Jensen 561301678, Operating Instructions Manual

Page: 42 / 110

Rubber track maintenance
Checking track tension
Stop your machine on flat and solid surface. Lift it in safe conditions and put stable supports
under the undercarriage frame to properly support it. Measure distance A at the central
roller of the undercarriage from the bottom of the roller to the rigid inside surface of the
rubber track. Track tension is normal if dimension A is between 10 and 15 mm.
Adjust tension as described in the following paragraph if track tension does not comply with
these dimensions (loose or too tight).
Track loosening / tightening procedures
The grease contained in the hydraulic track is pressurized. Never loosen grease valve 1 for
more than one turn. If the valve is loosened too much you risk expelling grease under
pressure and possible serious injury to the machine operator. Also never loosen grease
nipple 2. Remove gravel or mud when they are jammed between the sprocket and the track
link before loosening the track.
1. Remove the screws and take off cover 3 to access the adjustment system.
2. To loosen the track turn valve 1 counter-clockwise no more than 1 turn. One turn of
valve 1 is sufficient for loosening the track.
3. If grease does not start to drain out then slowly rotate the track.
4. When you have obtained correct track tension then turn valve 1 clockwise and tighten
it. Clean all traces of extruded grease.
5. To stretch the track connect a grease gun to grease nipple 2 and add grease until
track tension falls within specified values.