Maintenance service, every 250
hours
Track unit, checking tension
NOTE!
Incorrect tension reduces the lifetime of the tracks.
A too low track tension increases the risk of
detracking.
1 Park the machine on horizontal ground.
2 Lower the dozer blade in the back to the ground
until the tracks are slightly raised (see picture).
3 Lower the bucket to the ground, operate the
boom until the machine is raised (see picture).
4 Run the tracks several times in forward and
reverse.
5
For rubber tracks, measure (on both tracks) sag
(A) under the roller which is the closest to the
center of the undercarriage, between the track
pad and the track roller.
6 The rubber track is correctly tensioned when a
sag (A) of 15 to 25 mm (0.59 to 0.98 in), target:
20 mm (0.79 in) is reached.
7
For steel tracks (only for EC18E/ECR18E),
measure (on both tracks) sag (B) from the frame
of undercarriage under a roller until the surface
of steel tracks.
8 The steel track is correctly tensioned when a sag
(B) of 110 to 120 mm (4.33 to 4.72 in), target:
115 mm (4.53 in) is reached.
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