PS Magazine - TB 43-PS-573
PS, The Preventative Maintenance Monthly
ISSUE 573
AUGUST 2000
PS 573
17
AUG 00
rewmen, draining the primary and secondary fuel filters on your vehicle is
required after
every
operation. If you drain ’em only when you feel like it,
you’ve probably set yourself up for a real fuel flow problem that’s caused when:
Sediment build-up plugs the bot-
tom of the fuel filter.
Water build-up creates rust inside
the filter canister. Rust is just another
form of sediment that puts a stop to
fuel flow.
Cold weather freezes the water. As
the ice plug expands and contracts, it
can also crack the canister.
Your problems may not be over
even if you drain the primary and sec-
ondary fuel filters as part of your
after-operation PMCS.
Since both filters sit at a slight angle,
a draincock that sits on the high side
of the canister’s bottom will not allow
all of the water and sediment to drain.
If that’s the case, have your mechanic
loosen the canister from the filter hous-
ing and turn it so the draincock is at
the lowest point.
M113-Series FOV . . .
...and turn
canisters
until
draincocks
are at
lowest
point
Loosen
bolts on
top of filter
housings.
..
if they
don’t
drain
the
fuel filters
soon
,
i won’t be getting
any fuel
at all
!
5
5
5
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