6-19
TROUBLESHOOTING
Symptoms Major causes Remedies
Slewing is not possible or not
smooth
•Insufcient
greaseonslew
bearing
•Greasethebearing.
Refer to page 5-30.
Hydraulic
oiltemperatureis
too high
•Hydraulicoilleveltoolow •Adduptothespecied
level.
Refer to page 5-20.
Starter motor turns but
engine does not start
•Insufcient
fuel •Addfuel.
Refer to page 5-19.
•Air
infuelsystem •Bleedair.
Refer to page 6-8.
•Water
infuelsystem •Drainwater.
Refer to page 5-31.
Crawlers come off •Crawlers
tooloose •Checkandadjust(askyour
sales or service dealer).
Refer to page 5-28.
•Tensioning
cylindervalveis
loose.
•Increasethetension.
Refer to page 5-29.
Engine exhaust is white or
bluish
•Excessive
engineoil •Adjusttothespeciedlevel.
Refer to page 5-17.
•Poor
fuel •Replacethefuel.
Engine exhaust is
occasionally black
•Air
cleanerisclogged •Cleantheaircleaner.
Refer to page 5-38.
Irregular noise is produced
from the engine
(combustion or mechanical
noise)
•Low
qualityfuelisbeing
used
•Replacethefuel.
•Engine
isoverheating •Referto“Iftheengine
overheats” on page 6-3.
•Damage
insidethemufer •Replacethemufer.
For replacement, ask your
sales or service dealer.
OTHER SYMPTOMS