TROUBLESHOOTING 57
TROUBLESHOOTING
ENGINE TROUBLESHOOTING
If something is wrong with the engine, refer to the table b~low for the cause and its corrective measure
Trouble
Cause
Countermeasure
• No fuel flow.
• Check the fuel tank and the fuel filter.
Replace filter if necessary.
• Check to see if the fuel line coupler bolt
and nut are tight.
• Air or watet is in the fuel system.
• Bleed the fuel system (See "Bleeding
Fuel system" in as required maintenance)
• Remove water from the system and
Engine is difficult to start or
replace the fuel filter.
• Use oils of different viscosities,
won't start.
• In winter, oifviscosity increases,
and engine ~!volution is slow:
depending on ambient temperatures.
• Use engine block heater. (Option)
• Clean battery cables and terminals.
• Battery becomes weak and the
• Charge the battery.
• In cold weather, always remove the
engine does not tum over quick
battery from the engine, charge and
enough.
store it indoors. Install it on the tractor
only when the tractor is going to be
used.
Insufficient engine power.
• Insufficient or dirty fuel.
• Check the fuel system.
• The air cleaner is clogged.
• Clean or replace the element.
Engine stops suddenly.
• Insufficient fuel.
• Refuel.
• Bleed the fuel system if necessary.
• Fuel quality is poor.
• Change the fuel and fuel filter.
Black
• Too much oil.
• Check the proper amount of oil.
Exhaust fumes are
• The air cleaner is clogged.
• Clean or replace the element.
colored.
• The inside of exhaust muffler is
• Heat the muffler by applying load to the
Blue
dumped with fuel. engine.
white
• Injection nozzle trouble.
• Check the injection nozzle.
• Poor quality fuel.
• Change the fuel and fuel filter.
• Engine overloaded.
• Shift to lower gear or reduce load.
• Fill cooling system to the correct level;
• Low coolant level.
check radiator and hoses for loose
connections or leaks.
Engine overheats.
• Loose or defective fan belt.
• Adjust or replace fan belt.
• Dirty radiator core or grille screens.
• Remove all trash.
• Coolant flow route corroded.
• Flush cooling system.
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