CHAPTER 10. TROUBLESHOOTING
77
4. STEERING SYSTEM
5. HST
・ Steering wheel is very
heavy to turn.
・ Low tire pressure
・ Low transmission oil level
・ Air trapped inside hydraulic piping
・ Clogged hydraulic oil filter
・ Clogged suction filter
・ Defective hydraulic pump
・ Defective power-steering unit
・ Correct it as specified.
・ Fill up to upper limit.
・ Consult your dealer.
・ Consult your dealer.
・ Consult your dealer.
・ Consult your dealer.
・ Consult your dealer.
・ Steering wheel has
a tendency to turn in one
direction.
・ Uneven tire inflation
・ Improper toe-in
・ Excessively worn tie-rod ends
・ Inflate both front and rear
tires to specified pressure.
・ Consult your dealer.
・ Consult your dealer.
・
Excessive steering wheel play
・ Excessively worn tie-rod ends
・
Excessively worn steering wheel column shaft
・ Defective power-steering unit
・ Consult your dealer.
・ Consult your dealer.
・ Consult your dealer.
・ Front mower does not
start travelling.
・ Parking brake is applied.
・ Too low engine speed
・ Low transmission oil level
・ Air trapped inside hydraulic piping
・ Improperly adjusted HST pedals
・ Clogged hydraulic oil filter
・ Clogged suction filter
・ Defective HST unit
・ Release it.
・ Accelerate engine.
・ Fill to upper limit.
・ Consult your dealer.
・ Consult your dealer.
・ Consult your dealer.
・ Consult your dealer.
・ Consult your dealer.
・ Front mower creeps
without HST pedals being
operated
・ Stuck neutral arm
・ Incorrect neutral point of HST
・ Improperly positioned neutral arm
・ Defective HST unit
・ Lubricate.
・ Consult your dealer.
・ Consult your dealer.
・ Consult your dealer.
Troubles Presumable causes Remedies
・ Lift does not rise. ・ Clogged hydraulic oil filter
・ Clogged suction filter
・ Defective hydraulic pump
・ Defective control valve
・ Defective hydraulic cylinder
・ Consult your dealer.
・ Consult your dealer.
・ Consult your dealer.
・ Consult your dealer.
・ Consult your dealer.
・ Lift does not lower. ・ Lift lock is engaged
・ Defective control valve
・ Seized lift shaft
・ Release it.
・ Consult your dealer.
・ Consult your dealer.
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