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Massey Ferguson 390T Troubleshooting

Massey Ferguson 390T Engine Troubleshooting

Engine starts up hard or won't start: Fuel filter element is dirty. Replace the filter element. Air in fuel system. Bleed fuel system. Defective or clogged injection nozzle. Install a new kit of correctly balanced nozzles. Fuel injection pump malfunction. Replace injection pump or repair it.

Diesel shuts off while driving: Improper fuel injection timing. Use the correct fuel injection pump timing adjustment. Fuel filter element clogging. Change filter element. Engine is cold. Warm up to required temperature.

Engine starts and stalls suddenly: Fuel filter element is clogged. Change the filter element. Fuel injection pump is broken. Replace injection pump or repair it. Dirty air cleaner. Change air filter element.

Engine overheats: Clogged radiator core or damaged radiator cap. Clean radiator or install new cap. Lack of coolant in cooling system. Refill to the correct level and inspect system for leaks. Broken or loose fan belt. The fan belt needs to be replaced. Not enough engine oil. Need to add engine oil.

Engine power is reduced: Clogged or defective injection nozzles. Inspect nozzles and replace if necessary. Fuel hoses or lines clogging. Clean fuel lines and hoses. Dirty air filter element. Clean or change the filter. Blown cylinder head gasket. Replace the gasket as required.

Engine noises or knocks: Engine is cold. Warm up to required temperature. Engine oil level is low. Need to add engine oil. Incorrect adjustment of fuel injection pump timing. Adjust the pump as required. Broken or worn pistons. Have pistons replaced. Connecting rod is defective or not aligned. Alignment procedure or replacement is required.

Engine stops while idling: Incorrectly set low idle speed. Adjust low idle speed. Valve clearance is wrong. Adjust valve clearance. Defective fuel injection pump. Repair or replace injection pump.

Insufficient oil pressure: Oil level is low. Add oil to the engine crankcase. Oil pump failure. Replace as required. Oil filter clogging. Clean or change engine oil filter.

Massey Ferguson 390T Transmission Troubleshooting

Transmission makes noise: Defective gears or improper backlash. Install new gears and adjust backlash properly. Shift forks are bent or worn out. Replace the shift forks. Damaged or worn shaft splines. Shaft need to be changed. Low oil level. Check and refill the transmission oil. Bearings are cracked or worn. Replace the bearings. Transmission oil is dirty. Transmission oil change required.

Difficult to shift gears: Corroded or worn gear shift linkage. Install new shift linkage. Worn or unadjusted clutch. Adjust correctly or replace. Shift forks are bent or worn out. Replace the shift forks. Gearshift mechanism is damaged. Replace or repair the mechanism.

Transmission oil pressure is low: Transmission fluid level is low. Add fluid to the transmission housing. Transmission fluid filter element clogging (if equipped). Service or change transmission fluid filter. Defective relief valve. Replace relief valve as required.

External oil leaks: Broken seals or gaskets. Install new components. High transmission fluid level. Drain the excess fluid.

Massey Ferguson 390T Hydraulics Troubleshooting

Hydraulics overheating: Hydraulic fluid type is wrong. Use correct type of hydraulic fluid. Contaminated hydraulic oil. Change hydraulic oil. There is air in the hydraulic system. Bleed hydraulic system. Damaged main relief valve. Replace relief valve.

Hydraulic oil pressure is low: Hydraulic fluid is insufficient. Fill up the hydraulic fluid. Clogged hydraulic oil filter element. Service or replace the hydraulic filter. Leaking hydraulic lines. Check the system and repair leaks. Not adjusted hydraulic spool valve. Need to adjust spool valve. Hydraulic pump is defective. Replace or repair hydraulic fluid pump. Damaged hydraulic cylinder. Install a new hydraulic cylinder or repair it.

3-point hitch can't lift or lifts too slowly: Hydraulic pump malfunction. Repair or replace hydraulic fluid pump. Defective main relief valve. Install a new relief valve. Defective hydraulic control valve. Repair or replace hydraulic valve. Broken hydraulic cylinder. Install a new hydraulic cylinder or repair it. Hydraulic fluid is insufficient. Fill up the hydraulic fluid. Dirty hydraulic fluid filter element. Clean or change hydraulic filter. Excessive hitch loading. Reduce hitch load.

3-point hitch can't drop or drops too slowly: Faulty hydraulic cylinder. Repair or install a new hydraulic cylinder. Hydraulic control valve is not set properly. Adjust properly. Hitch cross shaft is worn. Change the shaft. The 3-point hitch is not adjusted. The three-point hitch must be adjusted.

Hitch lower or lift is jerky: Hydraulic fluid is dirty. Hydraulic fluid change required. Hydraulic pump malfunction. Repair or replace hydraulic oil pump. Air in the hydraulic system. Air bleeding. Hydraulic control valve is faulty. Repair or replace the valve. Hydraulic cylinder not working. Replace or repair hydraulic cylinder.

Massey Ferguson 390T Steering System Troubleshooting

Excessive steering wheel free play: Steering column coupling or shaft is extremely worn out. Change defective part. Damaged hydraulic steering pump. Check the steering pump and replace if necessary. Steering linkage parts are loose or worn. Check and replace as required. Faulty or worn steering control valve. Inspect and replace as required.

Excessive effort to steer: Air in the hydraulic steering system. Bleed the system of air. Dirty steering filter element. Replace steering filter element. Insufficient steering fluid. Fill up the steering fluid. Worn or damaged steering control valve. Check and replace as required. Steering pump is worn. Install a new steering pump. Pump flow control valve is stuck or damaged. Replace or clean flow control valve. Improperly fitted or damaged steering column. Refit or change the steering column. Front tires are worn unevenly. Install new tires. Incorrect toe-in. Adjust toe-in wheels. Steering cylinder is leaking. Change damaged piston rod or worn piston seals.

Tractor is pulling to right or left: Steering control valve has malfunction or wear. Inspect and change as required. Worn steering cylinder. Repair or replace hydraulic steering cylinder. Incorrect toe-in. Adjust toe-in wheels. Steering linkage assembly is worn or loose. Repair or change steering linkage. Worn or incorrectly adjusted or worn front wheel bearings. Install new bearings or adjust it correctly. Tires have uneven wear. Replace the tires.

Massey Ferguson 390T Electrical System Troubleshooting

Battery does not charge: Corroded or loose electrical wire connections. Clean or tighten connections. Battery terminal clamps are defective. Terminal clamps need to be replaced. Battery dead cell. Install a new battery. Belt is damaged or loose. Belt needs to be adjusted or changed.

Starter turns slow: Low battery output voltage. Battery needs to be recharged. Battery is not holding charge. Service charging system or replace battery. Disconnected wires or corroded battery terminals. Check cables and clean or change terminals.

Starter motor is not working: Battery is drained or defective. Battery needs to be recharged or replaced. Disconnected or improperly connected wiring harness. Inspect battery wiring harness and connect as required. Low battery capacity. Low battery charging, charge as required. Faulty starter motor. Repair or change starter.