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New Holland TL70 Troubleshooting

New Holland TL70 Engine Troubleshooting

Engine starts hard or won't start: Clogged fuel filter. Change the filter element. Air in fuel system. Bleed fuel system. Fuel injection nozzles are faulty or clogged. Check and replace nozzles if required. Fuel injection pump is broken. Install a new pump or rebuild.

Engine shuts off suddenly while running: Improper fuel injection timing. Adjust the pump as required. Clogged fuel filter. Clean or replace the filter. Engine is cold. Warm up to required temperature.

Diesel starts and stalls immediately: Fuel filter plugged. Replace the filter element. Fuel injection pump is defective. Rebuild or change fuel pump. Air filter clogged. Install new air filter element.

Engine overheating: Faulty radiator cap or dirty radiator fins. Replace cap or clean radiator. Insufficient coolant. Add coolant fluid and inspect the cooling system for leaks. Loose or damaged fan belt. Replace the fan belt. Engine oil level low. Fill up the oil to required level.

Engine power is insufficient: Fuel injection nozzles are clogged or faulty. Clean or replace injection nozzles. Restricted fuel hoses or lines. Service fuel lines and hoses. Dirty air cleaner. Clean air cleaner element. Cylinder head gasket is damaged. Change cylinder head gasket.

Engine knocking or noise: Low coolant temperature. Normalize the temperature by warming up the engine. Lack of engine oil. Check and refill engine oil. Improper fuel injection timing. Set up as recommended. Pistons are scored or worn. Install new pistons. Connecting rod is misaligned or defective. Align or replace connecting rod.

Engine stalls at low idle speed: Incorrectly adjusted low idle speed. Adjust low idle speed. Valve clearance is not correct. Need to adjust valve clearance. Fuel injection pump is not operating properly. Rebuild or change fuel pump.

Oil pressure is low: Low crankcase oil level. Check and refill the oil. Defective oil pump. Check and replace if necessary. Oil filter clogged. Service or change engine oil filter element.

New Holland TL70 Transmission Troubleshooting

Transmission makes noise: Improper backlash or worn gears. Change worn gears or adjust backlash correctly. Worn or bent shift forks. Change defective shift forks. Worn or stuck shaft splines. Replace defective shaft. Insufficient transmission fluid. Add fluid to the transmission housing. Bearings are damaged or worn. Change the bearings. Transmission oil contamination. Change the oil.

Gears are hard to shift: Gear shift linkage is worn or rusty. Shift linkage need to be replaced. Unadjusted or worn clutch. Adjust clutch or replace if required. Shift forks are worn or bent. Replace defective shift forks. Worn parts of the gear shifting mechanism. Change worn parts.

Insufficient transmission fluid pressure: Transmission oil level is low. Fill the transmission housing with oil. Transmission oil filter is dirty (if equipped). Service or change transmission oil filter. Relief valve malfunction. Replace relief valve.

Transmission oil leakage: Broken seals or gaskets. Replace worn seal or gaskets. Transmission fluid level is exceeded. Excess fluid must be drained.

New Holland TL70 Hydraulics Troubleshooting

Hydraulics overheating: Wrong type of hydraulic fluid. Fill up with the correct type of hydraulic fluid. Contaminated hydraulic fluid. Change hydraulic fluid. Air in hydraulic pipes. Bleed hydraulic pipes. Defective main relief valve. Relief valve must be changed.

Hydraulic fluid pressure is low: Insufficient hydraulic fluid. Fill the system to proper hydraulic fluid level. Clogged hydraulic fluid filter element. Install a new hydraulic filter element. Leaks in hydraulic pipes. Inspect the system for leaks and fix it. Hydraulic spool valve is not set properly. Set the spool valve properly. Damaged hydraulic pump. Replace or repair hydraulic fluid pump. Damaged hydraulic cylinder. Replace or repair hydraulic cylinder.

3-point hitch fails to lift or lifts slowly: Hydraulic pump failure. Change or repair hydraulic oil pump. Main relief valve malfunctioning. Change relief valve. Hydraulic control valve is faulty. Change or repair hydraulic valve. Hydraulic cylinder malfunction. Replace or repair hydraulic cylinder. Low hydraulic oil level. Need to add oil. Dirty hydraulic oil filter element. Hydraulic filter maintenance required. Excessive load on hitch. The load should be reduced.

Hitch cannot be lowered or lowering is too slowly: Defective hydraulic cylinder. Repair or install a new hydraulic cylinder. Incorrect setting hydraulic control valve. Use the correct adjustment. Hitch cross shaft is worn. Change the shaft. Three-point hitch has not been adjusted. Need to make adjustments.

Hitch lowering or lifting is jerky: Hydraulic fluid is dirty. Hydraulic fluid change required. Hydraulic pump is faulty. Install a new hydraulic fluid pump. Air in hydraulic lines. Bleed hydraulic lines. Faulty hydraulic spool valve. Install a new valve or repair it. Hydraulic cylinder failure. Repair or replace hydraulic cylinder.

New Holland TL70 Steering System Troubleshooting

Excessive play in steering: Steering column coupling or shaft is extremely worn out. Change defective part. Steering pump is worn. Install a new hydraulic steering pump. Steering linkage assembly is worn or loose. Replace or repair steering linkage. Steering control unit is damaged or worn. Change or repair steering unit if required.

Steering is hard: Air in steering hydraulic system. Air-bleed steering system. Dirty steering filter element. Service steering filter. Steering fluid level is insufficient. Add oil to steering system. Steering control unit has damage or wear. Replace or repair steering unit as required. Steering pump is worn. Repair or replace steering pump. Stuck or damaged steering pump control valve. Change or flush control valve. Worn or incorrectly fitted steering column. Replace the steering column or refit it correctly. Uneven tyre pressure. Inflate the tyres properly. Incorrect toe-in. Check toe-in and correct. Steering cylinder leakage. Replace worn seal sleeves or damaged piston rod.

Front wheels wander to right or left: Steering control unit has malfunction or wear. Replace or repair steering unit as required. Damaged steering cylinder. Change or repair hydraulic steering cylinder. Improper toe-in. Adjust toe-in properly. Steering linkage assembly is worn or loose. Inspect and change as required. Front wheel bearings are defective or improperly adjusted. Replace or adjust the bearings correctly. Uneven wear on front tires. Replace the tires.

New Holland TL70 Electrical Troubleshooting

Battery does not charge: Electrical cable connections are loose or corroded. Clean or tighten wiring connections. Defective battery terminal clamps. Install new terminal clamps. Bad cell in battery. Battery replacement required. Loose or worn belt. Change belt or adjust belt tension.

Starter motor cranks slow: Low battery output voltage. Charge the battery. Battery runs out quickly. Service charging system or replace battery. Battery cables are disconnected or terminals are faulty. Check cables and clean or change terminals.

Starter motor is not working: Battery is low or faulty. Need to charge or replace the battery. Wire harness is disconnected or incorrectly connected. Check wire harness and connect as required. Battery capacity is low. Recharge the battery. Defective starter motor. Change or repair starter.