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New Holland TG305 Troubleshooting

New Holland TG305 Engine Troubleshooting

Engine starts hard or will not start: Fuel filter element is clogged. Replace the filter element. Air in the fuel system. Air bleeding. Defective injection nozzle. Change fuel injection nozzles. Fuel injection pump malfunction. Replace injection pump or repair it.

Diesel shuts off while driving: Incorrect adjustment of fuel injection pump timing. Set up as recommended. Dirty fuel filter. Replace filter element. Coolant temperature is low. Warm up the engine.

Engine starts but stops suddenly: Dirty fuel filter. Install new filter element. Damaged fuel injection pump. Change pump or rebuild it. Air cleaner is dirty. Install new air filter element.

Engine overheated: Dirty radiator core or defective radiator cap. Clean radiator or change cap. Lack of coolant in cooling system. Add coolant fluid to cooling system and also check it for leaks. Damaged or worn fan belt. Change as required. Engine oil level low. Add oil to the engine crankcase.

Engine lacks power: Fuel injection nozzles are clogged or faulty. Check injection nozzles and replace if required. Fuel hoses or lines are dirty. Service fuel lines and hoses. Clogged air cleaner. Clean or replace element. Defective cylinder head gasket. Replace cylinder head gasket.

Engine knocks or noises: Engine not warmed up. Normalize the temperature by warming up the engine. Engine oil level low. Add oil to the engine crankcase. Improper setting of fuel injection pump timing. Adjust according to specifications. Worn or scored pistons. Pistons need to be replaced. Connecting rod is worn or misaligned. Alignment procedure or replacement is required.

Engine stops while idle: Incorrect low idle speed adjustment. Adjustment required. The valve clearance is incorrect. Need to adjust valve clearance. Damaged fuel injection pump. Change pump or rebuild it.

Insufficient oil pressure: Insufficient engine oil. Add oil to the engine crankcase. Worn oil pump. Check and replace if necessary. Plugged engine oil filter. Replace or clean engine oil filter element.

New Holland TG305 Transmission Troubleshooting

Transmission makes excessive noise: Improper backlash or worn gears. Adjust backlash properly or replace the gears. Damaged or worn gear shift forks. Replace defective shift forks. Worn or damaged shaft splines. Replace the shaft. Lack of transmission fluid. Checking transmission fluid level and add if necessary. Worn or cracked bearings. Change faulty bearings. Transmission oil is dirty. Fill up with fresh transmission oil.

Gear shift is hard: Gear shift linkage is corroded or worn. Install new shift linkage. Clutch is out of adjustment or defective. Adjust or install new clutch. Shift forks are bent or worn out. Replace defective shift forks. Worn parts of the gear shifting mechanism. Change worn parts.

Low transmission fluid pressure: Transmission fluid level is low. Need to add transmission fluid. Dirty transmission fluid filter (if fitted). Clean or change transmission fluid filter. Relief valve failure. Replace relief valve.

External fluid leaks: Seals or gaskets are worn. Gaskets or seal replacement required. Transmission fluid level is exceeded. Excess fluid must be drained.

New Holland TG305 Hydraulics Troubleshooting

Hydraulics overheating: Wrong hydraulic fluid type. Pour the proper type of fluid. Contaminated hydraulic fluid. Change hydraulic fluid. Air in the hydraulic system. Air bleeding. Damaged main relief valve. Relief valve must be changed.

Hydraulic fluid pressure is insufficient: Hydraulic oil level low. Check and refill the hydraulic oil. Hydraulic oil filter element is clogged. Service the hydraulic filter or change if required. Leaks in hydraulic lines. Identify leaks in the system and repair it. Hydraulic control valve is not set properly. Adjust properly. Hydraulic pump failure. Replace or repair hydraulic oil pump. Hydraulic cylinder not working. Repair or change hydraulic cylinder.

Hitch won't raise or raises slowly: Damaged hydraulic pump. Replace or repair hydraulic oil pump. Main relief valve failure. Replace relief valve. Defective hydraulic control valve block. Repair or replace hydraulic valve. Hydraulic cylinder is faulty. Change or repair hydraulic cylinder. Hydraulic fluid level low. Fill the system to proper hydraulic fluid level. Clogged hydraulic oil filter. Clean or change hydraulic filter. Heavy load on the hitch. Load needs to be reduced.

Hitch not lowering or hitch lowers slowly: Hydraulic cylinder is faulty. Install a new hydraulic cylinder or repair it. Hydraulic control valve block is set improperly. Set properly. Damaged hitch cross shaft. Install a new shaft. Hitch is out of adjustment. Adjustment is required.

Hitch jerks when drop or lift: Hydraulic fluid is contaminated. Fill up with new hydraulic fluid. Hydraulic pump is defective. Change or repair hydraulic fluid pump. Air trapped in hydraulic system. Bleed air from system. Hydraulic spool valve is defective. Replace or repair the valve. Defective hydraulic cylinder. Replace or repair hydraulic cylinder.

New Holland TG305 Steering Troubleshooting

Steering wheel has too much free-play: Steering column coupling or shaft is extremely worn out. Change faulty part. Damaged hydraulic steering pump. Steering pump needs to be repaired or replaced. Steering linkage joints are worn or loose. Replace or repair steering linkage. Steering control unit has malfunction or wear. Repair or change the steering control unit.

Steering wheel is difficult to turn: Air lock in the steering system. Air-bleed steering system. Steering filter is clogged. Clean or change it. Low steering fluid level. Fill the steering system with fluid. Steering control unit has wear or malfunction. Repair or change the steering unit. Hydraulic steering pump is defective. Install a new hydraulic steering pump. Pump flow control valve is worn or stuck. Clean or replace control valve. Damaged or incorrectly assembled steering column. Replace steering column or assemble correctly. Tire pressure uneven. Inflate the tires correctly. Improper toe-in. Adjust toe-in properly. Steering cylinder leakage. Replace worn cylinder seals or scratched piston rod.

Tractor pulls to left or right: Steering control unit is defective or worn. Change or repair steering unit if required. Steering cylinder is defective. Replace or repair hydraulic steering cylinder. Incorrect toe-in. Check toe-in and correct. Loose or worn steering linkage components. Repair or replace steering linkage. Improperly adjusted or defective front wheel bearings. Adjust correctly or replace bearings. Uneven tyre pressure. Inflate the tyres properly.

New Holland TG305 Electrical System Troubleshooting

Battery cannot be charged: Electrical cable connections are corroded or loose. Clean or tighten connections. Electrical terminal connectors are faulty. Replace terminal connectors. Battery is defective. Replace the battery. Damaged or loose belt. Belt needs to be adjusted or changed.

Starter turns slow: Low battery voltage. Low battery charging, charge as required. Battery is draining quickly. Service battery or replace it. Bad battery terminals or disconnected wiring. Check cables and service or change terminals.

Starter is not cranking: Battery is low or faulty. Change or recharge battery. Battery cables are disconnected or improperly connected. Inspect cables and connect properly. Low battery output. Battery needs to be recharged. Starter motor failing. Starter should be changed.