Specifications, Service, and Repair of Farm and Lawn Tractors

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New Holland TC29 Troubleshooting

New Holland TC29 Engine Troubleshooting

Engine starts up hard or doesn't start: Fuel filter element clogging. Service or replace the filter. Air in the fuel system. Air bleeding. Dirty or faulty injection nozzles. Check and replace nozzles if required. Fuel injection pump is broken. Install a new pump or rebuild.

Engine stalls during operation: Improper fuel injection timing. Adjust the pump as required. Dirty fuel filter. Clean the filter or install new filter element. Engine is cold. Normalize the temperature by warming up the engine.

Engine starts and stalls suddenly: Fuel filter plugged. Filter maintenance required. Defective fuel injection pump. Replace injection pump or repair it. Plugged air cleaner. Replace air filter element.

Engine overheated: Clogged radiator core or leaking radiator cap. Change cap or clean radiator. Engine coolant is insufficient. The cooling system needs to be refilled and checked for faults. Fan belt is loose or defective. Install new fan belt. Insufficient engine oil. Checking oil level and add if necessary.

Diesel engine loses power: Defective or clogged injection nozzle. Check injection nozzles and replace if required. Fuel hoses or lines clogging. Fuel hoses and lines must be clean. Air filter element clogged. Clean or change. Cylinder head gasket is damaged. Replace the gasket as required.

Abnormal engine noise or knocking: Coolant temperature is low. Normalize the temperature by warming up the engine. Lack of engine oil. Fill up the engine oil. Fuel injection pump timing is not adjusted. Adjust the pump as required. Pistons are worn or broken. Install new pistons. Faulty or misaligned connecting rod. Replace or align connecting rod.

Engine stalls while idle: Improperly adjusted low idle speed. Adjust as required. Improper valve clearance. Correct valve clearance needs to be set. Fuel injection pump is not working correctly. Rebuild or replace pump.

Low oil pressure: Low crankcase oil level. Fill crankcase to proper oil level. Defective oil pump. Check and replace if necessary. Oil filter is clogged. Change or service engine oil filter.

New Holland TC29 Transmission Troubleshooting

Excessive transmission noise: Damaged gears or incorrect backlash. Replace defective gears or set backlash properly. Worn or bent gear shift forks. Change the shift forks. Shaft splines are damaged or worn. Change the shaft. Lack of transmission fluid. Need to add transmission fluid. Worn or broken bearings. Install new bearings. Transmission fluid is contaminated. Change the fluid.

Difficulty shifting gears: Worn or rusty gear shift linkage. Install new shift linkage. Malfunction or incorrect clutch adjustment. Clutch replacement or adjustment required. Worn or damaged gear shift forks. Install new shift forks. Worn out parts of the gearshift mechanism. Replace worn parts.

Transmission oil pressure is low: Lack of transmission fluid. Need to add transmission fluid. Transmission oil filter is dirty (if equipped). Service or replace the transmission oil filter. Relief valve is stuck. Replace relief valve.

External oil leaks: Broken seals or gaskets. Install new seal or gaskets. Too much oil in transmission. Drain the excess oil.

Hydrostatic Transmission Troubleshooting

HST transmission noise: Speed control pedal linkage is bent or not adjusted. Change or adjust linkage. Transmission overload. Reduce loading. Dirty transmission fluid or insufficient fluid level. Fill to required level or change the fluid. Stuck relief valve. Install a new relief valve. Worn or defective parts of the hydrostatic transmission. Check hydrostatic transmission components for defect or damage and change if necessary.

Transmission fluid overheated: Transmission overload. Reduce loading. Cooling components are damaged or clogged. Inspect all cooling components and service or change if necessary. Low oil level. Check transmission oil level and add oil as required. Clogged transmission oil filter element. Service or replace the transmission oil filter.

Lack of power: Low fluid level. Checking transmission fluid level and add if necessary. Relief valve is damaged. Replace relief valve as required. Speed control pedal linkage is bent or not adjusted. Replace or adjust linkage.

Transmission oil leaking: Clogged transmission fluid return tube. Clean or replace return tube. Seals or gaskets are broken. Install new components. High internal transmission case pressure. Change defective parts.

New Holland TC29 Hydraulic System Troubleshooting

Hydraulic system overheating: Improper hydraulic oil type. The proper type of hydraulic oil must be used. Hydraulic oil is dirty. Hydraulic oil change required. Air in hydraulic lines. Bleed hydraulic lines. Main relief valve failure. Relief valve need to be replaced.

Hydraulic fluid pressure too low: Hydraulic fluid is insufficient. Add fluid as required. Dirty hydraulic fluid filter. Change the hydraulic filter element or service if required. Hydraulic piping is leaking. Inspect the system for leaks and fix it. Incorrect setting hydraulic control valve block. Set correctly. Damaged hydraulic pump. Install a new hydraulic oil pump. Faulty hydraulic cylinder. Repair or install a new hydraulic cylinder.

3-point hitch can't lift or lifts too slowly: Hydraulic pump failure. Change or repair hydraulic oil pump. Damaged main relief valve. Install a new relief valve. Hydraulic spool valve is faulty. Replace or repair the valve. Damaged hydraulic cylinder. Change or repair hydraulic cylinder. Low hydraulic oil level. Fill the system to proper hydraulic oil level. Clogged hydraulic fluid filter element. Install a new hydraulic filter element. Hitch is under excessive load. Reduce hitch load.

Hitch cannot be lowered or lowering is too slowly: Hydraulic cylinder is broken. Change or repair hydraulic cylinder. Not adjusted hydraulic spool valve. Need to adjust spool valve. Damaged lift arm shaft. Replace the shaft. Hitch is out of adjustment. The hitch must be adjusted.

Hitch lift or lower is jerky: Hydraulic fluid is dirty. Hydraulic fluid change required. Faulty hydraulic pump. Change or repair hydraulic oil pump. Air in hydraulic system. Bleed air from hydraulic system. Hydraulic control valve is faulty. Repair or replace the valve. Hydraulic cylinder malfunction. Install a new hydraulic cylinder or repair it.

New Holland TC29 Steering System Troubleshooting

Excessive steering wheel play: Steering column coupling or shaft is extremely worn out. Replace defective part. Faulty steering pump. Install a new steering pump. Steering linkage parts are loose or worn. Repair or change steering linkage. Steering control unit has malfunction or wear. Replace or repair steering unit as required.

Steering is difficult: Air lock in the steering system. Bleed air. Clogged steering filter. Service or replace the steering filter. Steering fluid level is insufficient. Add oil to steering system. Steering control unit is damaged or worn. Repair or replace the steering unit. Steering pump failure. Check the hydraulic steering pump and change if necessary. Pump flow control valve is damaged or stuck. Replace or service 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. Improper toe-in. Check toe-in and correct. Steering cylinder leaks. Change damaged piston rod or worn seal sleeves.

Tractor pulls to left or right: Steering control unit has damage or wear. Check and replace as required. Steering cylinder damage. Repair or change steering cylinder. Incorrect toe-in. Check and adjust toe-in. Steering linkage parts are loose or worn. Change or repair steering linkage. Defective or improperly adjusted front wheel bearings. Install new bearings or adjust it correctly. Front tires wear unevenly. Change the tires.

New Holland TC29 Electrical Troubleshooting

Battery will not charge: Loose or corroded wire connections. Tighten or service cable connections. Defective battery terminal clamps. Install new terminal clamps. Battery is defective. Battery change required. Belt is damaged or loose. Replace belt or adjust belt tension.

Starter cranks slow: Low battery voltage. Recharge the battery. Battery is draining quickly. Battery needs to be serviced or replaced. Terminals are faulty or battery cables are disconnected. Connect cables properly or replace terminals.

Starter is not cranking: Battery is low or faulty. Recharge or replace battery. Disconnected or incorrectly connected wires. Inspect battery wires and connect correctly. Battery capacity is low. Battery is drained, recharge it. Starter motor failure. Repair or replace starter.

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