Kubota WG972-G-E3 Operator's Manual page 42

30 TROUBLESHOOTING
B When engine overheats
Cause
Engine oil insufficient
Fan belt broken or elongated
Coolant insufficient
Excessive concentration of antifreeze
Radiator net or radiator fin clogged
with dust
Inside of radiator or coolant flow route
corroded
Defective fan or radiator or radiator
cap
Defective thermostat
Defective temperature sensor
Overload running
Head gasket defective or water
leakage
A If the cause of trouble can not be found, consult your KUBOTA dealer.
Countermeasures
* Check oil level. Replenish oil as required.
* Change belt or adjust belt tension.
* Replenish coolant.
* Add water only or change to coolant with the specified
mixing ratio.
* Clean net or fin carefully.
* Clean or replace radiator and parts.
* Replace defective parts.
* Check thermostat and replace if necessary.
* Check temperature with thermometer and replace if
necessary.
* Reduce load.
* Replace parts.