PS Magazine - TB 43-PS-716

PS, The Preventative Maintenance Monthly

ISSUE 716

JULY 2012
PS Magazine - TB 43-PS-716 - Page 11 of 33
19
PS 716
JUL 12
O
perators, the well-being of the light Fail’s undercarriage components hinge on
good track adjustment.
If the track’s too tight, it puts a lot of stress on undercarriage and drive train com-
ponents. If it’s too loose, the track Faps, wearing out roller Fanges and sprocket teeth.
So, take a sag measurement in the middle of the track. If the track sags more than
4 inches or less than 3 inches, it’s time for an adjustment.
1.±
Make sure the
light Fail is on
level ground.
2.±
Shut down the
engine.
3.±
Remove the
access panel.
4.±
Use a grease gun to pump grease into the grease
fitting until you have the right track tension.
That’s between 3 and 4 inches from the bottom
of the hull to the Fat portion of the track shoe.
5.±
Reinstall the access panel. You’ll want to do this
same procedure for the track on the other side
of the vehicle.
If the track is too tight, follow the procedure
shown in WP 0028-5 in TM 9-2350-392-10 (Sep
11) to loosen it.
O
perators, two grease fttings on the excavator can mean the diFFerence between
productive construction operations—or serious downtime.
Without lube, a swing arm seizes, causing the suspension to break apart.
The swing arm grease ftting is a little tricky to fnd. It’s located behind the bogie
cylinder accumulator on the swing arm, Facing toward the Front oF the vehicle.
There’s one on each side oF the vehicle.
So, lube each swing arm weekly or every 50 hours oF operation. You’ll fnd this
inFo on Page 125 in TM 5-2430-200-10 (Mar 01, w/Ch 1, May 08). The complete
lube chart is on Page 104.
•±
Slow down, especially in reverse.
•±
Clean mud and debris from the undercarriage.
•±
Never spin the track.
•±
Check for loose or missing hardware. Make
sure all hardware is properly torqued.
Here’s±what±
to±do:
M160
Light ±lail…
DEUCE…
Lube Swing Shaft Arm
once your
light flail is
back on the
job, follow
this checklist
for a longer
undercarriage
life…
you’ll find the
grease fitting back
under and below
the track.
Remove track
access panel
Pump grease
into fitting to
adjust track
Visually
check
every
track plate
bolt for
looseness
until track
has made a
full circle
Keep swing (shaft) arm lubed
soldier, I wouldn’t
take this m160 out
right now.
these
tracks need
adjusting!
716 18-19.indd
1-2
5/21/12
10:19 AM
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