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New Holland TS125A Troubleshooting

New Holland TS125A Engine Troubleshooting

Engine starts hard or doesn't start: Fuel filter plugged. Service the filter. There is air in the fuel system. Bleed the system. Fuel injection nozzles are faulty or clogged. Check injection nozzles and replace if required. Fuel injection pump failure. Install a new fuel pump or repair.

Engine stops running suddenly: Fuel injection pump timing is wrong. Adjust fuel injection pump as required. Fuel filter element is clogged. Service the filter. Engine is cold. Warm up the engine.

Diesel starts but then stops: Dirty fuel filter. Service the filter. Fuel injection pump damage. Repair or install a new fuel pump. Restricted intake air. Change air filter element.

Engine overheating: Dirty radiator core or defective radiator cap. Change cap or clean radiator. Engine coolant is insufficient. Add coolant fluid and inspect the cooling system for leaks. Loose or damaged fan belt. Replace as required. Not enough engine oil. Fill the crankcase with engine oil.

Lack of engine power: Fuel injection nozzles are damaged or dirty. Install a new kit of correctly balanced nozzles. Fuel hoses or lines are clogged. Clean fuel lines and hoses. Air filter plugged. Service or replace the air filter. Cylinder head gasket is damaged. Replace the gasket as required.

Engine noises or knocks: Coolant temperature is low. Normalize the temperature by warming up the engine. Lack of engine oil. Check oil level and add oil as required. Incorrect adjustment of fuel injection pump timing. Set up as recommended. Broken or worn pistons. Have pistons replaced. Misaligned or faulty connecting rod. Replace or align connecting rod.

Engine stalls when idle: Improperly adjusted low idle speed. Correct low idle settings. Valve clearance is wrong. Have it adjusted. Fuel injection pump is damaged. Repair or install a new fuel pump.

Insufficient oil pressure: Low crankcase oil level. Check and refill the oil. Oil pump malfunction. Repair or replace. Clogged oil filter element. Change or service engine oil filter.

New Holland TS125A Transmission Troubleshooting

Transmission noise: Gears are damaged or backlash is incorrect. Install new gears and adjust backlash properly. Worn or damaged gear shift forks. Shift forks need to be changed. Worn or damaged shaft splines. Change the shaft. Lack of transmission oil supply. Add oil to the transmission housing. Bearings are damaged or worn. Bearings need to be replaced. Transmission fluid is contaminated. Change the fluid.

Hard shifts: Gear shift linkage is rusty or worn. Lubricate or replace shift linkage. Clutch is faulty or misadjusted. Adjust clutch or replace if required. Shift forks are bent or worn out. Change the shift forks. Gear shifting mechanism is defective. Defective parts must be replaced.

Insufficient transmission fluid pressure: Transmission oil level is low. Need to add transmission oil. Transmission oil filter is dirty (if equipped). Service or replace the transmission oil filter. Stuck relief valve. Replace valve as required.

Transmission oil leaking: Damaged gaskets or seals. Change defective seal or gaskets. Too much oil in transmission. Drain the excess oil.

New Holland TS125A Hydraulics Troubleshooting

Hydraulics overheating: Wrong type of hydraulic oil. Pour the correct type of hydraulic oil. Hydraulic fluid contamination. Change hydraulic fluid. Air in hydraulic pipes. Bleed hydraulic pipes. Main relief valve is defective. Relief valve must be changed.

Insufficient hydraulic fluid pressure: Hydraulic oil is insufficient. Check and refill the hydraulic oil. Dirty hydraulic fluid filter. Clean or change hydraulic filter. Leaks in hydraulic lines. Inspect hydraulic system for leaks and repair it. Hydraulic spool valve is out of adjustment. Spool valve adjustment required. Hydraulic pump malfunction. Install a new hydraulic oil pump. Hydraulic cylinder failure. Repair or install a new hydraulic cylinder.

Hitch won't raise or raises slowly: Faulty hydraulic pump. Repair or replace hydraulic fluid pump. Main relief valve failure. Change relief valve. Damaged hydraulic control valve. Repair or replace the valve. Hydraulic cylinder is defective. Change or repair hydraulic cylinder. Low hydraulic fluid level. Fill up the hydraulic fluid. Hydraulic oil filter element is clogged. Clean or replace the hydraulic filter. Heavy load on the hitch. Reduce hitch load.

Hitch fails to drop or drops slowly: Defective hydraulic cylinder. Repair or change hydraulic cylinder. Hydraulic spool valve is out of adjustment. Spool valve adjustment required. Worn hitch rock shaft. Install a new shaft. The hitch is not adjusted. Need to make adjustments.

Hitch jerks when drop or lift: Hydraulic fluid contamination. Change hydraulic fluid. Hydraulic pump is defective. Install a new hydraulic fluid pump. Air in hydraulic lines. Bleed hydraulic lines. Defective hydraulic control valve. Repair or change the valve. Hydraulic cylinder is defective. Repair or replace hydraulic cylinder.

New Holland TS125A Steering Troubleshooting

Steering wheel has too much free-play: Steering column shaft or coupling is worn out. Replace defective component. Steering pump not working. Check the hydraulic steering pump and change if necessary. Loose or worn steering linkage parts. Replace or repair steering linkage. Defective or worn steering control unit. Repair or change the steering control unit.

Steering wheel is difficult to turn: Air trapped inside steering system. Bleed air from system. Steering filter is plugged. Steering filter need to be replaced. Not enough steering fluid. Fill up steering fluid to required level. Steering control unit has damage or wear. Repair or replace the steering control unit. Steering pump failure. Repair or change steering pump. Steering pump control valve is faulty or stuck. Service or change control valve. Improperly assembled or defective steering column. Reassemble or change the steering column. Tire pressure is uneven. Adjust the tire pressure. Not adjusted toe-in. Check and adjust toe-in. Steering cylinder is leaking. Replace scratched piston rod or worn cylinder seals.

Front wheels wander to right or left: Steering control unit has damage or wear. Repair or change the steering control unit. Defective steering cylinder. Replace or repair steering cylinder. Improper toe-in. Check toe-in and correct. Steering linkage parts are loose or worn. Inspect and replace as required. Incorrectly adjusted or damaged front wheel bearings. Adjust correctly or replace bearings. Tire pressure uneven. Inflate the tires correctly.

New Holland TS125A Electrical System Troubleshooting

Battery won’t charge: Electrical cable connections are loose or corroded. Tighten or clean connections. Faulty battery terminal clamps. Install new terminal clamps. Worn-out battery. Battery replacement required. Loose or damaged belt. Need to adjust belt tension or replace belt.

Starter cranks slow: Low battery output voltage. Charge the battery. Battery runs out quickly. Service battery or change it. Faulty battery terminals or disconnected cables. Check cable connections and change or clean terminals.

Starter motor won't turn: Battery is discharged or worn. Charge or replace the battery. Disconnected or incorrectly connected wires. Inspect battery wires and connect correctly. Low battery capacity. Charge the battery. Defective starter motor. Replace or repair starter.