147
TROUBLESHOOTING
Other Symptoms
Slewing is not possible
or not smooth
¡Insufficient grease on slew
bearing
¡Add grease.
Refer to page 114.
Symptom Main cause Procedure
Hydraulic oil tempera-
ture is too high
¡Insufficient hydraulic oil ¡Replenish to the prescribed
level.
Refer to page 107.
Starter motor turns but
engine does not start
¡Insufficient fuel
¡Air in fuel system
¡Water in fuel system
¡Add fuel.
Refer to page 107.
¡Bleed the air.
Refer to page 143.
¡Drain the water.
Refer to page 116.
Crawlers slip off ¡Crawlers are too loose ¡Adjust the tension.
Refer to page 113.
Engine exhaust is white
or bluish
¡Excessive engine oil
¡Insufficient fuel
¡Adjust to the prescribed
level.
Refer to page 106.
¡Replace the fuel.
Engine exhaust is
occasionally black
¡Air cleaner is clogged ¡Clean the air cleaner.
Refer to page 119.
Irregular noise is pro-
duced from the engine
(combustion or me-
chanical noise)
¡Low quality fuel is being used
¡Engine is overheating
¡Damage in muffler
¡Replace the fuel.
¡If the Engine Overheats
Refer to page 141.
¡ Replace the muffler.
(Request at a sales or
service outlet.)
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