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New Holland LX465 Troubleshooting

The New Holland LX465 skid steer loader is powered by 91.3 cu.in (1.5L) Shibaura N843 3-cylinder indirect injection water-cooled diesel engine with a rated power of 30 hp (22.2 kW) at 2900 rpm. The New Holland LX465 is equipped with a radial-lift loader boom, single-speed hydrostatic transmission, ASA 80 drive chains, and 10x16.5 standard tires. The hydraulic system has a pump with fluid flow rate of 10.6 gpm (40.1 lpm). The hydraulic pressure is 2600 psi (176 bar). The skid steer loader has a rated operating capacity of 1250 lbs (570 kg) and tipping load of 2500 lbs (1140 kg). The lift height is 111" (2825 mm) to hinge pin, and dump height is 87.9" (2230 mm).

Engine Troubleshooting

Engine difficult to start or won't start
Air in the fuel system - Air bleeding.
Clogged fuel filter - Change filter element.
Defective or clogged injection nozzle - Inspect nozzles and replace if necessary.
Water or dirt in fuel system - Drain, flush, and service the system.
Incorrect valve clearance - Adjust valve clearance.
Defective fuel injection pump - Replace or repair injection pump.

Engine starts and then shuts off
Air cleaner is clogged - Clean or change.
Fuel filter plugged - Install new filter element.
Fuel injection pump leakage - Check the fuel injection pump for leaks and fix it.
Fuel injectors are dirty or defective - Test and replace fuel injectors if necessary.
Fuel injection pump malfunctioning - Replace injection pump or repair it.

Engine shuts off suddenly during operation
Low coolant temperature - Warm up engine as required.
Fuel filter element is clogged - Service or replace the filter.
Air in fuel system - Bleed fuel system.
Fuel injection nozzles fault - Service or change injection nozzles.
Timing of fuel injection pump is incorrect - Check the fuel injection pump timing adjustment.

Engine stalls when idling
Low idle speed set incorrectly - Adjustment required.
Fuel injection pump is not working correctly - Repair or install a new fuel pump.
Clogged or defective injectors - Test and replace fuel injectors if necessary.
Improper valve clearance - Adjustment procedure required.

Diesel engine is losing power
Air cleaner is clogged - Clean or replace air cleaner element.
Fuel injection nozzles are damaged or dirty - Check injection nozzles and replace if required.
Uneven fuel injection pressure - Correct the pressure settings.
Incorrect valve clearance - Adjustment procedure required.
Wrong adjustment of low idle speed - Adjust low idling as recommended.
Restricted fuel lines or hoses - Fuel lines and hoses need to be cleaned.
Cylinder head gasket is defective - Cylinder-head gasket replacement required.
Piston rings are broken or leaking - Install new piston rings.

Engine overheated
Lack of engine coolant - Add coolant and check the components of cooling system.
Low engine oil level - Fill the crankcase with engine oil.
Damaged radiator cap or dirty radiator core - Clean radiator or change cap.
Fan belt is worn or faulty - If necessary, replace the belt.
Diesel engine overloaded - Load reducing is recommended.

Insufficient oil pressure
Engine oil insufficient - Need to add oil.
Oil filter element is dirty - Clean or change engine oil filter.
Different type of engine oil - Use correct viscosity oil.
Incorrect oil clearance in crankshaft bearing - Bearing needs to be changed.
Oil pump failure - Replace as required.

Engine knocks or noises
Engine oil level low - Check oil level and add oil as required.
Low coolant temperature - Normalize the temperature by warming up the engine.
Timing of fuel injection pump is incorrect - Set the fuel pump timing correctly.
Incorrectly set low idle speed - Adjust low idling as recommended.
Clogged or defective injectors - Test and replace fuel injectors if necessary.
Connecting rod is misaligned or worn - Align or change connecting rod.
Pistons are worn or scored - Pistons replacement required.

Drive System Troubleshooting

Machine does not move forward or backward
Insufficient hydraulic oil - Fill the system to proper hydraulic oil level.
Drive chain malfunction - Check drive chain and change faulty components.
Stuck relief valve - Rebuild or install a new relief valve.
Suction line or hydraulic filter is dirty - Change hydraulic filter or service suction line.
Faulty hand or foot controls - Change or repair.
Drive pump or motor malfunction - Inspect and change as required.

Lack of power
Hydraulic oil filter is clogged - Check, clean, or change as necessary.
Relief valve is opened or defective - Replace or close relief valve.
Worn or defective transmission parts - Check and replace faulty components.
Input drive shaft failure - Replace drive shaft.
Air in hydraulic system - Bleed hydraulic system.

Overheated drive system
Insufficient hydraulic oil - Fill the system to proper hydraulic oil level.
Dirty hydraulic fluid filter - Check, clean, or change as necessary.
Stuck relief valve - Service or change relief valve.
Damaged drive pump or hydraulic motor - Inspect and change as required.
Clogged hydraulic oil cooler - Cooling fins need to be cleaned.
Drive system overloaded continuously - Reduce drive system load.

Excessive noise
Wrong oil viscosity - Use oil of correct viscosity.
Air in the hydraulic system - Air bleeding is required.
Defective drive pump or hydraulic motor - Change or repair faulty component.
Mechanical parts of drive system are damaged or worn - Check drive system and change faulty parts.

Hydraulics Troubleshooting

Hydraulic system overheated
Hydraulic pressure is not correct - Correct adjustment is required.
Main relief valve failure or improper setting - Adjust or replace the relief valve.
Hydraulic fluid is contaminated - The fluid must be changed.
Lack of hydraulic fluid - Add fluid to the hydraulic system.
Hydraulic pump is defective - Repair or change pump if required.

Lift arm won't raise or lower
Lift controls malfunction - Replace or repair.
Damaged hydraulic oil pump - Repair or install new hydraulic pump.
Faulty hydraulic control valve - Install a new hydraulic valve or repair it.
Hydraulic cylinder is defective - Repair or install a new lift cylinder.
Low hydraulic fluid level - Fill the system to proper hydraulic fluid level.

Bucket fails to tilt
Damaged bucket controls - Repair or change.
Defective hydraulic pump - Change or repair hydraulic pump if required.
Hydraulic control valve failure - Repair or replace hydraulic valve.
Bucket cylinder failure - Repair or change cylinder.
Low hydraulic oil level - Fill the system to proper hydraulic oil level.

Bucket or lift arm runs slowly
Hydraulic pump is defective - Check hydraulic pump flow and replace pump if necessary.
Leaking hydraulic cylinder - Repair leak by replacing the seals.
Low hydraulic oil level - Check and refill the hydraulic oil.
Hydraulic control valve is faulty or out of adjustment - Repair or adjust properly.
Hydraulic system loosing pressure - Correct adjustment is required.

Bucket or boom is working jerkily
Hydraulic system is leaking air - Need to bleed air.
Hydraulic oil filter element is clogged - Service or change the hydraulic filter.
Hydraulic oil is contaminated - Hydraulic oil change required.
Scored cylinder tube or rod - Replace defective component.

Hydraulic pump makes excessive noise
Hydraulic leaks or low oil level - Remedy hydraulic leakage or refill oil as necessary.
Plugged hydraulic filter - Clean or install new filter.
Plugged suction line - Suction line must be serviced.
Air trapped in hydraulic pump - Remove air from hydraulics.
Pump components are worn out - Rebuild or replace hydraulic pump.

Electrical Troubleshooting

Battery will not charge
Corroded or loose wire connections - Tighten or clean electrical wiring connections.
Battery terminal clamps are defective - Replace terminal clamps.
Defective battery - Replace the battery.
Loose or damaged belt - Adjust belt tension or change the belt.

Starter motor turns slow
Low battery output - Charge the battery.
Battery drains quickly - Service charging system or replace battery.
Bad terminals or disconnected battery cables - Connect wiring properly or install new terminals.

Starter will not crank
Battery is discharged or defective - Need to charge or replace the battery.
Battery cables are disconnected or improperly connected - Inspect cables and connect properly.
Low battery voltage - Battery is drained, recharge it.
Starter motor failing - Starter should be changed.