4. MAINTENANCE 5. Electrical (Continued) 6. Engine 64 Problem Cause Remedy Engine will not crank over (continued) Fuse burnt Check and replace. Defective relay Check relay continuity. If defective, replace. Ignition switch failure Check continuity, repair or replace. Engine cranks over, but will not start Auxiliary hydraulics engaged Engine will smoke, but not run unassisted by starter. Disengage auxiliary hydraulics. Defective glow plug relay Check continuity and if defective, replace. Defective glow plug Check continuity and if defective, replace. Broken connection or defective wire Disconnect the ROPS harness from the engine harness.
Open the dash panel and check continuity of the circuit not functioning properly in both engine and ROPS harness. No fuel Check fuel levels and system. Loader starts, but hydraulic controls will not release. Electric solenoids not releasing valve spools Defective solenoid or binding solenoid locks. Loosen screws and re-adjust. Check continuity of connectors, seat bar switch, seat switch, seat belt switch and wires. Problem Cause Remedy Engine does not start No fuel Replenish fuel. Air in the fuel Vent air. Water in the fuel Change fuel and repair or replace fuel system. Fuel pipe clogged Clean. Fuel filter clogged Clean or change.
Excessively high viscosity of fuel or engine oil at low temperature Use the specified fuel or engine oil. Fuel with low octane number Use the specified fuel. Fuel leak due to loose injection pipe retaining nut Tighten nut. Incorrect injection timing Adjust. Fuel cam shaft worn Replace. Injection nozzle clogged Clean. Injection pump malfunctioning Repair or replace. Seizure of crankshaft, camshaft, piston, cylinder liner or bearing Repair or replace. Compression leak from cylinder Replace head gasket, tighten cylinder head bolt, glow plug and nozzle holder. Improper valve timing Correct or replace timing gear. Piston ring and liner worn Replace. Excessive valve clearance Adjust.