Troubleshooting; Engine Troubleshooting - Kubota LX2620 Operator's Manual

TROUBLESHOOTING

TROUBLESHOOTING

ENGINE TROUBLESHOOTING

If something is wrong with the engine, refer to the following table for the cause and its corrective measure.
Trouble
• No fuel flow.
• Air or water is in the fuel system.
Engine is difficult to
• In winter, oil viscosity increases, and en-
start or will not start.
gine revolution is slow.
• Battery becomes weak and the engine
does not turn over quick enough.
Insufficient engine • Insufficient or dirty fuel.
power. • The air cleaner is clogged.
Engine stops sud- • Insufficient fuel.
denly.
• Fuel quality is poor.
Black • Too much oil.
• The air cleaner is clogged.
Exhaust
fumes are
• The inside of the exhaust muffler is damp
colored.
Blue with fuel.
White • Injection nozzle trouble.
• Fuel quality is poor.
• Engine overloaded.
• Low coolant level.
Engine overheats.
• Loose or damaged fan belt.
• Dirty radiator core or grille screens.
• Coolant flow route corroded.
If you have any questions, contact your local Kubota dealer.
Trouble
Engine not overheat-
Stop the engine and get it restarted. If the engine fails to restart or the indicator stays on, immediately contact your local
ed, but engine warn-
Kubota dealer.
ing indicator on.
If you have any questions, contact your local Kubota dealer.
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Cause
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Operator's action
ENGINE TROUBLESHOOTING
Countermeasure
Check the fuel tank and the fuel filter.
Replace filter if necessary.
Make sure that all hose clamps are tightly fastened to the fuel
lines. If any part of the fuel line is damaged, repair it or replace it
with a new one.
Bleed the fuel system.
(See Bleeding fuel system on page 121.)
Use oils of different viscosities, depending on ambient tempera-
tures.
Use engine block heater (optional).
Clean battery cables and terminals.
Charge the battery.
In cold weather, always remove the battery from the engine,
charge and store it indoors. Install it on the tractor only when the
tractor is going to be used.
Check the fuel system.
Clean or replace the element.
Refuel.
Bleed the fuel system if necessary.
Change the fuel and fuel filter.
Drain excess oil if necessary.
Clean or replace the 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 radiator and hoses
for loose connections or leaks.
Adjust or replace fan belt.
Remove all trash.
Flush cooling system.
LX2620,LX2620SU