Case TR340B Track Loader Troubleshooting

The Case TR340B compact track loader is powered by 207 cu.in (3.4L) FPT F5B FL413E vertical four-cylinder turbocharged diesel engine with a rated power of 90 hp (67 kW) at 2500 rpm. The Case TR340B is equipped with a radial-lift loader boom, two-speed hydro transmission, planetary gearbox, and 17.7" (450 mm) rubber tracks with steel inserts. The hydraulic system has a pump with fluid flow rate of 24.2 gpm (91.5 lpm). The hydraulic pressure is 3050 psi (210 bar). The track loader has a rated operating capacity of 2380 lbs (1080 kg) and tipping load of 6800 lbs (3084 kg). The boom lifting force is 7760 lbs (3525 kg), and bucket breakout force is 8700 lbs (3955 kg).

Engine Troubleshooting

Diesel engine hard to start or doesn't start

Air in the fuel system - Air bleeding.
Fuel filter element is dirty - Replace filter element.
Fuel injection nozzles are damaged - If necessary, replace with a new nozzle.
Water or dirt in fuel system - Drain, flush, and service the system.
Incorrect valve clearance - Adjust to proper valve clearance.
Fuel injection pump failure - Repair or install new pump.

Diesel starts but stalls immediately

Plugged air filter - Clean or replace element.
Fuel filter element is dirty - Service or replace the filter.
Fuel injection pump leakage - Check the fuel injection pump for leaks and fix it.
Damaged or clogged injectors - Clean or replace fuel injectors.
Fuel injection pump malfunctioning - Rebuild or replace pump.

Engine stops suddenly during operation

Coolant temperature is low - Warm up the engine as required.
Fuel filter element clogging - Change filter element.
Air in fuel tank - Bleed fuel tank.
Faulty fuel injection nozzles - Install a new kit of correctly balanced nozzles.
Improper fuel injection timing - Set up as recommended.

Engine stalling at idle

Low idle speed set incorrectly - Adjust low idling as recommended.
Defective fuel injection pump - Replace injection pump or repair it.
Defective fuel injectors - Clean or replace fuel injectors.
Valve clearance is not correct - Adjust valve clearance.

Engine power is too low

Air filter is plugged - Install new air filter element.
Dirty or faulty injection nozzles - Test injection nozzles and change if necessary.
Improper fuel injection pressure - Check the fuel injection pressure and adjust if necessary.
Excessive valve clearance - Correct valve clearance.
Incorrectly set low idle speed - Normalize low idle speed.
Fuel lines or hoses are clogged - Fuel hoses and lines must be clean.
Cylinder head gasket defective - Install new cylinder head gasket.
Defective or worn piston rings - Change piston rings.

Engine overheated

Insufficient coolant fluid - Fill radiator to proper level and check components for faults.
Not enough engine oil - Fill up the oil to required level.
Dirty radiator fins or defective radiator cap - Clean radiator or replace cap.
Broken or loose fan belt - If necessary, replace the belt.
Engine overload - Load reducing required.

Low oil pressure

Oil level is insufficient - Add oil to the engine crankcase.
Plugged engine oil filter - Service or change engine oil filter element.
Oil grade or viscosity is wrong - Fill up with the correct oil viscosity.
Excessive oil clearance of crankshaft bearing - Change bearings.
Oil pump is defective - Repair or replace.

Abnormal engine noise or knocking

Engine oil insufficient - Add oil to the engine crankcase.
Coolant temperature is low - Warm up the engine.
Fuel injection pump timing is not adjusted - Check the fuel injection pump timing adjustment.
Low idle speed setting is incorrect - Adjust as required.
Fuel injectors are faulty or clogged - Test and replace fuel injectors if necessary.
Connecting rod is not aligned or defective - Replace or align connecting rod.
Pistons are worn or scored - Pistons need to be replaced.

Drive System Troubleshooting

Drive system will not operate in either direction

Hydraulic oil is insufficient - Need to add oil.
Defective or blocked track mechanism - Remove blockage or repair tracks.
Stuck relief valve - Repair or replace relief valve.
Dirty hydraulic filter or suction line - Clean suction line or replace hydraulic filter.
Faulty foot or hand controls - Change or repair.
Damaged drive pump or motor - Replace or repair faulty component.

Machine does not move straight or moves jerky

Damaged or jammed track mechanism - Repair or remove jamming.
Tracks are worn or improperly tensioned - Adjust track tension as required or replace tracks.
Undercarriage track frame is plugged with dirt, debris, or foreign objects - Clean undercarriage track frame, remove foreign objects and debris.

Reduced power

Clogged hydraulic oil filter - Change hydraulic filter.
Open or damaged relief valve - Replace or close relief valve.
Faulty or damaged transmission components - Check and replace defective components.
Input drive shaft is worn - Replace or service the drive shaft.
Air leaks in hydraulic system - Need to bleed air.

Drive system keeps overheating

Insufficient hydraulic oil - Fill the system to proper hydraulic oil level.
Clogged hydraulic fluid filter - Change or service hydraulic filter.
Relief valve failure - Repair or replace.
Drive pump or hydraulic motor is damaged - Inspect and change as required.
Hydraulic oil cooler is plugged - Clean cooling fins as required.
Overloaded drive system - Reduce loading.

Drive system is noisy

Oil viscosity is wrong - Use correct oil viscosity.
Hydraulic system is leaking air - Bleed hydraulic system.
Hydraulic motor or drive pump is worn - Replace or repair faulty component.
Defective or worn mechanical parts of drive system - Inspect drive system and replace faulty components.

Hydraulics Troubleshooting

Hydraulic system overheating

Hydraulic pressure incorrectly adjusted - Hydraulic pressure must be set correctly.
Main relief valve failure or improper setting - Adjust or replace the relief valve.
Contaminated hydraulic oil - Fill up with fresh hydraulic oil.
Hydraulic fluid level is insufficient - Need to add fluid.
Hydraulic pump is defective - Change or repair hydraulic pump if required.

Boom can't lift or drop

Lift controls are defective - Change or repair.
Damaged hydraulic oil pump - Install new pump or repair it.
Defective hydraulic control valve - Install a new hydraulic valve or repair it.
Hydraulic cylinder not working - Install a new boom cylinder or repair it.
Insufficient hydraulic oil - Check and refill the hydraulic oil.

Bucket is not working

Bucket controls are faulty - Check and repair as required.
Damaged hydraulic oil pump - Install new pump or repair it.
Defective hydraulic control valve - Repair or change hydraulic valve.
Hydraulic bucket cylinder not working - Repair or change cylinder.
Hydraulic oil level low - Checking hydraulic oil level and add if necessary.

Slow boom or bucket operation

Hydraulic pump is faulty - Check pump flow and change pump if necessary.
Hydraulic cylinder oil leakage - Replace cylinder piston seals.
Low hydraulic fluid level - Fill up the hydraulic fluid.
Defective or not adjusted hydraulic control valve - Repair or set correctly.
Hydraulic pressure loss - Hydraulic pressure must be set correctly.

Bucket or boom is moving jerkily

Air in hydraulic system - Need to bleed air.
Hydraulic oil filter clogging - Change or clean oil filter.
Contaminated hydraulic oil - Fill up with fresh hydraulic oil.
Cylinder rod or tube is scratched - Change defective component.

Hydraulic pump is excessively noisy

Hydraulic leaks or low oil level - Refill hydraulic oil or repair leaks in system.
Hydraulic filter is dirty - Change or clean oil filter.
Suction line is clogged - Suction line needs to be cleaned.
Air trapped in hydraulic pump - Bleed air from hydraulics.
Faulty pump parts - Rebuild or install new pump.

Electrical Troubleshooting

Battery won’t charge

Electrical cable connections are corroded or loose - Tighten or service connections.
Defective electrical terminal connectors - Terminal connectors need to be changed.
Dead cell in battery - Replace the battery.
Damaged or loose belt - Install a new belt or adjust belt tension.

Starter cranks slow

Low battery power - Battery is drained, recharge it.
Battery will not hold charge - Service battery or replace it.
Disconnected wires or corroded battery terminals - Connect wiring properly or install new terminals.

Starter motor is not working

Battery is low or faulty - Charge or change the battery.
Wiring harness is disconnected or improperly connected - Check wiring harness and connect as required.
Low battery capacity - Battery is drained, recharge it.
Starter motor is defective - Repair or install a new starter.