EF494T OM
72
TROUBLESHOOTING
In case of abnormality of machine, stop the engine and locate a problem by referring to the following table.
1. Engine parts
PROBLEM POSSIBLE CAUSE RESPONSE
Won't start by main switch Shift lever in N?
Set each shift levers in N. Under this condition,
turn the main switch to START.
Is battery liquid at normal level?
Battery nor discharged?
Add the battery liquid to the normal level. Charge
the battery.
Check the battery terminals for
looseness or rust.
Clean and fasten the terminals. Apply grease
coating to avoid rusting.
Main fuse blown Replace the fuse with new one.
Switch trouble Have it repaired by the service representative.
Starter trouble Have it repaired by the service representative.
Self-starter running but the
engine fails to start
No fuel Add the fuel and remove air.
Air in the fuel Remove air from the fuel.
Fuel cock in the C position Put the fuel cock in the 0 position.
Engine runs irregularly
Air in the fuel supply system Bleed air.
Water mixed in the fuel Remove water and replace with light oil
Jet nozzle clogged Replace or repair the nozzle.
Clogged fuel filter
Clean or replace the filter element.
Engine overheating
Lack of cooling water Add cooling water.
Loosened or damaged fan belt
Adjust the tension of belt or replace the belt with
new one.
Clogged radiator fins Clean the radiator fins.
Running out of engine oil Add engine oil.
Overloaded Reduce the load.
Low engine power
Clogged air cleaner Check the air cleaner.
Burnt nozzle Have it repaired by the service representative.
Low compression Have it repaired by the service representative.
Valve clearance incorrectly
adjusted
Have it repaired by the service representative.
Incorrect timing of fuel jet Have it repaired by the service representative.
Oil pressure lamp lighting
Lack of engine oil Add engine oil to the normal level.
Low engine oil viscosity Use the oil with adequate viscosity.
Damaged pressure switch Replace the switch.
Damaged oil pump Have it repaired by the service representative.
Charge lamp lighting
Damaged alternator Have it repaired by the service representative.
Loosened or damaged fan belt Adjust the tension of the belt or replace the belt.
To Next Page
Loading...
