/3/12
3:22 PM
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