Troubleshooting
- 53 -
Area
Malfunction
Possible cause
Corrective action
Engine
Abnormal noises or
vibrations from in or around
the engine
* Looseness of engine
mounting bolts
→ Check and carry out
additional tightening.
* Others
→ Consult dealer
Excessive engine oil
* Engine oil leak
→ Check and repair.
Engine overheating
* Insufficient engine oil
→ Replenish. (See page 34)
* Blower housing and cooling
fan clogging
→ Clean. (See page 42)
Excessive fuel consumption * Fuel leak from fuel system
→ Check and repair.
(Consult dealer.)
* Clogged air cleaner
→ Clean or replace.
(See pages 40)
Excessive black smoke
(Abnormal exhaust)
* Choke not opened
completely
→ Put choke to FULL position.
* Poor compression
→ Check and repair.
(Consult dealer.)
* Clogged air cleaner
→ Clean or replace.
(See pages 40)
* Excessive oil intake
→ After checking adjust oil
volume. (See page 34)
* Poor fuel
→ Replace fuel.
White smoke or blue smoke
comes out. (Abnormal
exhaust)
* An excessive amount of
engine oil added.
→ After checking adjust oil
volume. (See page 34)
* Improper fuel
→ Replace fuel.
* Worn cylinder or piston ring → Check and repair.
(Consult dealer.)
Power
transmission
system
Unit does not move with
HST lever in forward or
reverse.
* Insufficient HST oil
→ Add. (See page 37)
* Parking brake is applied.
→ Release parking brake lock
lever.
Unit moves even when HST
lever is in neutral position.
* HST speed shift neutral
position adjustment not
correct.
→ Adjust. (Consult dealer.)
Brake system
Not effective
* Worn out brake lining
→ Replace lining.
(Consult dealer.)
* Oil penetrates within brake
drum.
→ Replace oil seal.
(Consult dealer.)
* Water penetrates inside of
drum.
→ Engine brake to dry water
inside of drum.
* Worn out tire
→ Replace tire.
Excessive play of brake
pedal.
* Incorrect adjustment
→ Adjust. (See page 45)
Steering
system
Heavy steering
* Incorrect tire air pressure
→ Adjust. (See page 45)
* Malfunction inside of steering
gear
→ Repair.
(Consult dealer.)
Cannot drive straight
* Incorrect tie-rod adjustment → Adjust.
Chassis
Abnormal vibration of the
chassis
* Incorrect tire air pressure
adjustment
→ Adjust tire air pressure.
(See page 45)
* Loose tire fixing bolt
→ Retighten.
* Breakage of wheel bearing
→ Replace.
(Consult dealer.)
* Crack of tire
→ Replace.
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