MTZ 1220.1/1220.3 K. Scheduled technical maintenance
K27
Operation 31. Clean the cab heating
and ventilation system filter
Note: In wet conditions, such as in the
early morning hours before servicing the
filter do not switch on the fan, because
any water particles trapped in the filter
are difficult to remove.
• Raise the cab roof (1).
•
Remove the two mounting bolts and
filter cover (2) together with the two filter-
ing elements (3).
Lightly shake the elements to re-
move free dust particles from the filter.
ATTENTION! Be careful not to damage
the filter!
• Clean the filters with compressed air
under a pressure not exceeding 2 bar.
Hold the hose nozzle not closer than
300 mm from the filter in order not to
damage the PFE.
Direct the air jet through the filter in the
direction opposite to the normal flow as
indicated by the arrows marked on the fil-
ter housing.
• Install the filter performing the opera-
tions in the reverse order.
Note: When operating the tractor in
conditions of high dust exposure, clean
the filter more frequently.
Operation 32. Clean generator
Clean the generator from dust and dirt.
Check and, if necessary, tighten the bolts
fastening the generator.
Check the tightening torque of the ter-
minal connections (2).
Operation 33. Front wheel toe-in
The front wheel toe-in must be within 0 to
8 mm. If necessary, perform adjustment
operations in accordance with the rec-
ommendations in the section “Adjust-
ments”.
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