PS Magazine - TB 43-PS-571
PS, The Preventative Maintenance Monthly
ISSUE 571
JUNE 2000
echanics, the SEE’s fuel return
line is an open target for bumps and
rubs when you remove and replace the
engine cover (doghouse) during checks
and services.
Over time, enough bumps and rubs
wear a hole in the line. You’ll know
something’s up when the engine runs
rough, won’t run at all, or you smell
fuel inside the cab.
You can head off those problems
by lifting the cover clear of the fuel
return line when you need to get at the
engine.
Small Emplacement Excavator . . .
Deployable Universal Combat Earthmover . . .
Use O-rings only once
Looking for Leaks
And, while you’re looking for leaks
during PMCS, touch the return line
where its multiple connector mounts
into the engine block. If it feels wet,
the metal O-rings on each side of the
connector are probably shot.
Replace them with NSN 5330-00-
140-7701. They’re Item 2 in Fig 40
of TM 5-2420-224-
24P. For a tight
seal, use the O-
rings only once.
Lift cover clear of fuel line
your day's
work
isn't
finished
until
i'm
washed
off
!
do
you
smell
something?
maybe
it's that
skunk
back
there!
that's
no
skunk you
smell! it's my
leaky fuel
return line
!
perators, before you leave your DEUCE for the day, make sure you dig out
and wash off all the mud it has picked up during operations.
That earthmover can work in mud up to its catwalk platform. But the mud will
harden around the vehicle’s drive wheels, scraper bars, mid-rollers, front and
rear idler wheels, and belt guides.
Once hard, that mud prevents
the mid-rollers from turning
properly. Flat spots form on the
rollers and cause extra wear on
the rubber track.
So get rid of the
mud, and while you’re at it, look
for loose bolts, leaking seals, oil on the mid-rollers, and uneven track wear.
Report bum parts or anything that needs adjusting.
You also need to clean the mud away to get at the suspension’s grease fittings.
There are more than two dozen fittings on each side of the earthmover that
need lube!
Clean mud from mid-rollers
PS 571
23
JUN 00
PS 571
22
JUN 00
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