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New Holland Workmaster 55 Troubleshooting

Workmaster 55 Engine Troubleshooting

Engine hard to start or will not start: Dirty fuel filter. Change filter element. Air in the fuel lines. Bleed the fuel lines. Clogged or burnt injection nozzle. Clean or change injection nozzles. Fuel injection pump failure. Rebuild or replace pump.

Engine stalls during operation: Incorrect adjustment of fuel injection pump timing. Set it up as required. Clogged fuel filter. Install new filter element. Low coolant temperature. Normalize the temperature by warming up the engine.

Engine starts but then stops: Dirty fuel filter. Install new filter element. Fuel injection pump is damaged. Replacement or repair required. Clogged air filter. Clean or replace element.

Engine overheated: Clogged radiator fins or leaking radiator cap. Clean radiator or replace cap. Lack of coolant in cooling system. Fill the cooling system and check components for leaks or other faults. Loose or defective fan belt. Install new fan belt. Lack of engine oil. Checking oil level and add if necessary.

Engine power is insufficient: Fuel injection nozzles are faulty or clogged. Clean or change injection nozzles. Dirty fuel hoses or lines. Service fuel hoses and lines. Clogged air cleaner. Air filter maintenance required. Blown cylinder head gasket. Replace cylinder head gasket.

Engine noise or knocking: Engine is not fully warmed up. Warm up to required temperature. Not enough engine oil. Check oil level and add oil as required. Incorrect adjustment of fuel injection pump timing. Adjust according to specifications. Scored or worn pistons. Replace the pistons. Faulty or misaligned connecting rod. Connecting rod must be aligned or replaced.

Engine stops while idle: Improperly adjusted low idle speed. Adjust as required. Improper valve clearance. Have it adjusted. Fuel injection pump damage. Repair or replace injection pump.

Oil pressure too low: Oil level is insufficient. Check oil level and add oil as required. Oil pump is damaged. Check and replace if necessary. Clogged oil filter element. Clean or change engine oil filter.

Workmaster 55 Transmission Troubleshooting

Transmission makes noise: Defective gears or improper backlash. Replace defective gears or set backlash properly. Damaged or worn gear shift forks. Change defective shift forks. Shaft splines are worn or stuck. Replace defective shaft. Transmission fluid insufficient. Checking transmission fluid level and add if necessary. Bearings are cracked or worn. Replace the bearings. Transmission oil contamination. Change the oil.

Hard to shift gears: Gear shift linkage is worn or rusty. Lubricate or replace the shift linkage. Worn or improperly adjusted clutch. Clutch needs to be replaced or adjusted. Shift forks are worn or bent. Replace the shift forks. Gear shifting mechanism is defective. Defective parts must be replaced.

Low transmission oil pressure: Transmission oil insufficient. Need to add transmission oil. Transmission fluid filter element clogging (if equipped). Service or replace the transmission fluid filter. Relief valve malfunction. Change the valve.

Transmission oil leaks: Damaged gaskets or seals. Gaskets or seal need to be replaced. Transmission fluid level is high. Correct the fluid level.

Workmaster 55 Hydraulic System Troubleshooting

Hydraulic system overheated: Incorrect hydraulic fluid type. Fill up with the proper type of fluid. Hydraulic fluid contamination. Change hydraulic fluid. There is air in the hydraulic system. Bleed hydraulic system. Main relief valve is damaged. Change relief valve.

Hydraulic oil pressure too low: Hydraulic oil level low. Fill the system to proper hydraulic oil level. Dirty hydraulic fluid filter element. Change the hydraulic filter element or service if required. Leaking hydraulic lines. Check the hydraulic system and fix leaks. Not adjusted hydraulic control valve. Need to adjust. Defective hydraulic pump. Change or repair hydraulic fluid pump. Hydraulic cylinder not working. Repair or replace hydraulic cylinder.

3-point hitch fails to lift or lifts slowly: Hydraulic pump is faulty. Install a new hydraulic fluid pump. Defective main relief valve. Relief valve replacement required. Hydraulic spool valve is damaged. Repair or change hydraulic valve. Broken hydraulic cylinder. Repair or change hydraulic cylinder. Insufficient hydraulic fluid. Fill up the hydraulic fluid. Hydraulic oil filter is clogged. Service the hydraulic filter or change if required. Excessive hitch loading. The load should be reduced.

Three-point hitch cannot be dropped or dropping is too slow: Defective hydraulic cylinder. Repair or replace hydraulic cylinder. Hydraulic control valve is set improperly. The control valve must be set correctly. Damaged hitch rock shaft. Change the shaft. Unadjusted hitch. Adjust three-point hitch as required.

Hitch lowering or lifting is jerky: Dirty hydraulic fluid. The fluid must be changed. Hydraulic pump malfunction. Change or repair hydraulic oil pump. Air in hydraulic lines. Bleed hydraulic lines. Hydraulic spool valve is damaged. Replace or repair the valve. Broken hydraulic cylinder. Replace or repair hydraulic cylinder.

Workmaster 55 Steering Troubleshooting

Excessive steering wheel play: Steering column coupling or shaft is worn. Change defective component. Faulty steering pump. Steering pump needs to be replaced or repaired. Steering linkage joints are worn or loose. Check and replace as required. Hydrostatic steering unit has wear or malfunction. Change or repair steering unit if required.

Steering wheel is difficult to turn: Air in steering hydraulic system. Bleed air from system. Steering filter clogging. Replace steering filter element. Steering oil level is low. Fill up steering oil to required level. Worn or defective hydrostatic steering unit. Inspect and replace as required. Worn steering pump. Install a new hydraulic steering pump. Pump flow control valve is stuck or damaged. Service or replace flow control valve. Incorrectly assembled or damaged steering column. Reassemble the steering column correctly or change it. Uneven wear on front tires. Replace the tires. Incorrect toe-in. Adjust toe-in properly. Steering cylinder leakage. Replace worn seal sleeves or damaged piston rod.

Tractor is pulling to left or right: Hydrostatic steering has wear or malfunction. Inspect and change as required. Steering cylinder is defective. Change or repair hydraulic steering cylinder. Not adjusted toe-in. Adjust toe-in properly. Steering linkage parts are loose or worn. Inspect and change as required. Damaged or improperly adjusted or worn front wheel bearings. Change or adjust the bearings properly. Front tires are worn unevenly. Install new tires.

Workmaster 55 Electrical Troubleshooting

Battery will not charge: Electrical wire connections are loose or corroded. Tighten or service connections. Battery terminal connectors are faulty. Change terminal connectors. Battery is worn. Replace the battery. Loose or worn belt. Belt needs to be adjusted or changed.

Starter cranks slowly: Low battery output. Battery is drained, charge it. Battery is not holding charge. Service charging system or replace battery. Bad terminals or disconnected battery cables. Check wire connections and change or service terminals.

Starter will not crank: Battery is discharged or defective. Recharge or change battery. Disconnected or incorrectly connected wires. Inspect battery wires and connect correctly. Battery voltage is low. Recharge the battery. Starter motor failing. Starter should be replaced.