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New Holland TM150 Troubleshooting

New Holland TM150 Engine Troubleshooting

Diesel engine hard to start or doesn't start: Fuel filter plugged. Change the filter element. Air in fuel tank. Bleed fuel tank. Fuel injection nozzles are dirty or defective. Service or change injection nozzles. Fuel injection pump is not working correctly. Repair or replace injection pump.

Engine stalls while running: Timing of fuel injection pump is incorrect. Adjust fuel injection pump as required. Dirty fuel filter. Install new filter element. Engine not warmed up. Normalize the temperature by warming up the engine.

Diesel starts and suddenly stops: Dirty fuel filter. Clean or replace the filter. Fuel injection pump is damaged. Repair or replace injection pump. Dirty air filter element. Service air cleaner.

Engine is overheated: Faulty radiator cap or dirty radiator fins. Replace cap or clean radiator. Coolant level is low. Fill the cooling system and check components for leaks or other faults. Fan belt is loose or defective. Belt replacement is recommended. Engine oil level is insufficient. Checking oil level and add if necessary.

Poor engine power: Defective injection nozzle. Clean or change injection nozzles. Clogged fuel lines or hoses. Fuel lines and hoses need to be cleaned. Air filter element clogged. Carry out maintenance on air filter. Damaged cylinder-head gasket. Replace the gasket as required.

Engine noise or knocking: Engine not warmed up. Normalize the temperature by warming up the engine. Engine oil insufficient. Fill up the engine oil. Timing of fuel injection pump is incorrect. Adjust fuel injection pump as required. Broken or worn pistons. Install new pistons. Connecting rod is defective or misaligned. Connecting rod needs to be aligned or changed.

Engine stops at low idle speed: Incorrect low idle setting. Normalize low idle speed. The valve clearance is incorrect. Check and adjust as required. Fuel injection pump is defective. Repair or install new pump.

Oil pressure is low: Low oil level. Fill up the engine oil. Oil pump is damaged. Repair or change. Oil filter element clogging. Clean or change engine oil filter.

New Holland TM150 Transmission Troubleshooting

Transmission noise: Improper backlash or worn gears. Replace gears or adjust backlash correctly. Worn or damaged gear shift forks. Change the shift forks. Shaft splines are worn or damaged. Change defective shaft. Low fluid level. Check and refill the transmission fluid. Worn or cracked bearings. Bearings replacement required. Transmission fluid contamination. Change the fluid.

Difficulty shifting gears: Gear shift linkage is corroded or worn. Change or lubricate shift linkage. Unadjusted or worn clutch. Adjust clutch or replace if required. Worn or bent shift forks. Shift forks need to be changed. Worn parts of the gear shifting mechanism. Change worn parts.

Transmission oil pressure is insufficient: Transmission oil insufficient. Fill up the transmission oil. Dirty transmission fluid filter (if fitted). Replace or service transmission fluid filter. Relief valve is damaged. Replace relief valve as required.

Transmission fluid leaking: Damaged gaskets or seals. Change defective gaskets or seal. Transmission fluid level is high. Correct the fluid level.

New Holland TM150 Hydraulics Troubleshooting

Hydraulic system is too hot: Hydraulic fluid type is wrong. Use correct type of hydraulic fluid. Hydraulic oil contamination. Change the oil. Air trapped in hydraulic system. Bleed air from system. Main relief valve is defective. Change relief valve.

Hydraulic fluid pressure is low: Hydraulic fluid is insufficient. Fill the system to proper hydraulic fluid level. Clogged hydraulic oil filter. Hydraulic filter maintenance required. Leaking hydraulic pipes. Inspect the system for leaks and fix it. Hydraulic control valve block is out of adjustment. Control valve needs to be adjusted. Hydraulic pump is defective. Change or repair hydraulic fluid pump. Hydraulic cylinder malfunction. Repair or replace hydraulic cylinder.

3-point hitch won't lift or lifts slowly: Hydraulic pump is defective. Change or repair hydraulic oil pump. Main relief valve is defective. Relief valve need to be replaced. Defective hydraulic spool valve block. Repair or replace the valve. Broken hydraulic cylinder. Repair or install a new hydraulic cylinder. Hydraulic fluid is insufficient. Fill the system to proper hydraulic fluid level. Clogged hydraulic oil filter element. Replace hydraulic filter element or service if necessary. Excessive load on hitch. The load should be reduced.

Hitch cannot be dropped or dropping is too slow: Damaged hydraulic cylinder. Change or repair hydraulic cylinder. Hydraulic spool valve is not set properly. Set the spool valve properly. Hitch cross shaft is damaged. Replace the shaft. Hitch is out of adjustment. Adjust as required.

Hitch lower or lift is jerky: Hydraulic fluid contamination. Change hydraulic fluid. Hydraulic pump failure. Change or repair hydraulic fluid pump. Air in hydraulic lines. Bleed hydraulic lines. Hydraulic spool valve block is faulty. Install a new hydraulic valve or repair it. Hydraulic cylinder is faulty. Change or repair hydraulic cylinder.

New Holland TM150 Steering System Troubleshooting

Excessive steering wheel play: Steering column shaft or coupling is worn out. Replace faulty part. Steering pump is faulty. Repair or change steering pump. Loose or worn steering linkage parts. Repair or replace steering linkage. Faulty or worn steering control unit. Inspect and replace as required.

Steering wheel is very heavy to turn: Air trapped inside steering system. Bleed the steering system. Steering filter clogging. Clean steering filter element. Steering oil level low. Add oil to steering system. Faulty or worn steering control unit. Inspect and change as required. Steering pump stopped working. Steering pump needs to be replaced or repaired. Stuck or damaged steering pump control valve. Flush or change flow control valve. Incorrectly mounted or defective steering column. Mount the steering column correctly or replace it. Tires have uneven wear. Replace the tires. Incorrect toe-in. Check toe-in and correct. Steering cylinder leaks. Replace worn seal sleeves or damaged piston rod.

Tractor pulls to right or left: Steering control unit has wear or malfunction. Repair or change the steering control unit. Damaged steering cylinder. Replace or repair steering cylinder. Not adjusted toe-in. Check toe-in and correct. Loose or worn steering linkage parts. Replace or repair steering linkage. Damaged or improperly adjusted or worn front wheel bearings. Adjust correctly or install new bearings. Tires have uneven wear. Replace the tires.

New Holland TM150 Electrical Troubleshooting

Battery cannot be charged: Loose or corroded electrical wiring connections. Clean or tighten wiring connections. Battery terminal connectors are defective. Replace terminal connectors. Battery faulty cell. Change the battery. Belt is loose or defective. Need to adjust belt tension or replace belt.

Starter turns slowly: Battery power is low. Battery is drained, recharge it. Battery is draining quickly. Service battery or replace it. Bad battery terminals or disconnected wiring. Connect wires properly or change terminals.

Starter is not cranking: Battery is discharged or defective. Charge or change the battery. Wire harness is disconnected or incorrectly connected. Check wire harness and connect as required. Low battery output. Battery is drained, recharge it. Starter motor failing. Starter needs to be replaced.