Track Tension - Terex ASV SR70 Service & Repair Manual

Rubber Track Loader
4. Maintenance
Straight-Edge
4-7
4-8
B
4-9
Track Tension (SR-70/80)
Proper track tension must be maintained for optimal
performance and track/undercarriage life. Running a
track that is too loose may cause the track to misfeed
possibly causing damage to the track and or undercar-
riage components. Running a track that is too tight
may cause track stretch, premature bearing failure, or
other preventable damage to the machine. As a rule, a
track should only be tightened to the point where there
is no visible sag. Never tighten your tracks beyond this
point.
Note: During the first 50 hours of operation the tracks
will "break-in" and will most likely require adjustment.
To check track tension: (fig. 4-7, 4-8)
1. Drive the machine forward 5 feet to remove belt
2. Lay a straight edge along the top of the track
3. Apply 90 lbs. of down force to the the track by
4. Measure from the bottom of the straight edge to
To adjust track tension: (fig. 4-9)
1. Loosen the lock nut (A) on the turnbuckle (B) and
2. Then tighten the turnbuckle lock nut to complete
A
3. Repeat the adjustment procedure on the other side
4-4
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slack from the lower and rearward portions of the
track.
bridging the drive sprocket and front idler wheel.
either placing weight on top or hanging it using
rope or wire midway between the drive sprocket
and front idler.
the lug surface (top) of the track. The deflection
should measure between 3/4" and 1".
adjust by turning the turn buckle itself until proper
tension has been achieved.
the procedure.
of the machine if necessary.