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ENGINE TROUBLESHOOTING
TROUBLESHOOTING
ENGINE TROUBLESHOOTING
If something is wrong with the engine, refer to the following table for the cause of the trouble and its corrective
measure.
Trouble
Engine is difficult to start or will not start.
Insufficient engine power.
Engine stops suddenly.
Black
Exhaust fumes are colored.
Blue white
Engine overheats.
If you have any questions, consult your local KUBOTA Dealer.
BX23S, LA340, BT603
Cause
•
No fuel flow.
•
Air or water is in the fuel system.
•
In winter, oil viscosity increases,
and engine revolution is slow.
•
Battery becomes weak and the
engine does not turn over quick
enough.
•
Insufficient or dirty fuel.
•
The air cleaner is clogged.
•
Insufficient fuel.
•
Fuel quality is poor.
•
Too much oil.
•
The air cleaner is clogged.
•
The inside of exhaust muffler is
damp from fuel.
•
Injection nozzle trouble.
•
Fuel quality is poor.
•
Engine overloaded.
•
Low coolant level.
•
Loose or damaged fan belt.
•
Dirty
radiator
core
or
screens.
•
Coolant flow route corroded.
Countermeasure
•
Check the fuel tank and the fuel filter.
Replace the filter if necessary.
•
Check to see if the fuel line coupler bolt and nut are tight.
•
Bleed the fuel system.
See
1. Bleeding the fuel system on page
•
Remove water from the system and replace the fuel filter.
•
Use oils of different viscosity, depending on ambient tem-
peratures.
•
Use engine block heater (option).
•
Clean battery cables and terminals.
•
Charge the battery.
•
In cold weather, always remove the battery from the engine,
charge and store the battery indoors.
Install the battery on the tractor only when the tractor is go-
ing to be used.
•
Check the fuel system.
•
Clean or replace the air cleaner element.
•
Refuel.
•
Bleed the fuel system if necessary.
•
Change the fuel and the fuel filter.
•
Check the proper amount of oil.
•
Clean or replace the air cleaner element.
•
Heat the muffler by applying load to the engine.
•
Check the injection nozzle.
•
Change the fuel and fuel filter.
•
Shift to lower gear or reduce load.
•
Fill cooling system to the correct level.
Check the radiator and the hoses for loose connections or
leaks.
•
Adjust or replace the fan belt.
grille
•
Remove all trash.
•
Flush the cooling system.
TROUBLESHOOTING
137.
167
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