31
TROUBLESHOOTING
EN
GLISH
B
When engine must be stopped immediately
B
When engine overheats
Cause
Countermeasures
Engine revolution suddenly
decreases or increases.
* Check the adjustments and the fuel system.
Unusual sound is heard.
* Check all moving parts carefully.
Oil lamp lights up during operation.
*
*
*
*
*
Check the lubricating system.
Check to see if the engine bearing clearances are within
factory specs.
Check the function of the relieve valve in the lubricating
system.
Check pressure switch.
Check filter base gasket.
Engine warning lamp lights up.
* Consult your KUBOTA Dealer.
Cause
Countermeasures
Engine oil insufficient
* Check oil level. Replenish oil as required.
Fan belt broken or elongated
* Change belt or adjust belt tension.
Coolant insufficient
* Replenish coolant.
Excessive concentration of antifreeze
* Add water only or change to coolant with the specified
mixing ratio.
Radiator net or radiator fin clogged
with dust
* Clean net or fin carefully.
Inside of radiator or coolant flow route
corroded
* Clean or replace radiator and parts.
Fan or radiator or radiator cap
defective
* Replace defective parts.
Thermostat defective
* Check thermostat and replace if necessary.
Temperature gauge or sensor
defective
* Check temperature with thermometer and replace if
necessary.
Overload running
* Reduce load.
Head gasket defective or water
leakage
* Replace parts.
1J778-8915_E.book 31 ページ ２０１６年６月２０日 月曜日 午後５時７分
