PS Magazine - TB 43-PS-574

PS, The Preventative Maintenance Monthly

ISSUE 574

SEPTEMBER 2000
PS Magazine - TB 43-PS-574 - Page 13 of 34
PS 574
23
SEP 00
PS 574
22
SEP 00
SEE . . .
O
perators, read and heed the
warning on Page 51 of TM 5-
2430-200-10 before using the
DEUCE’s winch.
Do not
move the winch’s clutch
lever to the DISENGAGED po-
sition when there’s a load on the
cable. That releases the load on
the cable and the earthmover will
jump forward. Someone could get
hurt—or killed!
For safety’s sake, keep your
hand away from the lever when
there’s a load on the cable.
Deployable Universal Combat Earthmover . . .
Winch Warning
D7G Tractors . . .
Check oil cooler for bent fins
yuk!
clean
up
your act!
sorry!
i wouldn't want
to
contaminate
the grease!
bent fins
really
burn
my behind!
Up to disengage
Down to engage
Never
disengage
winch
clutch with
a load on
the cable
ome well-meaning operators use
high-pressure water on the SEE’s hy-
draulic oil cooler.
They’re trying to get dirt and caked
mud off the cooler’s fins to let cooling
air in. But, what they do is bend fins
and that keeps air out.
Without cooling air, the oil overheats,
blowing seals and burning up O-rings
on the cylinder rods. Then hot oil can
make the SEE’s attachments too hot to
touch.
Lay off the high-pressure water. In-
stead, use low-pressure air or water
from a garden hose and a brush to clean
off the fins. And when you see bent
fins, straighten them with the fin-
straightening tool, NSN 5120-00-157-
2180, in the Common shop sets.
perators, you can stop damage to the D7G’s track adjuster cylinders by
keeping sand and dirt out of ’em.
Dirt and sand stick to grease. With a dirty grease gun extension and a dirty
grease fitting, an abrasive sandpaper-like combo is pumped into the
cylinder. Contaminated grease will score the cylinder every time.
Eventually, your tractor gets sent to support for cylinder
repair or replacement.
So wipe any gunk off the cylinder’s grease fitting before
you start the lube job. Then
wipe off the dirty end of
the grease gun.
You can help keep the
grease gun’s extension
tube clean and ready for
use with a protective cap,
At 15 cents each, order
a bunch of caps. Get enough for all the grease guns in your No. 1 and No. 2
Common shop sets.
Clean gun
tip and
grease
fitting
before
lubing
Use protective
caps on
grease guns
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