PS Magazine - TB 43-PS-617
PS, The Preventative Maintenance Monthly
ISSUE 617
APRIL 2004
5.
Measure track sag at the middle track roller. Lay a straight edge from the bottom
of the track frame rail to the top surface of the track shoe. On a Type I or II, the track
should measure between 11 13/16 and 13 3/16 inches on the straight edge. On a
Type III, it should measure between 13 3/8 and 15 inches.
If track sag is beyond these measurements, tighten the track by pumping grease
into the track’s adjustment cylinder. You’ll find the cylinder’s grease fitting inside
the access hole in the excavator’s track frame.
the
pm
dead zone
PS 617
Other Track Tidbits
Once your hydraulic excavator is
back on the job, follow this check-
list for a healthy undercarriage:
•
5
Slow down, especially in reverse.
•
5
Clean mud and debris from the
undercarriage.
•
5
Never spin the track.
•
5
Check for loose or missing hard-
ware. Make sure all hardware is
torqued.
For the low-
down on track
measurement
and adjustment
on all three
types, take a
look at Pages
11-5 and 11-6
of TM 5-3805-
280-10.
14
15
13 3/16
11 13/16
12
13
14
15
13 3/16
11 13/16
Mark a
straight edge
for a quick
check
this
looks
good!
two
survivors!
let’s get
‘em outta
here -
pronto!!
But if you
need an
adjustment,
clean off
grease
fitting
a
pril, 1999
the
pm
dead zone
617. 26-27 (C)
3/1/04
10:51 AM
Page 1
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