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New Holland Workmaster 37 Troubleshooting

Workmaster 37 Engine Troubleshooting

Engine starts hard or doesn't start: Fuel filter plugging. Change the filter element. Air in fuel system. Bleed fuel system. Faulty or dirty injection nozzles. Service or change injection nozzles. Fuel injection pump is faulty. Replace injection pump or repair it.

Engine stalls during operation: Wrong setting of fuel injection pump timing. Set up as recommended. Fuel filter element clogging. Change filter element. Engine is not warmed up to the required temperature. Warm up the engine.

Engine starts but then stops: Fuel filter plugging. Change filter element. Fuel injection pump is not working correctly. Change or repair the pump. Dirty air filter element. Replace air filter element.

Engine is overheated: Defective radiator cap or clogged radiator core. Install new cap or clean radiator. Lack of coolant in cooling system. Add coolant fluid and inspect the cooling system for leaks. Excessive wear of the fan belt. Fan belt must be replaced. Engine oil level is low. Checking oil level and add if necessary.

Diesel power loss: Defective or clogged injection nozzle. Replace injection nozzles. Restricted fuel hoses or lines. Fuel lines and hoses need to be cleaned. Dirty air cleaner. Carry out maintenance on air filter. Defective cylinder head gasket. Cylinder-head gasket replacement required.

Abnormal engine knocking or noise: Engine is not preheated. Warm up engine as required. Engine oil level is low. Checking oil level and add if necessary. Wrong setting of fuel injection pump timing. Adjust fuel injection pump as required. Worn or broken pistons. Have pistons replaced. Connecting rod is worn or not aligned. Connecting rod must be aligned or replaced.

Engine stalling at idle: Incorrectly set low idle speed. Adjust low idling as recommended. Valve clearance is not correct. Correct valve clearance. Fuel injection pump is damaged. Change or repair the pump.

Low oil pressure: Low oil level. Checking oil level and add if necessary. Oil pump is defective. Replace as required. Oil filter clogged. Replace or service engine oil filter.

Workmaster 37 Transmission Troubleshooting

Transmission noises: Gears are damaged or backlash is incorrect. Install new gears and set backlash correctly. Shift forks are worn or bent. Shift forks need to be changed. Stuck or worn shaft splines. Change defective shaft. Low oil level. Check transmission oil level and add oil as required. Bearings are cracked or worn. Bearings need to be replaced. Transmission fluid contamination. Change the fluid.

Gear hard to shift: Gear shift linkage is rusty or worn. Lubricate or replace shift linkage. Worn or improperly adjusted clutch. Clutch needs to be replaced or adjusted. Worn or damaged gear shift forks. Change defective shift forks. Worn parts of the gear shifting mechanism. Change worn parts.

Insufficient transmission oil pressure: Insufficient transmission oil. Need to add transmission oil. Dirty transmission oil filter element (if equipped). Clean or replace the transmission filter. Relief valve malfunction. Install a new valve.

Transmission oil leakage: Damaged seals or gaskets. Gaskets or seal replacement required. Too much fluid in transmission. Excess fluid must be drained.

Hydrostatic Transmission Troubleshooting

HST transmission noises: Defective or not adjusted speed control pedal linkage. Adjust or change linkage. Transmission overloaded. Reduce transmission load. Oil is dirty or oil level is too low. Add oil to proper level or pour fresh transmission oil. Relief valve is damaged. Change relief valve. Defective or worn transmission parts. After disassembling and inspection, change defective components.

Hot transmission oil: Excessive loading. Load needs to be reduced. Cooling components are plugged or defective. Inspect all cooling components and replace or clean if necessary. Lack of transmission fluid. Add fluid to the transmission housing. Plugged transmission oil filter. Service or replace the transmission oil filter.

Power is too low: Insufficient transmission oil. Add oil to the transmission housing. Defective relief valve. Install a new relief valve. Defective or not adjusted speed control pedal linkage. Adjust or repair linkage.

External fluid leaks: Plugged transmission fluid return tube. Service or replace return tube. Damaged seals or gaskets. Install new components. High internal transmission case pressure. Check transmission parts for damage or wear and replace if required.

Workmaster 37 Hydraulics Troubleshooting

Hydraulic system overheats: Hydraulic oil type is wrong. Correct type of oil must be used. Hydraulic oil is dirty. Hydraulic oil change required. Air trapped in hydraulic system. Bleed air from system. Main relief valve failure. Install a new relief valve.

Hydraulic oil pressure is insufficient: Insufficient hydraulic oil. Fill the system to proper hydraulic oil level. Dirty hydraulic oil filter element. Service the hydraulic filter or change if required. Leaking hydraulic lines. Inspect the system for leaks and fix it. Hydraulic spool valve is out of adjustment. Spool valve adjustment required. Damaged hydraulic pump. Install a new hydraulic oil pump. Faulty hydraulic cylinder. Change or repair hydraulic cylinder.

3-point hitch can't lift or lifts too slowly: Damaged hydraulic pump. Install a new hydraulic oil pump. Faulty main relief valve. Install a new relief valve. Hydraulic spool valve is damaged. Change or repair hydraulic valve. Hydraulic cylinder is faulty. Replace or repair hydraulic cylinder. Low hydraulic oil level. Need to add oil. Clogged hydraulic fluid filter element. Install a new hydraulic filter element. Heavy load on the hitch. Load needs to be reduced.

Hitch cannot be dropped or dropping is too slow: Damaged hydraulic cylinder. Replace or repair hydraulic cylinder. Incorrect setting hydraulic control valve block. Set correctly. Lift arm shaft is damaged. Replace the shaft. The three-point hitch is not adjusted. Adjustment is required.

Jerky lifting or lowering of three-point hitch: Hydraulic fluid is dirty. Hydraulic fluid change required. Faulty hydraulic pump. Replace or repair hydraulic oil pump. Air in hydraulic lines. Bleed hydraulic lines. Faulty hydraulic spool valve. Repair or replace the valve. Hydraulic cylinder failure. Replace or repair hydraulic cylinder.

Workmaster 37 Steering Troubleshooting

Steering wheel has too much free-play: Worn steering column shaft or coupling. Replace defective component. Steering pump failure. Repair or replace steering pump. Loose or worn steering linkage components. Check and change as required. Worn or defective steering control unit. Replace or repair steering control unit as required.

Stiff steering: Air lock in hydraulic steering system. Bleed the steering system. Dirty steering filter. Replace steering filter element. Steering oil insufficient. Check and refill steering oil. Steering control unit has malfunction or wear. Check and replace as required. Worn steering pump. Install a new steering pump. Steering pump control valve is faulty or stuck. Flush or change flow control valve. Incorrectly assembled or damaged steering column. Reassemble the steering column correctly or change it. Uneven tire pressure. Inflate the tires properly. Improper toe-in. Check and adjust toe-in. Leaking steering cylinder. Change worn piston rod or damaged cylinder seals.

Tractor pulls to left or right: Steering control unit has damage or wear. Repair or change the steering control unit. Damaged steering cylinder. Change or repair hydraulic steering cylinder. Improper toe-in. Check toe-in and correct. Worn or loose steering linkage assembly. Repair or change steering linkage. Improperly adjusted or defective front wheel bearings. Install new bearings or adjust it correctly. Uneven wear on front tyres. Replace the tyres.

Workmaster 37 Electrical System Troubleshooting

Battery won’t charge: Electrical cable connections are corroded or loose. Service or tighten connections. Battery terminal clamps are faulty. Install new terminal clamps. Battery faulty cell. Use a new battery. Belt is worn or loose. Adjust belt tension or replace belt.

Starter cranks slowly: Low battery output. Low battery charging, charge as required. Battery is draining quickly. Battery needs to be serviced or replaced. Disconnected wires or corroded battery terminals. Connect wiring properly or install new terminals.

Starter does not work: Battery is low or faulty. Replace or charge as required. Battery cables are disconnected or improperly connected. Inspect cables and connect properly. Low battery output voltage. Charge the battery. Starter motor failing. Starter needs to be replaced.