-77-
Troubleshooting
9
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
→ Add. (See page 49)
* Blower housing and cooling fin
clogging
→ Clean. (See page 53)
Excessive fuel consumption
* Fuel leak from fuel system
→ Check and repair.
(Consult dealer.)
* Clogged air cleaner
→ Clean or replace.
(See pages 52)
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 52)
* Excessive oil intake
→ After checking adjust oil
volume. (See page 49)
* 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 49)
* 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 57)
* 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 62)
Steering
system
Heavy steering
* Incorrect tire air pressure
→ Adjust. (See page 63)
* Malfunction inside of steering
gear
→ Repair.
(Consult dealer.)
Cannot drive straight
* Incorrect tie-rod adjustment
→ Adjust.
Chassis
Abnorma
l vibration of the
chassis
* Incorrect tire air pressure
adjustment
→
Adjust tir
e air pressure.
(See page 63)
* Loose tire fixing bolt
→ Retighten.
* Breakage of wheel bearing
→ Replace.
(Consult dealer.)
* Crack of tire
→ Replace.