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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, Is battery liquid at normal level? Add the battery liquid to the normal level. Charge Check the battery terminals for Clean and fasten the terminals. Apply grease 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 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 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 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.
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