John Deere CT332 Track Loader Troubleshooting

The John Deere CT332 compact track loader driveline system components: a 186 cu.in (3L) PowerTech 5030TW 5-cylinder turbocharged diesel engine with a rated power of 76 hp (56.7 kW), and single-speed or two-speed hydrostatic transmission. The hydraulic system has a pump with a rated flow of 24 gpm (90 lpm). The system pressure is 3100 psi (214 bar). The John Deere CT332 is equipped with vertical-lift loader boom, wet-disc brakes, and rubber tracks with steel inserts. The loader has a max lift height of 127.2" (3230 mm) to hinge pin and dump height of 102" (2590 mm). The rated operating capacity is 3200 lbs (1453 kg), and tipping load is 9200 lbs (4176 kg).

Engine Troubleshooting

Engine starts up hard or won't start

Air in the fuel pipes - Bleed the fuel pipes.
Clogged fuel filter - Filter maintenance required.
Faulty or dirty injection nozzles - Clean or change injection nozzles.
Water or dirt in fuel system - Drain, flush, and service the system.
Valve clearance is not correct - Correct valve clearance.
Fuel injection pump failure - Repair or replace injection pump.

Diesel starts and then shuts off

Dirty air cleaner - Clean or change cleaner.
Dirty fuel filter - Clean or replace the filter.
Problems with fuel injection pump tightness - Inspect fuel injection pump for leaks.
Dirty or defective injectors - Inspect fuel injectors and change as required.
Faulty fuel injection pump - Change pump or rebuild it.

Engine stops running suddenly

Engine not warmed up - Warm up the engine as required.
Fuel filter is plugged - Clean or change the filter.
Air in the fuel lines - Bleed the fuel lines.
Clogged injection nozzle - If necessary, replace with a new nozzle.
Improper fuel injection timing - Check the fuel injection pump timing adjustment.

Engine stalls at low idle speed

Improperly adjusted low idle speed - Adjust as required.
Defective fuel injection pump - Install a new pump or rebuild.
Defective fuel injectors - Replace or clean fuel injectors.
Excessive valve clearance - Have it adjusted.

Engine power is insufficient

Plugged air filter - Clean or change filter.
Faulty fuel injection nozzles - Clean or change injection nozzles.
Incorrect fuel injection pressure - Test fuel injection pressure and adjust it correctly.
Excessive valve clearance - Have it adjusted.
Low idle speed setting is incorrect - Adjust low idling as recommended.
Dirt in the fuel lines or hoses - Service fuel lines and hoses.
Cylinder-head gasket is leaking - Gasket should be replaced.
Worn or broken piston rings - Replace piston rings.

Engine overheating

Lack of engine coolant - Add coolant and check the components of cooling system.
Engine oil level is low - Need to add engine oil.
Dirty radiator fins or defective radiator cap - Replace cap or clean radiator.
Loose or damaged fan belt - Change the fan belt.
Diesel engine is overloaded - Load reducing is recommended.

Oil pressure too low

Oil level is low - Checking oil level and add if necessary.
Oil filter clogging - Change or service engine oil filter.
Incorrect engine oil Use the specified type of engine oil.
Excessive oil clearance of crankshaft bearing - Replace bearings.
Oil pump is worn or damaged - Repair or change.

Engine knocking or noise

Engine oil level is insufficient - Need to add engine oil.
Coolant temperature is low - Warm up the engine.
Fuel injection pump timing is wrong - Adjust as recommended.
Too low idle RPM - Normalize low idle speed.
Defective fuel injectors - Change or clean fuel injectors.
Connecting rod is defective or not aligned - Align or replace connecting rod.
Broken or worn pistons - Pistons need to be replaced.

Drive System Troubleshooting

Machine is not moving forward or backward

Low hydraulic fluid level - Fill up the hydraulic fluid.
Blocked or defective track mechanism - Remedy blockage or repair tracks.
Faulty relief valve - Service or change relief valve.
Plugged suction line or hydraulic filter - Service suction line or change hydraulic filter.
Hand or foot controls malfunction - Check and repair as required.
Worn drive motor or pump - Inspect and change as required.

Machine won't drive straight or drives jerkily

Undercarriage tracks are jammed or defective - Remove jamming or repair tracks.
Tracks are worn or loose - Adjust track tension or repair tracks.
Undercarriage track frame is clogged with dirt, debris, or foreign objects - Remove foreign objects or debris and clean undercarriage track frame.

Power is too low

Hydraulic oil filter is plugged - Replace hydraulic filter.
Open or faulty relief valve - Close or change relief valve.
Defective or worn transmission parts - Inspect and replace faulty parts.
Worn input drive shaft - Repair or replace drive shaft.
Air leaks in hydraulic system - Bleed hydraulic system.

Drive system overheating

Hydraulic oil level is low - Fill the system to proper hydraulic oil level.
Hydraulic fluid filter is clogged - Replace or service hydraulic filter.
Defective relief valve - Repair or replace.
Worn hydraulic motor or drive pump - Repair or replace faulty component.
Dirty oil cooler - Clean the cooling fins.
Transmission overloading - Reduce the load.

Drive system makes excessive noise

Improper oil viscosity - Use proper oil viscosity.
Air in the hydraulic system - Bleed air from system.
Hydraulic motor or drive pump is defective - Inspect and replace as necessary.
Mechanical parts of drive system are defective or worn - Check drive system and change faulty parts.

Hydraulics Troubleshooting

Hydraulic system overheating

Hydraulic pressure is not correct - Adjust pressure correctly.
Main relief valve is faulty or misadjusted - Adjust or replace the relief valve.
Hydraulic oil is contaminated - Hydraulic oil change required.
Hydraulic fluid level is insufficient - Check and refill the hydraulic fluid.
Faulty hydraulic oil pump - Replace or repair pump if necessary.

Boom fails to lift or drop

Lift controls are damaged - Replace or repair.
Damaged hydraulic oil pump - Repair or change pump if required.
Hydraulic control valve failure - Repair or replace the valve.
Hydraulic cylinder is defective - Repair or change hydraulic cylinder.
Insufficient hydraulic fluid - Fill the system to proper hydraulic fluid level.

Bucket is not working

Bucket controls are faulty - Check and repair as required.
Hydraulic pump failure - Install new pump or repair it.
Hydraulic control valve is faulty - Repair or change the valve.
Broken bucket cylinder - Repair or replace cylinder.
Insufficient hydraulic oil - Check and refill the hydraulic oil.

Bucket or lift arm runs slowly

Hydraulic pump is defective - Check hydraulic pump flow and replace pump if necessary.
Oil leaks from hydraulic cylinder - Change cylinder piston seals.
Low hydraulic fluid level - Fill the system to proper hydraulic fluid level.
Worn or unadjusted hydraulic control valve - Repair or adjust properly.
Hydraulic pressure has dropped - Correct adjustment is required.

Bucket or boom is moving jerkily

Air leaks in hydraulic system - Bleed air from hydraulic system.
Dirty hydraulic oil filter element - Clean or replace the filter.
Contaminated hydraulic fluid - The fluid must be changed.
Scored cylinder tube or rod - Change worn component.

Hydraulic pump is noisy

Hydraulic leakage or low oil level - Correct hydraulic leaks or top up oil as needed.
Hydraulic filter is dirty - Clean or replace the filter.
Suction line clogging - Clean suction line as required.
Air trapped in hydraulic pump - Remove air from hydraulics.
Damaged pump components - Replace or rebuild the pump.

Electrical Troubleshooting

Battery does not charge

Electrical wire connections are corroded or loose - Service or tighten connections.
Defective battery terminal clamps - Terminal clamps should be changed.
Battery is defective - Battery change required.
Belt is loose or defective - Change belt or adjust belt tension.

Starter turns slowly

Low battery output - Charge the battery.
Battery is not holding charge - Service or change the battery.
Bad battery terminals or disconnected wiring - Connect cables properly or replace terminals.

Starter is not cranking

Battery is drained or worn - Replace or charge as required.
Wiring harness is disconnected or improperly connected - Check wiring harness and connect as required.
Battery capacity is low - Recharge the battery.
Starter motor is faulty - Change or repair starter.