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New Holland Boomer 40 Troubleshooting

Boomer 40 Engine Troubleshooting

Diesel hard to start or doesn't start: Clogged fuel filter. Replace the filter element. Air in fuel tank. Bleed fuel tank. Clogged or defective injection nozzles. Service or change injection nozzles. Damaged fuel injection pump. Change pump or rebuild it.

Engine shuts off while running: Fuel injection pump timing is not adjusted. Set it up as required. Clogged fuel filter. Replace the filter element. Engine is not warmed up to the required temperature. Normalize the temperature by warming up the engine.

Diesel starts but immediately shuts off: Fuel filter plugged. Filter maintenance required. Fuel injection pump damage. Change pump or rebuild it. Air filter is clogged. Change air filter element.

Engine overheats: Clogged radiator fins or damaged radiator cap. Change cap or clean radiator. Engine has a lack of coolant. Fill radiator to proper level and check components for faults. Fan belt is worn or faulty. Belt replacement is recommended. Engine oil level is low. Add oil to the engine crankcase.

Diesel engine is losing power: Clogged or burnt injection nozzle. If necessary, replace with a new nozzle. Fuel lines or hoses are dirty. Service fuel lines and hoses. Clogged air filter element. Replace air filter element. Cylinder head gasket is defective. Replace cylinder head gasket.

Engine noise or knocking: Engine not warmed up. Engine is not warmed up to the required temperature. Engine oil level low. Add oil to the engine crankcase. Fuel injection pump timing is not adjusted. Adjust as recommended. Worn or scored pistons. Replace the pistons. Connecting rod is worn or not aligned. Need to change or align the connecting rod.

Engine stops when idle: Improperly adjusted low idle speed. Adjust low idling as recommended. Valve clearance is wrong. Correct valve clearance. Defective fuel injection pump. Repair or install new pump.

Oil pressure too low: Engine oil level low. Check and refill the oil. Worn oil pump. Install a new pump. Clogged oil filter element. Service or replace engine oil filter.

Boomer 40 Transmission Troubleshooting

Transmission makes excessive noise: Damaged gears or incorrect backlash. Adjust backlash properly or replace the gears. Shift forks are worn or bent. Change the shift forks. Shaft splines are worn or stuck. Shaft need to be replaced. Transmission oil insufficient. Need to add transmission oil. Bearings are broken or worn. Replace the bearings. Transmission fluid is contaminated. Change the fluid.

Difficult to shift gears: Gear shift linkage is rusty or worn. Change or lubricate shift linkage. Clutch is out of adjustment or defective. Adjust or install new clutch. Shift forks are bent or worn out. Shift forks need to be replaced. Worn out parts of the gearshift mechanism. Replace worn parts.

Lack of transmission oil pressure: Low oil level. Fill the transmission housing with oil. Transmission oil filter is clogged (if fitted). Clean or replace the transmission filter. Defective relief valve. Install a new relief valve.

Transmission fluid leakage: Damaged seals or gaskets. Install new components. Too much fluid in transmission. Excess fluid must be drained.

Hydrostatic Transmission Troubleshooting

Excessive hydrostatic transmission noise: Defective or not adjusted speed control pedal linkage. Replace or adjust linkage. Transmission overload. The load should be reduced. Contaminated transmission fluid or low fluid level. Add fluid to the correct level or fill the transmission with fresh fluid. Relief valve is damaged. Change the valve. Worn or defective transmission components. After disassembling and inspection, change defective components.

Hot transmission oil: Transmission overload. The load should be reduced. Cooling components are defective or plugged. Inspect all cooling components and replace or clean if necessary. Transmission oil level is low. Need to add transmission oil. Dirty transmission fluid filter. Clean or change transmission fluid filter.

Low power: Insufficient transmission oil. Add oil to the transmission housing. Relief valve is stuck. Install a new valve. Defective or not adjusted speed control pedal linkage. Adjust or install new linkage.

External fluid leaks: Oil drain line is clogged. Clean or change the line. Seals or gaskets are worn. Install new seal or gaskets. Transmission case internal pressure is too high. Change defective parts.

Boomer 40 Hydraulic System Troubleshooting

Hydraulic system overheated: Wrong type of hydraulic fluid. Fill up with the correct type of hydraulic fluid. Hydraulic fluid is dirty. Hydraulic fluid change required. Air in hydraulic pipes. Bleed hydraulic pipes. Faulty main relief valve. Relief valve replacement required.

Hydraulic oil pressure too low: Hydraulic fluid is insufficient. Add fluid as required. Clogged hydraulic oil filter. Service the hydraulic filter or change if required. Leaks in hydraulic lines. Find leaks in the system and fix it. Hydraulic spool valve is out of adjustment. Spool valve adjustment required. Hydraulic pump is defective. Repair or replace hydraulic oil pump. Faulty hydraulic cylinder. Change or repair hydraulic cylinder.

Hitch not lifting or hitch lifts slowly: Hydraulic pump failure. Repair or replace hydraulic fluid pump. Main relief valve is faulty. Replace relief valve. Faulty hydraulic control valve. Install a new valve or repair it. Hydraulic cylinder failure. Install a new hydraulic cylinder or repair it. Hydraulic fluid is insufficient. Fill the system to proper hydraulic fluid level. Hydraulic fluid filter element is clogged. Clean the hydraulic filter element or replace if necessary. Excessive loading on the hitch. Load needs to be reduced.

3-point hitch does not lower or lowers very slowly: Faulty hydraulic cylinder. Replace or repair hydraulic cylinder. Not adjusted hydraulic control valve. Need to adjust. Worn hitch rock shaft. Change the shaft. Three-point hitch has not been adjusted. Adjustment is required.

Hitch drop or lift is jerky: Hydraulic oil contamination. Change the oil. Faulty hydraulic pump. Install a new hydraulic oil pump. Air in the hydraulic system. Air bleeding. Defective hydraulic control valve. Repair or change the valve. Damaged hydraulic cylinder. Replace or repair hydraulic cylinder.

Boomer 40 Steering System Troubleshooting

Excessive steering wheel free play: Steering column coupling or shaft is worn. Replace faulty part. Steering pump failure. Replace or repair steering pump. Worn or loose steering linkage joints. Change or repair steering linkage. Steering control valve has wear or malfunction. Repair or replace the steering control valve.

Steering wheel is very heavy to turn: Air trapped inside steering system. Need to bleed air. Steering filter is clogged. Replace steering filter element. Steering fluid insufficient. Check and refill steering fluid. Steering control valve has wear or malfunction. Change or repair steering control valve if required. Defective hydraulic steering pump. Replace or repair steering pump. Steering pump control valve is worn or stuck. Install a new flow control valve or clean it. Worn or incorrectly fitted steering column. Replace the steering column or refit it correctly. Uneven wear on front tires. Replace the tires. Not adjusted toe-in. Adjust toe-in properly. Steering cylinder leaks. Replace scratched piston rod or worn cylinder seals.

Front wheels wander to left or right: Steering control valve has malfunction or wear. Inspect and replace as required. Damaged steering cylinder. Repair or replace steering cylinder. Not adjusted toe-in. Adjust toe-in wheels. Steering linkage assembly is worn or loose. Inspect and change as required. Worn or incorrectly adjusted or worn front wheel bearings. Install new bearings or adjust it correctly. Tire pressure uneven. Inflate the tires correctly.

Boomer 40 Electrical System Troubleshooting

Battery is not charging: Loose or corroded cable connections. Tighten or clean electrical wiring connections. Faulty battery terminal clamps. Install new terminal clamps. Battery failing. Battery replacement required. Belt is damaged or loose. Adjust belt tension or replace belt.

Starter turns slow: Low battery output voltage. Recharge the battery. Battery runs out quickly. Service battery or replace it. Battery cables are disconnected or terminals are faulty. Connect wires properly or change terminals.

Starter is not working: Battery is discharged or defective. Charge or change the battery. Battery wires are disconnected or incorrectly connected. Check wires and connect correctly. Low battery voltage. Battery is drained, charge it. Defective starter motor. Repair or change starter.