OM 25-3503 us – Edition 4.1 * 2503_3503b530.fm 5-19
Maintenance
5.10 Tracks
Track wear can vary according to work and ground conditions.
☞ We recommend checking track wear and tension once a day.
Checking track tension
Crushing hazard during work under the machine!
Can cause serious injury or death.
• Do not allow anyone to stay in the danger zone!
• Support the machine so as to allow the tracks to sag freely.
•Park the machine on firm, level and horizontal ground.
•Stop and park the machine. Stop the engine.
•Raise the machine evenly and horizontally by means of the boom and stabi-
lizer blade.
Rubber track
•Position the machine so that mark B of the rubber track is in the middle
between the drive pinion C and the track tension roller D.
•Stop the engine.
•Operate the control lever repeatedly to release the pressure in the hydraulic
system.
•Raise the control lever base.
•Remove the starting key and carry it with you.
•Adjust the correct track tension if the play between the track roller and the
track is not 20 – 25 mm (0.8 - 1 in).
Fig. 282: Raising the excavator
Fig. 283: Rubber track mark
B
B
D
C
Fig. 284: Measuring distance
20 – 25 mm
(0.8 – 1 in)
Maintenance
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