PS Magazine - TB 43-PS-558
PS, The Preventative Maintenance Monthly
ISSUE 558
MAY 1999
PS 558
3
MAY 99
PS 558
2
MAY 99
ut yourself some slack when it comes to draining fuel filters on HMMWVs,
drivers, by getting your mechanic to cut you some plastic tubing.
Add an 8-in piece of
1
/
4
-in plastic tub-
ing, NSN 4720-00-833-0867, to the end
of the filter drain valve.
This clear tubing allows you to see when
clean fuel starts running from the filter
and
helps keep fuel from spilling all over.
Be sure to put the drained fuel into an
approved hazardous waste container.
If you drain more than a pint of dirty
fuel from the filter, stop and let your me-
chanic know. The filter element, normally changed at least every annual service,
may need changing more often.
any HMMWV owners prevent
leaking surge tank return and supply
hoses by routing the hoses underneath
the air horn assembly.
Left on top of the horn, the hoses
rub against the air horn and hood until
holes develop. That can empty the ra-
diator.
Routing underneath is OK, but here’s
how to prevent the chafing problem
caused by routing the hoses over the
air horn:
➤
Take two 6-in pieces of heater hose,
NSN 4720-00-622-4743, and split them
lengthwise.
➤
Put the pieces over the surge tank’s
return and supply hoses. Position the
HMMWV . . .
Use electrical tie straps, NSN 5975-
00-985-6630, to keep the pieces in
place.
pieces on the hoses where they rub
against the air horn.
Clear hose keeps fuel filter draining tidy
Pad hoses routed over air horn
this
hose
sure
makes it easier
to tell when clean
fuel runs from
the valve.
way
to go!
this
chafing
is killing
me!
i can’t
take much
more of this
myself!
PS 558
3
MAY 99
Back to Top Back to Top
