Specifications, Service, and Repair of Farm and Lawn Tractors

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Massey Ferguson 135 Troubleshooting

Massey Ferguson 135 Engine Troubleshooting

Engine starts hard or won't start: Dirty fuel filter. Service the filter. Air in the fuel lines. Bleed the fuel lines. Clogged or burnt injection nozzle. Replace injection nozzles. Faulty fuel injection pump. Rebuild or install a new injection pump.

Engine stops suddenly during operation: Incorrect adjustment of fuel injection pump timing. Set the fuel pump timing correctly. Fuel filter plugging. Clean or change the filter. Engine is not preheated. Warm up to required temperature.

Engine starts and then shuts off: Clogged fuel filter. Change the filter element. Faulty fuel injection pump. Repair or install new pump. Dirty air filter element. Change air filter element.

Engine overheated: Clogged radiator core or leaking radiator cap. Clean radiator or change cap. Not enough coolant. The cooling system needs to be refilled and checked for faults. Loose or defective fan belt. Belt replacement is recommended. Engine oil insufficient. Check oil level and add oil as required.

Diesel engine is losing power: Dirty or faulty injection nozzles. Clean or replace injection nozzles. Fuel hoses or lines clogging. Service fuel lines and hoses. Clogged air filter element. Replace air filter element. Leaking cylinder head gasket. Replace cylinder head gasket.

Engine noise or knocking: Low coolant temperature. Normalize the temperature by warming up the engine. Not enough engine oil. Fill up the oil to required level. Incorrect adjustment of fuel injection pump timing. Set up as recommended. Pistons are broken or worn. Pistons need to be replaced. Connecting rod is misaligned or worn. Replace or align connecting rod.

Engine stops when idling: Low idle speed setting is not correct. Correct the settings. Excessive valve clearance. Correct valve clearance needs to be set. Fuel injection pump is faulty. Replace injection pump or repair it.

Oil pressure is insufficient: Oil level is insufficient. Check oil level and add oil as required. Oil pump malfunction. Inspect and change as required. Dirty oil filter element. Service or change engine oil filter element.

Massey Ferguson 135 Transmission Troubleshooting

Excessive transmission noise: Defective gears or improper backlash. Replace gears or adjust backlash correctly. Worn or damaged gear shift forks. Replace defective shift forks. Shaft splines are stuck or worn out. Change defective shaft. Lack of transmission oil supply. Fill the transmission housing with oil. Worn or cracked bearings. Faulty bearings should be changed. Transmission fluid is dirty. Change the fluid.

Hard to shift gears: Worn or rusty gear shift linkage. Lubricate or replace the shift linkage. Clutch is worn or not adjusted. Replace or adjust clutch. Worn or bent shift forks. Replace the shift forks. Worn parts of the gear shifting mechanism. Change worn parts.

Insufficient transmission oil pressure: Low oil level. Need to add transmission oil. Clogged transmission fluid filter (if equipped). Replace or service transmission fluid filter. Defective relief valve. Install a new valve.

Transmission oil leaks: Seals or gaskets are broken. Gaskets or seal replacement required. Transmission fluid level is high. Correct the fluid level.

Massey Ferguson 135 Hydraulic System Troubleshooting

Hydraulic system overheated: Improper type of hydraulic fluid. The correct type of fluid must be used. Hydraulic fluid contamination. Change hydraulic fluid. Air in hydraulic lines. Bleed hydraulic lines. Main relief valve is damaged. Relief valve replacement required.

Low hydraulic fluid pressure: Hydraulic oil level low. Check and refill the hydraulic oil. Clogged hydraulic fluid filter. Service or replace the hydraulic filter. Leaking hydraulic lines. Inspect the system for leaks and fix it. Hydraulic control valve block is set improperly. Set properly. Hydraulic pump malfunction. Repair or replace hydraulic fluid pump. Hydraulic cylinder failure. Repair or install a new hydraulic cylinder.

Hitch does not raise or raises very slowly: Hydraulic pump is defective. Change or repair hydraulic fluid pump. Damaged main relief valve. Replace relief valve. Hydraulic control valve is faulty. Repair or change hydraulic valve. Faulty hydraulic cylinder. Repair or change hydraulic cylinder. Hydraulic fluid is insufficient. Fill the system to proper hydraulic fluid level. Clogged hydraulic oil filter. Clean the hydraulic filter element or replace if necessary. Heavy load on the hitch. The load should be reduced.

3-point hitch won't lower or lowers slowly: Hydraulic cylinder is broken. Repair or change hydraulic cylinder. Incorrect adjusted hydraulic control valve. Adjust correctly. Hitch cross shaft is damaged. Change the shaft. The 3-point hitch is not adjusted. Need to make adjustments.

Hitch lift or lower is jerky: Contaminated hydraulic fluid. Change hydraulic fluid. Faulty hydraulic pump. Install a new hydraulic fluid pump. Air in hydraulic pipes. Bleed hydraulic pipes. Defective hydraulic control valve block. Replace or repair the valve. Damaged hydraulic cylinder. Repair or change hydraulic cylinder.

Massey Ferguson 135 Steering Troubleshooting

Excessive steering wheel play: Steering column shaft or coupling is worn out. Replace faulty part. Steering pump failure. Install a new steering pump. Steering linkage components are loose or worn. Repair or replace steering linkage. Steering control valve has damage or wear. Replace or repair steering control valve as required. Steering gearbox components are worn. Change defective steering box parts.

Steering wheel is difficult to turn: Air lock in hydraulic steering system. Bleed air from system. Clogged steering filter. Replace steering filter element. Steering oil insufficient. Check and refill steering oil. Steering control valve has malfunction or wear. Check and replace as required. Steering box parts have malfunctions. Repair power steering gearbox. Steering pump stopped working. Repair or replace steering pump. Stuck or damaged steering pump control valve. Clean or install new control valve. Improperly fitted or damaged steering column. Refit or change the steering column. Tyre pressure is uneven. Adjust the tyre pressure. Improper toe-in. Adjust toe-in wheels.

Front wheels wander to right or left: Steering gearbox parts are damaged. Replace defective components of power steering gearbox. Steering control valve is damaged or worn. Replace or repair steering control valve as required. Improper toe-in. Adjust toe-in wheels. Loose or worn steering linkage components. Check and change as required. Incorrectly adjusted or worn front wheel bearings. Replace or adjust the bearings correctly. Front tires wear unevenly. Change the tires.

Massey Ferguson 135 Electrical System Troubleshooting

Battery is not charging: Loose or corroded wire connections. Service or tighten connections. Faulty battery terminal clamps. Terminal clamps need to be replaced. Battery dead cell. Replace the battery. Loose or damaged belt. Replace belt or adjust belt tension.

Starter turns slow: Battery voltage is low. Charge the battery. Battery will not hold charge. Service or replace the battery. Disconnected wiring or bad battery terminals. Check cable connections and replace or service terminals.

Starter will not work: Battery is discharged or defective. Replace or charge as required. Battery wires are disconnected or incorrectly connected. Check wires and connect correctly. Low battery output. Low battery charging, charge as required. Starter motor is faulty. Starter should be changed.

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