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Kubota M8560 Troubleshooting

Kubota M8560 Engine Troubleshooting

Engine hard to start or won't start: Fuel filter element is dirty. Filter maintenance required. Air in the fuel lines. Bleed the fuel lines. Defective or clogged injection nozzle. Replace injection nozzles. Fuel injection pump malfunctioning. Repair or replace injection pump.

Engine stalls after running: Fuel injection pump timing is wrong. Adjust the pump as required. Fuel filter plugging. Replace the filter element. Coolant temperature is low. Warm up engine as required.

Engine starts but immediately stalls: Fuel filter element is dirty. Change filter element. Fuel injection pump is not working correctly. Replace or repair injection pump. Air filter clogged. Clean air cleaner element.

Engine overheats: Dirty radiator core or faulty radiator cap. Clean radiator or install new cap. Insufficient coolant fluid. Fill the cooling system and check components for leaks or other faults. Fan belt is loose or defective. If necessary, replace the belt. Engine oil level is insufficient. Fill the crankcase with engine oil.

Diesel engine loses power: Dirty or faulty injection nozzles. Install a new kit of correctly balanced nozzles. Dirt in the fuel lines or hoses. Clean fuel system hoses and lines. Plugged air filter. Service air cleaner. Cylinder head gasket is worn. Replace the gasket as required.

Abnormal engine knocking or noise: Engine has not warmed up to the recommended temperature. Normalize the temperature by warming up the engine. Lack of engine oil. Fill up the oil to required level. Fuel injection pump timing is wrong. Set it up as required. Worn or scored pistons. Have pistons replaced. Misaligned or defective connecting rod. Align or replace connecting rod.

Engine stops at idle: Too low idle RPM. Adjust low idle speed. Excessive valve clearance. Adjust valve clearance. Fuel injection pump is defective. Change pump or rebuild it.

Oil pressure too low: Oil level is low. Fill up the engine oil. Oil pump is damaged. Replace as required. Plugged engine oil filter. Change or clean engine oil filter element.

Kubota M8560 Transmission Troubleshooting

Transmission makes excessive noise: Incorrect backlash or gears are worn. Adjust backlash properly or replace the gears. Worn or bent gear shift forks. Change the shift forks. Worn or stuck shaft splines. Change defective shaft. Transmission oil level is low. Fill up the transmission oil. Worn or broken bearings. Faulty bearings should be replaced. Transmission fluid is contaminated. Change the fluid.

Gears are hard to shift: Worn or rusty gear shift linkage. Lubricate or replace shift linkage. Worn or unadjusted clutch. Adjust or change the clutch. Worn or bent shift forks. Shift forks need to be changed. Gearshift mechanism malfunction. Identify and replace failed parts.

Transmission fluid pressure is insufficient: Lack of transmission fluid. Checking transmission fluid level and add if necessary. Transmission oil filter element clogging (if equipped). Clean or change transmission oil filter. Stuck relief valve. Replace the valve.

External oil leaks: Damaged seals or gaskets. Install new seal or gaskets. Too much oil in transmission. Drain the excess oil.

Kubota M8560 Hydraulic System Troubleshooting

Hydraulic system overheating: Hydraulic fluid type is incorrect. Pour the correct type of fluid. Hydraulic fluid contamination. Change hydraulic fluid. Air in hydraulic system. Bleed air from hydraulic system. Damaged main relief valve. Relief valve must be changed.

Insufficient hydraulic fluid pressure: Hydraulic oil is insufficient. Fill the system to proper hydraulic oil level. Hydraulic fluid filter element is clogged. Service or replace the hydraulic filter. Hydraulic piping is leaking. Inspect hydraulic system for leaks and repair it. Incorrect adjusted hydraulic control valve. Adjust correctly. Faulty hydraulic pump. Change or repair hydraulic fluid pump. Hydraulic cylinder malfunction. Change or repair hydraulic cylinder.

3-point hitch fails to lift or lifts slowly: Hydraulic pump is defective. Install a new hydraulic oil pump. Main relief valve is defective. Relief valve need to be replaced. Hydraulic control valve is defective. Install a new hydraulic valve or repair it. Hydraulic cylinder malfunction. Replace or repair hydraulic cylinder. Insufficient hydraulic fluid. Checking hydraulic fluid level and add if necessary. Clogged hydraulic fluid filter. Hydraulic filter maintenance required. Excessive hitch loading. Reduce loading.

Hitch not lowering or hitch lowers slowly: Hydraulic cylinder is faulty. Repair or replace hydraulic cylinder. Incorrect setting hydraulic control valve. Use the correct adjustment. Hitch rock shaft is damaged. Replace the shaft. The hitch has not been adjusted. The three-point hitch must be adjusted.

3-point hitch jerks when lower or lift: Dirty hydraulic fluid. The fluid must be changed. Damaged hydraulic pump. Replace or repair hydraulic fluid pump. Air trapped in hydraulic system. Bleed air from system. Damaged hydraulic control valve. Repair or replace hydraulic valve. Broken hydraulic cylinder. Replace or repair hydraulic cylinder.

Kubota M8560 Steering System Troubleshooting

Steering wheel free play is excessive: Worn steering column coupling or shaft. Change defective component. Hydraulic steering pump is defective. Repair or change steering pump. Loose or worn steering linkage parts. Repair or change steering linkage. Worn or defective hydrostatic steering unit. Change or repair steering unit if required.

Steering is difficult: Air in steering hydraulic system. Bleed air. Dirty steering filter element. Steering filter need to be replaced. Low steering fluid level. Fill the steering system with fluid. Hydrostatic steering unit is defective or worn. Inspect and change as required. Damaged hydraulic steering pump. Repair or replace steering pump. Steering pump control valve is stuck or worn. Install a new flow control valve or clean it. Damaged or incorrectly assembled steering column. Replace steering column or assemble correctly. Front tyres are worn unevenly. Install new tyres. Improper toe-in. Check toe-in and correct. Steering cylinder leakage. Change worn piston rod or damaged cylinder seals.

Front wheels wander to left or right: Hydrostatic steering unit has wear or damage. Check and replace as required. Steering cylinder is worn. Change or repair steering cylinder. Not adjusted toe-in. Adjust toe-in wheels. Worn or loose steering linkage assembly. Check and change as required. Improperly adjusted or defective front hub bearings. Install new bearings or adjust it correctly. Tire pressure is uneven. Adjust the tire pressure.

Kubota M8560 Electrical System Troubleshooting

Battery is not charging: Loose or corroded wire connections. Clean or tighten connections. Defective battery terminal clamps. Replace terminal clamps. Battery is defective. Change the battery. Worn or loose belt. Replace belt or adjust belt tension.

Starter motor cranks slow: Low battery voltage. Low battery charging, charge as required. Battery runs out quickly. Service battery or replace it. Disconnected wiring or bad battery terminals. Connect wires properly or change terminals.

Starter is not cranking: Battery is discharged or defective. Recharge or replace battery. Disconnected or incorrectly connected wires. Inspect battery wires and connect correctly. Low battery power. Low battery charging, charge as required. Starter motor is faulty. Starter needs to be changed.