Komatsu D155AX-8E0, Operation & Maintenance Manual

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1.
Remove nut (2) of breather assembly (1) on the top of the
fuel tank.
2.
Remove cover (3).
3.
Remove dirt sticking to breather element (4).
4.
Clean in clean diesel fuel or flushing oil.
5.
Install cover (3) and nut (2).
In order not to damage the threaded portion of nut, tighten
nut (2) by hand until it is seated, then tighten it 15 to 30° by
using a tool.
METHOD FOR CHECKING AND ADJUSTING ALTERNATOR AND AIR CONDI-
TIONER COMPRESSOR BELT TENSION
Check the belt and replace it with a new one in the following cases.
• The belt is cracked or peeled.
• The belt is worn and split lengthwise.
1.
Loosen lock nut (2) of push bolt (1).
2.
Tighten push bolt (1) fully.
3.
Loosen the tension pulley.
4.
Replace the belt.
5.
Loosen push bolt (1) until the thread portion comes out ap-
proximately 90 mm.
6.
Tighten lock nut (2).
METHOD FOR CHECKING UNDERCARRIAGE OIL
k k
WARNING
Immediately after the machine is stopped, you may be scalded by hot oil spurting out or by touching
high-temperature parts. Accordingly, wait until they have cooled down before starting the work.
MAINTENANCE MAINTENANCE PROCEDURE
4-35