Kato IC120-2, Operation Manual, Page: 115 / 119

MAINTENANCE
IC120-2 ENG 4-37
TROUBLESHOOTING
Regarding to actions marked with *, contact the distributor or service personnel.
SYMPTOM PROBABLE CAUSE REMEDY
Machine does not
travel fast and
powerfully.

Short of hydraulic oil

Lowered pressure set for relief
valve

Defect of motor or reduction gear

Defect of pump

Over-tensed crawler

Supply oil up to specified level.

Repair or replace parts.*

Repair or replace parts.*

Repair or replace parts.*

Adjust both right and left tension
to regular value.
Speed does not
change even if
changing selectors.

Discontinuity or disconnection of
electric wires.

Defect of solenoid valve for
speed selection

Repair or replace parts.*

Repair or replace parts.*
Machine curves
during travel.

Tangled obstacle

Unequal tension of right and left

Loose stopper bolt of travel
selector lever

Remove obstacle

Adjust tension of right and left to
regular value.

Adjust and fix stopper bolts
Machine does not
travel smoothly.

Tangled stone and obstacle

Over-tensed crawler

Short of hydraulic oil

Defect of motor or reduction gear

Defect of pump

Remove obstacle.

Adjust tension of right and left to
regular value.

Supply oil to specified level.

Repair or replace parts.*

Repair or replace parts.*