PS Magazine - TB 43-PS-703

PS, The Preventative Maintenance Monthly

ISSUE 703

JUNE 2011
PS Magazine - TB 43-PS-703 - Page 5 of 32
7
PS 703
JUN 11
Underneath
Now check the bottom of the fuel cap.
Dirt and sand that collect around the Fller neck can keep the cap from screwing
on properly. That can bend the metal lip inside the fuel tank opening which, in turn,
damages the gasket on the underside of the fuel cap.
Make sure you brush or blow away any dirt and sand before opening the fuel cap.
Then, make sure the Fller neck area is completely clean before closing the fuel cap.
Topside
Some of you may forget that there’s a screen cap and
rubber vent grommet on top of the fuel cap. If it’s not
cleaned every 6 months—more often in dusty, sandy
environments—the cap gets plugged with dirt. That creates
a vacuum and causes fuel ±ow problems.
Here’s how to inspect and clean the cap and grommet:
1.
Grip the tang in the center of the fuel cap with a pair of
pliers and pull out the screen cap.
2.
Eyeball the grommet in
the fuel cap. If it’s damaged,
replace the entire fuel cap.
3.
Clean the screen cap with
dry cleaning solvent.
Inside
Before screwing the fuel cap back in place, pull out
and check the fuel strainer inside the Fller neck.
If the strainer is clogged with sediment, clean it
thoroughly with dry cleaning solvent. Then inspect the
strainer for any cuts or tears.
M113-Series
FOV…
All-Around
Fuel Cap PM
if you find
any damage,
replace the
strainer using
nsn 4
7
30-00-
7
01-3921.
keeping fuel
moving in your
m113-series
carrier takes
good pm on every
component of
the fuel system—
including the fuel
cap, nsn 5342-01-
46
7
-5645.
for more details,
see wp 01
7
6 00 in
tm 9-2350-2
77
-
20-2 (jan 01, w/ch
4, dec 06).
Remove
screen
cap…
…and clean dirty screen
with dry cleaning solvent
Brush dirt away from filler opening…
…to prevent damage to fuel cap gasket
Check strainer for
clogs or damage
I don’t
get it!
I just
did pm on
your fuel
system!
yeah, but
did you
remember
my
fuel
cap?
703.06-07.indd
1-2
5/13/11
1:39 PM
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