Track shoe link pins and bushings wear with normal usage, reducing track tension while operating.

Track tension is checked by jacking up one side of the excavator.

Accordingly, Clean off the tracks before checking clearance.

Measuring the distance A between the bottom of the side frame and the top of the lowest crawler shoe while machine is jacking-up.

Recommended tension for operation over most types of terrain is 320 - 340 mm (12.60 - 13.39 in) *Except muddy, sandy, snowy ground conditions.

If it is too loose, adding grease to pressure on the tension spring pushing the track idler wheel outward.