• When horizontal scratch (1) crosses vertical scratch (2)
•
When there are tears (3) in part of the belt
In case (4) where there are horizontal scratches only, there is
no need to replace the belt.
METHOD FOR REPLACING ALTERNATOR AND AIR CONDITIONER COMPRES-
SOR DRIVE BELT
1.
Loosen locknut (2) of push bolt (1), then screw in push bolt
fully and loosening tension pulley.
2.
Replace the belt.
3.
Loosen push bolt (1) until approximately65 mm of the
thread can be seen, then tighten locknut (2).
METHOD FOR REPLACING AIR CONDITIONER FRESH/RECIRC FILTERS
Since the filtering ability of the filters decreases as they are aged, replace them every 500 operating hours or
every year.
METHOD FOR REPLACING RECIRCULATION AIR FILTER
1.
Remove knob (1) at the rear left in the cab, and remove
bracket (2) from portion (a).
2.
Remove the recirculation air filter from bracket (2).
3.
Replace the recirculation air filter with a new one, taking
care of its installed direction.
4.
Install bracket (2), while matching it to portion (a), and in-
stall the knob.
METHOD FOR REPLACING FRESH AIR FIL
TER
1.
Loosen knobs (1) at the rear left of the machine, and re-
move upper cover (2).
MAINTENANCE PROCEDURE MAINTENANCE
4-56
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