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New Holland Boomer 25 Troubleshooting

Boomer 25 Diesel Engine Troubleshooting

Engine difficult to start or will not start: Fuel filter plugging. Filter maintenance required. Air in fuel tank. Bleed fuel tank. Fuel injection nozzles are clogged or faulty. Install a new kit of correctly balanced nozzles. Fuel injection pump malfunction. Repair or install a new fuel pump.

Diesel shuts off while driving: Fuel injection pump timing is not adjusted. Set up as recommended. Fuel filter plugged. Replace filter element. Engine not warmed up. Warm up to required temperature.

Engine stalls after starting: Fuel filter plugged. Change filter element. Damaged fuel injection pump. Replace or rebuild injection pump. Air filter is dirty. Clean or replace the element.

Engine overheats: Radiator fins are clogged or radiator cap is faulty. Clean radiator or replace cap. Coolant level is low. Fill radiator to proper level and check components for faults. Broken or loose fan belt. Change as required. Not enough engine oil. Check and refill engine oil.

Diesel power loss: Fuel injection nozzles are clogged or faulty. Inspect nozzles and replace if necessary. Clogged fuel hoses or lines. Clean fuel system hoses and lines. Dirty air cleaner. Change air filter element. Cylinder head gasket is blown. Replace cylinder head gasket.

Abnormal engine noise or knocking: Engine is not preheated. Normalize the temperature by warming up the engine. Not enough engine oil. Need to add engine oil. Fuel injection pump timing is not adjusted. Adjust the pump as required. Worn or broken pistons. Pistons need to be replaced. Misaligned or defective connecting rod. Need to change or align the connecting rod.

Engine stops while idle: Incorrect low idle setting. Need to adjust idle speed. Valve out of adjustment. Check and adjust. Damaged fuel injection pump. Repair or change injection pump.

Low oil pressure: Insufficient engine oil. Fill crankcase to proper oil level. Oil pump is defective. Install a new pump. Clogged oil filter. Change or clean engine oil filter element.

Boomer 25 Hydrostatic Transmission Troubleshooting

Excessive HST transmission noise: Defective or not adjusted speed control pedal linkage. Adjust or replace linkage. Transmission overload. Load needs to be reduced. Low transmission oil level or contaminated oil. Fill to required level or change the transmission oil. Relief valve is damaged. Change relief valve. Worn or defective transmission components. Replace or repair defective components.

Transmission fluid overheats: Excessive transmission load. Load needs to be reduced. Cooling components are damaged or clogged. Check all cooling components and clean or replace if required. Transmission oil level is low. Fill up the transmission oil. Plugged transmission oil filter. Service or change transmission oil filter.

Lack of power: Insufficient transmission fluid. Checking transmission fluid level and add if necessary. Relief valve failure. Replace relief valve. Worn or unadjusted speed control linkage. Change or adjust linkage.

External fluid leaks: Clogged transmission fluid return tube. Clean or replace return tube. Seals or gaskets are broken. Replace worn gaskets or seal. High internal transmission housing pressure. Change defective components.

Boomer 25 Hydraulics Troubleshooting

Hydraulic system is overheated: Improper type of hydraulic oil. Use the proper type of oil. Contaminated hydraulic oil. Change hydraulic oil. Air in hydraulic pipes. Bleed hydraulic pipes. Defective main relief valve. Replace relief valve.

Low hydraulic oil pressure: Insufficient hydraulic fluid. Checking hydraulic fluid level and add if necessary. Clogged hydraulic oil filter element. Replace filter element or clean if required. Leaking hydraulic lines. Check the system and repair leaks. Not adjusted hydraulic control valve. Need to adjust. Faulty hydraulic pump. Install a new hydraulic oil pump. Hydraulic cylinder is faulty. Repair or replace hydraulic cylinder.

Hitch not raising or hitch raises slowly: Hydraulic pump is defective. Replace or repair hydraulic fluid pump. Main relief valve is damaged. Relief valve must be changed. Damaged hydraulic control valve. Repair or replace the valve. Damaged hydraulic cylinder. Repair or replace hydraulic cylinder. Insufficient hydraulic oil. Fill the system to proper hydraulic oil level. Dirty hydraulic fluid filter. Replace hydraulic filter element or service if necessary. Heavy load on the hitch. Reduce hitch load.

Hitch fails to drop or drops slowly: Faulty hydraulic cylinder. Repair or install a new hydraulic cylinder. Incorrect adjusted hydraulic control valve. Adjust correctly. Damaged lift arm shaft. Replace the shaft. Three-point hitch has not been adjusted. Adjustment is required.

Hitch lift or drop is not smoothly: Dirty hydraulic fluid. The fluid must be changed. Damaged hydraulic pump. Install a new hydraulic oil pump. Air trapped in hydraulic system. Bleed air from system. Defective hydraulic spool valve block. Replace or repair the valve. Faulty hydraulic cylinder. Repair or install a new hydraulic cylinder.

Boomer 25 Steering Troubleshooting

Excessive steering wheel free play: Steering column coupling or shaft is worn. Change defective component. Worn steering pump. Install a new hydraulic steering pump. Loose or worn steering linkage components. Change or repair steering linkage. Hydrostatic steering unit is defective or worn. Change or repair steering unit if required.

Steering wheel is very heavy to turn: Air in steering hydraulic system. Need to bleed air. Clogged steering filter. Steering filter maintenance required. Steering oil level low. Add oil to steering system. Hydrostatic steering unit has damage or wear. Inspect and replace as required. Steering pump is faulty. Install a new hydraulic steering pump. Stuck or faulty steering pump control valve. Clean or replace control valve. Improperly mounted or worn steering column. Mount the steering column as required or change it. Tyre pressure is uneven. Adjust the tyre pressure. Improper toe-in. Adjust toe-in properly. Leaking steering cylinder. Damaged cylinder seals or worn piston rod.

Tractor pulls to right or left: Hydrostatic steering unit has wear or malfunction. Check and replace as required. Steering cylinder is worn. Repair or replace hydraulic steering cylinder. Incorrect toe-in. Adjust toe-in properly. Worn or loose steering linkage assembly. Repair or replace steering linkage. Front wheel bearings are defective or improperly adjusted. Adjust properly or change bearings. Uneven wear on front tyres. Replace the tyres.

Boomer 25 Electrical Troubleshooting

Battery will not charge: Loose or corroded wire connections. Tighten or clean connections. Faulty battery terminal connectors. Change terminal connectors. Battery is defective. Battery replacement required. Damaged or loose belt. Replace belt or adjust belt tension.

Starter turns slowly: Battery capacity is low. Battery is drained, recharge it. Battery is draining quickly. Service or replace the battery. Disconnected cables or faulty battery terminals. Check cable connections and replace or service terminals.

Starter will not work: Battery is discharged or defective. Battery needs to be recharged or replaced. Battery cables are disconnected or incorrectly connected. Check cables and connect as needed. Low battery output voltage. Recharge the battery. Defective starter motor. Repair or install a new starter.