151
TROUBLESHOOTING
Other Symptoms
Slewing is not possible
or not smooth
¡Insufficient grease on slew
bearing
¡Supply grease.
Refer to page 116.
Symptom Main cause Procedure
Hydraulic oil
temperature is too high
¡Insufficient hydraulic oil
¡Replenish to the prescribed
level.
Refer to page 109.
Starter motor turns but
engine does not start
¡Insufficient fuel
¡Air in fuel system
¡Water in fuel system
¡Supply fuel.
Refer to page 109.
¡Bleed the air.
Refer to page 145.
¡Drain the water.
Refer to page 133.
Crawlers slip off ¡Crawlers are too loose
Tensioning cylinder valve
are too loose
¡Increase the tension.
Refer to page 138.
Engine exhaust is white
or bluish
¡Excessive engine oil
¡Poor fuel
¡Adjust to the prescribed
level.
Refer to page 108.
¡Replace the fuel.
Engine exhaust is
occasionally black
¡Air cleaner is clogged ¡Clean the air cleaner.
Refer to page 120.
Irregular noise is
produced from the
engine (combustion or
mechanical noise)
¡Low quality fuel is being
used
¡Engine is overheating
¡Damage in muffler
¡Replace the fuel.
¡If the Engine Overheats
Refer to page 143.
¡Replace the muffler.
(Request at a sales or
service outlet.)
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