Track Tension; Track Tension Adjustment Procedures; Checking For Proper Track Adjustment - Terex PT-50 Service Manual

Rubber Track Loader
13. Maintenance
times, but it should be changed at least once a
year.
Safety
Element
Figure 16-7
3. Remove the safety element. The safety element
is not serviceable or washable. It should be re-
placed with every three cleanings of the primary
element.

Track Tension

Proper track tension is very important for optimum
performance and long track life. Tracks that are run
too loose can cause misfeeding and ratcheting pos-
sibly causing damage to the track. During the first 50
hours of operation, the tracks will "break in" and will
most likely require adjustment.

Track Tension Adjustment Procedures

Figure 16-8
1. Locate the jam nut on the track tensioner and
clean the threads thoroughly before proceeding.
2. Loosen the jam nut. You can use the wrench
supplied with the machine, but a standard
wrench is preferred for shop use.
Jam
Nut
Track
Tensioner
13-4
Figure 16-9
3. After loosening the jam nut, turn the track ten-
sioner until the track tension is within specifica-
tions.
4. Once proper tension is achieved, retighten the
jam nut

Checking for Proper Track Adjustment

1. Drive the machine forward five feet to remove
any slack from the lower and rearward portions
of the track.
Figure 16-10
2. Lay a straightedge along the top of the track be-
tween the sprocket and the front idler wheel.
3. Using a rope or wire, put 50 pounds (23 kg) of
down force on the track at the midpoint of the
straightedge.