Komatsu PC200-8M0 Shop Manual page 385

101 Testing and adjusting, Part 1
Testing and adjusting track tension
2. Decreasing tension
1) Loosen valve (2) to discharge grease, and
then tighten it.
k
Do not loosen the valve more than
1 turn. If it is loosened more, it
may jump out because of the high-
pressure grease in it.
2) To check that the tension is normal, run
the engine at low idle and move the
machine forward by the length of track on
ground, then stop slowly.
3) After adjusting, check the track tension
again according to the above procedure.
PC200, 200LC, 220, 220LC-8M0
SEN06127-00
33
30-101