John Deere 333D Track Loader Troubleshooting

The John Deere 333D compact track loader driveline system components: a 186 cu.in (3L) JD PowerTech E 5030HT five-cylinder turbocharged diesel engine with a rated power of 89 hp (66.7 kW), and 2-speed hydrostatic transmission. The hydraulic system has a pump with a rated flow of 25 gpm (94 lpm). The system pressure is 3450 psi (238 bar). The John Deere 333D is equipped with vertical-lift loader boom, integral wet-disc brakes, and rubber tracks with steel inserts. The loader has a boom lift force of 6600 lbs (2995 kg) and bucket breakout force of 13875 lbs (6300 kg). The rated operating capacity is 3300 lbs (1500 kg), and tipping load is 9450 lbs (4290 kg).

Engine Troubleshooting

Engine starts hard or won't start

There is air in the fuel system - Bleed the system.
Fuel filter element is dirty - Replace filter element.
Clogged or burnt injection nozzle - Change fuel injection nozzles.
Water in the fuel system - Change fuel and repair fuel system.
Valve clearance is not correct - Correct valve clearance.
Fuel injection pump is not working correctly - Replace or rebuild injection pump.

Diesel starts but stalls immediately

Air filter is plugged - Install new air filter element.
Clogged fuel filter - Replace the filter element.
Fuel injection pump leakage - Check the fuel injection pump for leaks and fix it.
Damaged or clogged injectors - Replace or clean fuel injectors.
Fuel injection pump damage - Install a new fuel pump or repair.

Engine stalls during operation

Engine has not warmed up to recommended temperature - Normalize the temperature by warming up the engine.
Fuel filter element is dirty - Service or replace the filter.
Air in the fuel system - Air bleeding.
Fuel injection nozzles fault - Clean or change injection nozzles.
Wrong setting of fuel injection pump timing - Adjust according to specifications.

Engine shuts off while idling

Wrong adjustment of low idle speed - Correct low idle settings.
Fuel injection pump is defective - Replacement or repair required.
Clogged or defective injectors - Clean fuel injectors or change it.
Valve out of adjustment - Have it adjusted.

Diesel power loss

Air cleaner is clogged - Clean or replace element.
Faulty fuel injection nozzles - Test injection nozzles and change if necessary.
Incorrect fuel injection pressure - Check the fuel injection pressure and adjust if necessary.
Incorrect valve clearance - Adjust to proper valve clearance.
Incorrect low idle setting - Correct low idle settings.
Restricted fuel lines or hoses - Clean fuel system hoses and lines.
Damaged cylinder-head gasket - Replace the gasket as required.
Piston rings are damaged or leaking - Piston rings need to be replaced.

Engine overheated

Low coolant level - Fill radiator to proper level and check components for faults.
Insufficient engine oil - Check and refill engine oil.
Dirty radiator core or faulty radiator cap - Replace cap or clean radiator.
Fan belt slipping or worn - Change as required.
Diesel engine is overloaded - Load reducing required.

Oil pressure too low

Oil level is insufficient - Need to add oil.
Oil filter element clogged - Clean or replace engine oil filter element.
Wrong oil viscosity - Use oil of correct viscosity.
Crankshaft bearing oil clearance is incorrect - Bearing replacement required.
Worn oil pump - Replace as required.

Engine knocking sound or abnormal noise

Insufficient engine oil - Check oil level and add oil as required.
Low coolant temperature - Warm up engine as required.
Incorrect adjustment of fuel injection pump timing - Adjust as recommended.
Low idle speed setting is incorrect - Correct the settings.
Fuel injectors are faulty or clogged - Replace or clean fuel injectors.
Connecting rod is defective or not aligned - Need to replace or align the connecting rod.
Pistons are broken or worn - Replace the pistons.

Drive System Troubleshooting

Machine is not moving in one direction or either direction

Hydraulic fluid level low - Fill up the hydraulic fluid.
Undercarriage tracks are blocked or damaged - Repair or correct blockage.
Faulty relief valve - Change or repair defective relief valve.
Clogged hydraulic filter or suction line - Check, clean, or change if necessary.
Defective foot or hand controls - Replace or repair.
Drive pump or motor malfunction - Check and repair if required.

Machine won't move straight or moves jerky

Damaged or jammed track mechanism - Repair or remedy jamming.
Tracks are sagging or worn - Repair tracks or correct track sag with tension.
Foreign objects, debris, or dirt jammed in track frame - Remove debris or foreign objects and clean track frame.

Low power

Clogged hydraulic oil filter - Change hydraulic filter.
Relief valve is damaged or open - Replace or close relief valve.
Faulty or worn transmission components - Inspect and replace defective parts.
Input drive shaft is worn - Rebuild or change the shaft.
Air leaks in hydraulic system - Bleed air from system.

Drive system keeps overheating

Low hydraulic fluid level - Check and refill the hydraulic fluid.
Hydraulic fluid filter is clogged - Change or service hydraulic filter.
Relief valve is damaged - Service or change relief valve.
Drive pump or hydraulic motor malfunction - Check and repair if required.
Hydraulic oil cooler is plugged - Clean cooling fins as required.
Drive system overloaded continuously - Load should be reduced.

Excessive noise

Wrong oil viscosity - Use oil of proper viscosity.
There is air in the hydraulic system - Bleed air from system.
Defective drive pump or hydraulic motor - Inspect and change as required.
Mechanical components of drive system are defective or worn - Inspect the parts for worn or defect and repair as needed.

Hydraulics Troubleshooting

Hydraulic system has overheating

Hydraulic pressure is not adjusted correctly - Adjust pressure as required.
Main relief valve is defective or unadjusted - Adjust or replace the relief valve.
Hydraulic oil is dirty - Hydraulic oil change required.
Not enough hydraulic fluid in the system - Check and refill the hydraulic fluid.
Hydraulic pump is worn - Change or repair hydraulic pump if required.

Lift arm won't raise or lower

Damaged lift controls - Repair or replace.
Hydraulic pump failure - Repair or install new hydraulic pump.
Defective hydraulic control valve - Install a new valve or repair it.
Defective hydraulic cylinder - Install a new boom cylinder or repair it.
Low hydraulic oil level - Need to add oil.

Bucket is not working

Bucket tilt controls malfunction - Repair or replace.
Hydraulic pump is broken - Replace or repair pump if necessary.
Hydraulic control valve failure - Repair or change hydraulic valve.
Damaged bucket cylinder - Repair or replace cylinder.
Low hydraulic fluid level - Fill the system to proper hydraulic fluid level.

Bucket or lift arm is working slowly

Worn hydraulic oil pump - Check pump flow and change pump if necessary.
Hydraulic cylinder oil leakage - Correct leakage by changing the seals.
Hydraulic fluid level low - Fill the system to proper hydraulic fluid level.
Hydraulic control valve is not set properly or defective - Set correctly or repair.
Hydraulic pressure loss - Set pressure correctly.

Lift arm or bucket is working jerkily

There is air in the hydraulic system - Need to bleed air.
Hydraulic oil filter is dirty - Clean or change the filter.
Hydraulic oil is contaminated - Change hydraulic oil.
Cylinder tube or rod is scored - Replace damaged component.

Hydraulic pump is excessively noisy

Hydraulic leakage or low oil level - Refill hydraulic oil or repair leaks in system.
Plugged hydraulic filter - Service or change hydraulic filter.
Suction line clogging - Service the suction line.
Pump is sucking air - Need to bleed air.
Damaged pump components - Install new hydraulic pump or rebuild it.

Electrical Troubleshooting

Battery will not charge

Electrical wire connections are corroded or loose - Tighten or clean connections.
Electrical terminal connectors are faulty - Terminal connectors need to be changed.
Battery failing - Battery replacement required.
Defective or loose belt - Adjust belt tension or change the belt.

Starter motor turns slow

Low battery capacity - Charge the battery.
Battery is draining quickly - Battery needs service or replacement.
Battery cables are disconnected or terminals are faulty - Check cables and clean or change terminals.

Starter will not work

Battery is low or faulty - Recharge or replace battery.
Battery cables are disconnected or improperly connected - Inspect cables and connect properly.
Low battery voltage - Battery needs to be recharged.
Defective starter motor - Repair or change starter.