Service and maintenance
98 Tracks
Tracks
Checking the track tension
Check and adjust the track tension every 10 operating hours
1 Park the machine on horizontal ground.
2 Lower the dozer blade at the rear to the ground until the tracks
are slightly raised. Lower the bucket to the ground, operate the
boom until the front of the machine is raised (see Fig.).
3 Run the track several times in forward and reverse.
4 Measure the sag (A) in the middle of the main chassis between
track pad and track roller face.
5 The track is correctly tensioned when a sagging (A) of 140 to
150 mm (steel tracks) or 100 to 110 mm (rubber tracks) is
reached.
6 In order to reduce sagging of the track, press grease through
grease nipple (C) into the adjustment cylinder.
7 In order to increase sagging of the track loosen the valve unit
(B) by one revolution, so that the grease can be drained off.
Tighten the valve unit when the sag of the track is correct.
NOTE! For quality of grease please refer to the table of fuels
and lubricants on page 107.
WARNING!
Incorrect tension reduces the lifetime of the tracks. A too
low track tension increases the risk of the tracks jumping
off.
WARNING!
The grease in the track adjustment cylinder is under high
pressure. Do not remove the nipple or the valve unit to
drain off grease. Never loosen the valve by more than two
turns, as otherwise it will be ejected together with the
grease.
1012263
1012163
1012164
A
E130138
C
B
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