PS Magazine - TB 43-PS-615
PS, The Preventative Maintenance Monthly
ISSUE 615
FEBRUARY 2004
o
perators, you can stop damage to the excavator’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 adjustment cylinder.
Contaminated grease will score the cylinder every time.
Eventually, the excavator
gets sent to support for cylin-
der repair or replacement.
So wipe that gunk mus-
tache 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, NSN 5340-00-
904-6633.
Get enough caps 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
wash
away
mud
o
perators, before you leave your HYEX for the day, make sure you dig and wash
out all the mud it has picked up during operations.
That excavator can work in mud up to the upper deck of the undercarriage. But
the mud will harden around the vehicle’s drive wheels, mid-rollers and front and
rear idler wheels.
Once hard, that mud prevents the mid-rollers from turning properly. Flat spots
form on the rollers and cause extra wear on the vehicle’s 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.
PS 615
FEB 04
22
HYEX…
looks like
you could
use a bath!
look
who’s
talking!
Remember
to report
bum parts
or anything
that needs
adjusting.
I thought
we were
done for
the day!
not ‘til we get this
mud cleaned off the
track and undercarriage
before it hardens.
I shoulda
washed that
mud off
yesterday…
before
it
froze!
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