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8.2.9 Tracks: check for wear, tensioning and replacement.
According to the periodicity described in the maintenance table, and always before each use of the
machine, it is necessary to check the state of wear and the correct tensioning of the tracks.
8.2.9.1 Track wear check.
Check the condition and wear of the tracks, replacing them when the tread is equal to or less than 10 mm.
Proceed to replace the tracks even before this event, if dangerous cuts or tears occur.
8.2.9.2 Track tension control and adjustment.
To check its tension, when the tracks are resting
on the ground, pull the track slightly upwards at
the centre line. The maximum permissible
deformation must be less than or equal to 20 mm
(2 cm). Otherwise, or if the track is particularly
noisy during translation due to excessive
deformation, it is necessary to call the Technical
Assistance Service.
The machine is in fact equipped with an automatic
track tensioning system powered by the
oleodynamic circuit of the machine during normal
operation, which does not allow interventions by
the operator.
8.2.9.3 Track replacement.
If necessary, to replace a track:
- Widen the carriageway using the
commands described above;
- Lift the machine using one of the lifting
means provided in this manual (LOADING
AND TRANSPORT chapter) in order to
obtain a track height of about 15-20 cm
from the ground;
- Thoroughly clean all parts of the tracked
undercarriage;
- Remove the protective cover (1);
- Remove the mechanical stop (2) of the
track adjuster located inside the side
member;
- Identify the track tensioner valve (3), and
loosen it a few turns so that you can see
the grease coming out;
- Compress the track tensioning cylinder by
pressing on the idler wheel (5);
- Extract the track from its seat by levering between the track and the idler wheel with a crowbar;
- Install the new track following the reverse procedure, matching the toothed wheel to its seats,
then inserting it on the idler wheel;
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