Specifications, Service and Repair of Farm and Lawn Tractors

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Massey Ferguson 1660 Troubleshooting

Massey Ferguson 1660 Engine Troubleshooting

Diesel hard to start or doesn't start: Clogged fuel filter. Install new filter element. Air in the fuel lines. Bleed the fuel lines. Faulty fuel injection nozzles. Check and replace nozzles if required. Fuel injection pump is not operating properly. Change pump or rebuild it.

Engine stalls while running: Fuel injection pump timing is wrong. Adjust the pump as required. Clogged fuel filter. Filter maintenance required. Engine is not fully warmed up. Warm up to required temperature.

Engine starts and stops suddenly: Fuel filter element is dirty. Clean the filter element. Fuel injection pump failure. Rebuild or replace pump. Clogged air filter element. Replace air filter element.

Engine overheating: Clogged radiator fins or damaged radiator cap. Clean radiator or replace cap. Not enough coolant. Add coolant fluid and inspect the cooling system for leaks. Loose or damaged fan belt. If necessary, replace the belt. Not enough engine oil. Check oil level and add oil as required.

Reduced engine power: Defective or clogged injection nozzle. Clean or replace injection nozzles. Fuel lines or hoses are dirty. Clean fuel lines and hoses. Air filter is dirty. Carry out maintenance on air filter. Cylinder-head gasket is broken. Gasket should be replaced.

Engine knocking or noise: Low coolant temperature. Warm up engine as required. Engine oil level is low. Fill the crankcase with engine oil. Fuel injection pump timing is wrong. Set up as recommended. Worn or broken pistons. Replace the pistons as required. Connecting rod is not aligned or worn. Replace or align connecting rod.

Engine stalls while idling: Incorrectly set low idle speed. Adjust low idling as recommended. The valve clearance is incorrect. Adjust valve clearance. Damaged fuel injection pump. Repair or replace injection pump.

Oil pressure is low: Oil level is low. Fill crankcase to proper oil level. Worn oil pump. Repair or change. Oil filter clogged. Change or clean engine oil filter element.

Massey Ferguson 1660 Transmission Troubleshooting

Transmission is excessively noisy: Improper backlash or worn gears. Replace defective gears or set backlash properly. Worn or damaged gear shift forks. Install new shift forks. Damaged or worn shaft splines. Change defective shaft. Lack of transmission fluid. Check and refill the transmission fluid. Bearings are damaged or worn. Bearings need to be replaced. Transmission fluid is dirty. Fill up with fresh transmission fluid.

Gears are hard to shift: Corroded or worn gear shift linkage. Lubricate or replace shift linkage. Improperly adjusted or worn clutch. Adjust clutch or change if necessary. Worn or bent gear shift forks. Shift forks need to be changed. Worn out parts of the gearshift mechanism. Replace worn parts.

Insufficient transmission fluid pressure: Insufficient transmission oil. Check and refill the transmission oil. Transmission oil filter element clogging (if equipped). Clean or change transmission oil filter. Stuck relief valve. Replace the valve.

Transmission fluid leaks: Damaged seals or gaskets. Replace worn gaskets or seal. Too much fluid in transmission. Excess fluid must be drained.

Massey Ferguson 1660 Hydraulics Troubleshooting

Hydraulic system is overheated: Hydraulic oil type is incorrect. Pour the correct type of oil. Hydraulic fluid is dirty. Hydraulic fluid change required. Air trapped in hydraulic system. Bleed air from system. Damaged main relief valve. Relief valve need to be replaced.

Hydraulic fluid pressure is insufficient: Hydraulic oil level low. Need to add oil. Clogged hydraulic oil filter. Clean or change hydraulic filter. Leaking hydraulic pipes. Check the system and repair leaks. Hydraulic spool valve is not set properly. Set the spool valve properly. Hydraulic pump failure. Install a new hydraulic oil pump. Defective hydraulic cylinder. Replace or repair hydraulic cylinder.

Hitch does not raise or raises very slowly: Hydraulic pump is faulty. Change or repair hydraulic oil pump. Defective main relief valve. Relief valve replacement required. Hydraulic spool valve is faulty. Repair or replace the valve. Hydraulic cylinder malfunction. Change or repair hydraulic cylinder. Hydraulic oil level low. Need to add oil. Clogged hydraulic fluid filter element. Hydraulic filter maintenance required. Excessive loading on the hitch. Reduce the load is required.

Hitch fails to drop or drops slowly: Hydraulic cylinder is broken. Replace or repair hydraulic cylinder. Not adjusted hydraulic spool valve. Need to adjust spool valve. Worn lift arm shaft. Replace the shaft. The 3-point hitch is not adjusted. The hitch must be adjusted.

Jerky lowering or lifting of the hitch: Hydraulic fluid contamination. Change hydraulic fluid. Hydraulic pump failure. Change or repair hydraulic oil pump. Air in hydraulic system. Bleed air from hydraulic system. Hydraulic spool valve block is defective. Repair or replace hydraulic valve. Hydraulic cylinder is broken. Replace or repair hydraulic cylinder.

Massey Ferguson 1660 Steering System Troubleshooting

Excessive steering wheel free play: Worn steering column coupling or shaft. Change defective part. Worn steering pump. Steering pump needs to be repaired or replaced. Loose or worn steering linkage components. Change or repair steering linkage. Steering control valve has wear or malfunction. Inspect and replace as required.

Stiff steering: Air in steering system. Bleed the system of air. Clogged steering filter element. Change steering filter element. Steering fluid level is insufficient. Add oil to steering system. Steering control valve has damage or wear. Inspect and change as required. Damaged hydraulic steering pump. Repair or replace steering pump. Steering pump control valve is faulty or stuck. Service or change control valve. Improperly installed or damaged steering column. Install the steering column as required or replace it. Tire pressure is uneven. Adjust the tire pressure. Incorrect toe-in. Check toe-in and correct. Steering cylinder leakage. Replace scratched piston rod or worn cylinder seals.

Tractor is pulling to right or left: Steering control valve has malfunction or wear. Check and replace as required. Worn steering cylinder. Change or repair steering cylinder. Incorrect toe-in. Check and adjust toe-in. Loose or worn steering linkage parts. Inspect and change as required. Incorrectly adjusted or damaged front wheel bearings. Replace or adjust the bearings correctly. Uneven tyre pressure. Inflate the tyres properly.

Massey Ferguson 1660 Electrical Troubleshooting

Battery will not charge: Loose or corroded cable connections. Tighten or clean electrical wiring connections. Faulty battery terminal connectors. Replace terminal connectors. Battery is worn. Use a new battery. Loose or defective belt. Need to adjust belt tension or replace belt.

Starter turning slow: Low battery capacity. Battery is drained, recharge it. Battery runs out quickly. Battery needs service or replacement. Bad battery terminals or disconnected wiring. Connect wires correctly or change terminals.

Starter is not cranking: Battery is low or faulty. Charge or replace the battery. Wiring is incorrectly connected or disconnected. Inspect wiring and connect correctly. Battery power is low. Battery is drained, recharge it. Starter motor failing. Repair or install a new starter.

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