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Home / Wheel Loaders / John Deere Wheel Loaders / John Deere 244L

John Deere 244L Troubleshooting

The John Deere 244L compact wheel loader is powered by 202.5 cu.in (3.6L) Yanmar 4TNV98CT 4-cylinder turbocharged intercooled diesel engine with a rated power of 71 hp (52.6 kW) at 2500 rpm. The John Deere 244L is equipped with a 2-range hydrostatic transmission, power steering system, hydraulic wet disc brakes, and 365/70R18 standard tires. The open center hydraulic system has a pump with fluid flow rate of 18.5 gpm (70 lpm). The wheel loader has a rated operating capacity of 3945 lbs (1790 kg) and tipping load of 7890 lbs (3580 kg). The max lift height is 126.8 inches (3220 mm) to hinge pin, and boom breakout force is 9720 lbs (4410 kg).

Engine Troubleshooting

Engine starts hard or won't start
Air in fuel tank - Bleed fuel tank.
Fuel filter element clogging - Clean the filter or install new filter element.
Clogged or burnt injection nozzle - Service or change injection nozzles.
Dirt or water in fuel system - Drain water or flush dirt from the system.
Excessive valve clearance - Check and adjust as required.
Fuel injection pump is not working correctly - Install a new fuel pump or repair.

Engine starts and stops suddenly
Dirty air filter - Clean or change filter.
Fuel filter element clogging - Replace the filter element.
Poor fuel injection pump tightness - Look for any leaks of fuel pump, tighten it fast.
Defective or clogged fuel injectors - Replace fuel injectors.
Fuel injection pump is faulty - Replace injection pump or repair it.

Engine shuts off while running
Engine is not fully warmed up - Normalize the temperature by warming up the engine.
Fuel filter element is dirty - Clean the filter or install new filter element.
Air in the fuel lines - Bleed the fuel lines.
Fuel injection nozzles are faulty or clogged - Test injection nozzles and change if necessary.
Incorrect adjustment of fuel injection pump timing - Adjust the pump as required.

Engine shuts off while idling
Improperly adjusted low idle speed - Correct low idle settings.
Fuel injection pump is faulty - Install a new fuel pump or repair.
Fuel injectors are faulty or clogged - Change or clean fuel injectors.
Incorrect valve clearance - Have it adjusted.

Diesel power loss
Air cleaner is dirty - Clean or change.
Defective or clogged injection nozzle - Check and replace nozzles if required.
Insufficient fuel injection pressure - Adjust pressure to proper level.
Valve out of adjustment - Adjust valve clearance according to specifications.
Improperly adjusted low idle speed - Adjust as required.
Fuel hoses or lines are dirty - Fuel lines and hoses need to be cleaned.
Worn cylinder head gasket - Replace cylinder head gasket.
Piston rings are worn or damaged - Change piston rings.

Engine overheating
Low coolant level - Refill to the correct level and inspect system for leaks.
Engine oil level is low - Need to add engine oil.
Clogged radiator core or damaged radiator cap - Clean radiator or change cap.
Loose or defective fan belt - Change as required.
Engine overloaded - Load reducing required.

Low oil pressure
Engine oil insufficient - Fill crankcase to proper oil level.
Oil filter is dirty - Service or change engine oil filter element.
Wrong oil viscosity - Use oil of correct viscosity.
Crankshaft bearing has incorrect oil clearance - Bearing needs to be changed.
Oil pump is damaged - Repair or change.

Engine knocks or noises
Engine oil level low - Add oil to the engine crankcase.
Engine is not fully warmed up - Warm up the engine.
Timing of fuel injection pump is incorrect - Set up as recommended.
Incorrect low idle setting - Correct the settings.
Fuel injector fault - Replace or clean fuel injectors.
Misaligned or defective connecting rod - Connecting rod needs to be replaced or aligned.
Worn or scored pistons - Pistons need to be replaced.

Hydrostatic Transmission Troubleshooting

Hydrostatic transmission is excessively noisy
Insufficient oil level or contaminated oil - Add oil to proper level or pour fresh transmission oil.
Worn or out of adjustment speed control linkage - Adjust or change linkage.
Relief valve is stuck - Replace relief valve as required.
Excessive transmission load - Reduce transmission load.
Worn or defective transmission components - After disassembling and inspection, change defective components.

Lack of power
Transmission oil insufficient - Fill the transmission housing to proper oil level.
Relief valve malfunction - Change the valve.
Worn or unadjusted speed control linkage - Adjust or repair linkage.

Transmission oil over heats
Low fluid level - Add fluid to the transmission housing.
Dirty transmission fluid filter - Service or change transmission fluid filter.
Plugged or defective cooling components - Inspect all cooling components and replace or clean if necessary.
Transmission overload - Reduce transmission load.

Transmission oil leaks
Damaged seals or gaskets - Install new gaskets or seal.
Internal transmission housing pressure is too high - Change defective components.
Clogged oil drain line - Clean or replace drain line.

Hydraulics Troubleshooting

Hydraulic system overheating
Hydraulic pressure incorrectly adjusted - Hydraulic pressure must be set correctly.
Unadjusted or defective main relief valve - Adjust the valve or replace if necessary.
Hydraulic oil is dirty - The oil must be changed.
Not enough hydraulic fluid in the system - Fill the hydraulic system with oil.
Defective hydraulic pump - Change or repair hydraulic pump if required.

Boom cannot be lowered or raised
Damaged lift controls - Replace or repair.
Damaged hydraulic oil pump - Repair or change pump if required.
Damaged hydraulic control valve - Replace or repair the valve.
Hydraulic cylinder not working - Repair or change hydraulic cylinder.
Insufficient hydraulic fluid - Add fluid as required.

Bucket can't tilt
Bucket tilt controls are defective - Inspect and repair if necessary.
Defective hydraulic pump - Repair or install new hydraulic pump.
Hydraulic control valve is defective - Install a new hydraulic valve or repair it.
Defective bucket cylinder - Repair or replace cylinder.
Low hydraulic oil level - Need to add oil.

Bucket or lift arm runs slowly
Hydraulic pump is defective - Test pump performance and replace pump if necessary.
Hydraulic cylinder leaking - Replace cylinder piston seals.
Hydraulic fluid level low - Fill the system to proper hydraulic fluid level.
Hydraulic control valve is not set properly or defective - Repair or set correctly.
Hydraulic system loosing pressure - Correct adjustment is required.

Lift arm or bucket is moving jerkily
Air leaks in hydraulic system - Bleed hydraulic system.
Dirty hydraulic oil filter - Service or replace the hydraulic filter.
Hydraulic fluid is contaminated - Change hydraulic fluid.
Scratched cylinder rod or tube - Replace damaged component.

Hydraulic pump is excessively noisy
Not enough oil or hydraulic system leaking - Remedy hydraulic leakage or refill oil as necessary.
Hydraulic filter clogging - Clean or install new filter.
Plugged suction line - Clean suction line as required.
Air enters the pump - Air bleeding is required.
Pump parts are worn out - Rebuild or change hydraulic pump.

Electrical Troubleshooting

Battery will not charge
Loose or corroded wire connections - Clean or tighten connections.
Faulty electrical terminal connectors - Change terminal connectors.
Battery failing - Install a new battery.
Belt is loose or defective - Replace belt or adjust belt tension.

Starter turns slow
Low battery voltage - Battery needs to be recharged.
Battery drains quickly - Service or replace the battery.
Disconnected wires or corroded battery terminals - Check wire connections and change or service terminals.

Starter will not work
Battery is drained or defective - Charge or change the battery.
Battery cables are disconnected or improperly connected - Inspect cables and connect properly.
Low battery output voltage - Battery needs to be recharged.
Defective starter motor - Starter needs to be changed.

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WHEEL LOADERS SPECIFICATIONS

Wheel Loaders, Skid Steers, and Compact Track Loaders