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Case SV340 Troubleshooting

The Case SV340 skid steer loader is powered by 207 cu.in (3.4L) FPT F5B FL413 four-cylinder direct injection turbocharged diesel engine with a rated power of 84 hp (63 kW) at 2500 rpm. The Case SV340 is equipped with a vertical-lift loader boom, single-speed or two-speed hydrostatic transmission, ASA 100 drive chains, and 14.00x17.5 standard tires. The hydraulic system has a pump with fluid flow rate of 24.2 gpm (91.5 lpm) or 38.7 gpm (146.5 lpm). The loader has a boom breakout force of 6815 lbs (3100 kg) and bucket breakout force of 9530 lbs (4330 kg). The rated operating capacity is 3400 lbs (1545 kg), and tipping load is 6800 lbs (3090 kg).

Engine Troubleshooting

Engine difficult to start or won't start
Air in the fuel lines - Bleed the fuel lines.
Fuel filter plugged - Service or replace the filter.
Damaged or dirty injection nozzles - Change fuel injection nozzles.
Water in the fuel system - Change fuel and repair fuel system.
The valve clearance is not adjusted - Adjust valve clearance.
Fuel injection pump malfunctioning - Replace injection pump or repair it.

Engine starts but stops suddenly
Air filter is dirty - Service or replace the air filter.
Fuel filter plugged - Clean or change the filter.
Fuel injection pump has loose connections - Tighten the connections.
Dirty or defective injectors - Clean or replace fuel injectors.
Fuel injection pump failure - Repair or replace injection pump.

Engine shuts off suddenly during operation
Engine is cold - Normalize the temperature by warming up the engine.
Fuel filter element clogging - Change the filter element.
There is air in the fuel system - Bleed the system.
Dirty or faulty injection nozzles - Clean or replace injection nozzles.
Improper setting of fuel injection pump timing - Adjust according to specifications.

Engine stalls when idle
Low idle speed setting is not correct - Adjust low idling as recommended.
Fuel injection pump is not working correctly - Replace injection pump or repair it.
Defective fuel injectors - Clean or replace fuel injectors.
Improper valve clearance - Have it adjusted.

Engine loses power
Air filter is dirty - Clean or change.
Fuel injection nozzles are damaged - Clean or replace injection nozzles.
Uneven fuel injection pressure - Adjust pressure to proper level.
The valve clearance is not adjusted - Correct valve clearance.
Low idle speed setting is not correct - Adjust low idle speed.
Dirt in the fuel lines or hoses - Fuel lines and hoses need to be cleaned.
Cylinder head gasket is blown - Change cylinder head gasket.
Piston rings are defective or leaking - Change piston rings.

Engine overheats
Lack of engine coolant - Fill the cooling system and check components for leaks or other faults.
Insufficient engine oil - Add oil to the engine crankcase.
Dirty radiator fins or faulty radiator cap - Clean radiator or install new cap.
Loose or damaged fan belt - Belt change is required.
Diesel engine overloaded - Load reducing required.

Low oil pressure
Engine oil level low - Need to add oil.
Oil filter element clogged - Service or change engine oil filter element.
Wrong oil viscosity - Fill up with the proper oil viscosity.
Incorrect oil clearance in main bearing - Bearing replacement required.
Oil pump failure - Inspect and change as required.

Engine noise or knocking
Engine oil level is insufficient - Check oil level and add oil as required.
Engine is cold - Warm up the engine.
Fuel injection pump timing is wrong - Adjust as recommended.
Low idle speed set incorrectly - Adjust as required.
Fuel injector fault - Clean or replace fuel injectors.
Connecting rod misalignment or failure - Need to replace or align the connecting rod.
Pistons are worn or scored - Replace the pistons.

Drive System Troubleshooting

Drive system won't operate in either direction
Hydraulic fluid level low - Fill the system to proper hydraulic fluid level.
Faulty drive chain - Inspect drive chain and replace defective components.
Relief valve failure - Service or change relief valve.
Clogged suction line or hydraulic filter - Replace hydraulic filter or clean suction line.
Hand or foot controls failure - Change or repair.
Drive pump or motor malfunction - Inspect and change as required.

Loss of power
Dirty hydraulic oil filter - Change or service hydraulic filter.
Relief valve is opened or defective - Close or replace relief valve.
Defective or worn transmission parts - Check and replace faulty components.
Input drive shaft is stuck - Service or change faulty drive shaft.
Hydraulic system is leaking air - Air bleeding is required.

Drive system keeps overheating
Hydraulic oil is insufficient - Checking hydraulic oil level and add if necessary.
Hydraulic fluid filter is clogged - Replace or clean hydraulic filter.
Relief valve is worn or damaged - Rebuild or install a new relief valve.
Hydraulic motor or drive pump failure - Repair or change faulty component.
Plugged hydraulic oil cooler - Clean cooling fins as required.
Overloaded drive system - Reduce loading.

Drive system makes excessive noise
Incorrect oil viscosity - Drain and refill with correct oil.
Air in the hydraulic system - Bleed air from system.
Drive pump or hydraulic motor malfunction - Check and repair if required.
Mechanical parts of drive system are defective or worn - Inspect the components for defect or damage and repair as needed.

Hydraulics Troubleshooting

Hydraulic system overheats
Incorrect hydraulic pressure setting - Hydraulic pressure must be set correctly.
Main relief valve malfunction or improper adjustment - Replace or set up the relief valve.
Contaminated hydraulic oil - Fill up with fresh hydraulic oil.
Lack of hydraulic oil - Check oil level and add hydraulic oil as required.
Hydraulic pump is worn - Change or repair hydraulic pump if required.

Boom fails to lift or drop
Lift controls malfunction - Check and repair as required.
Hydraulic pump failure - Replace or repair pump if necessary.
Damaged hydraulic control valve - Repair or replace the valve.
Hydraulic cylinder failure - Repair or change hydraulic cylinder.
Hydraulic fluid is insufficient - Fill the system to proper hydraulic fluid level.

Bucket tilt does not work
Bucket tilt controls malfunction - Replace or repair.
Damaged hydraulic oil pump - Repair or replace pump if necessary.
Faulty hydraulic control valve - Install a new valve or repair it.
Bucket cylinder malfunction - Change or repair cylinder.
Hydraulic oil level low - Need to add oil.

Boom or bucket moves slowly
Defective hydraulic pump - Test the pump performance and change pump if required.
Leaking hydraulic cylinder - Correct leakage by changing the seals.
Insufficient hydraulic fluid - Checking hydraulic fluid level and add if necessary.
Hydraulic control valve is defective or set improper - Repair or adjust properly.
Hydraulic system loosing pressure - Correct setting is required.

Lift arm or bucket is working jerkily
Air trapped in hydraulic system - Need to bleed air.
Clogged hydraulic oil filter element - Change or clean oil filter.
Hydraulic fluid is contaminated - Hydraulic fluid change required.
Cylinder rod or tube is scratched - Change worn component.

Hydraulic pump is noisy
Hydraulic system leaking or not enough oil - Top up hydraulic oil or remedy leakage in system.
Hydraulic filter is clogged - Clean or change the filter.
Suction line is dirty - Service the suction line.
Air in hydraulic pump - Bleed air from hydraulics.
Faulty pump components - Replace or rebuild the pump.

Electrical Troubleshooting

Battery will not charge
Loose or corroded cable connections - Tighten or service connections.
Battery terminal clamps are faulty - Replace terminal clamps.
Defective battery - Install a new battery.
Defective or loose belt - Need to adjust belt tension or replace belt.

Starter motor turns slow
Low battery output - Battery is drained, recharge it.
Battery is not holding charge - Service charging system or install new battery.
Battery terminals are corroded or wires are disconnected - Connect wiring properly or install new terminals.

Starter motor is not working
Battery is drained or defective - Change or recharge battery.
Battery cables are disconnected or incorrectly connected - Check cables and connect as needed.
Low battery output voltage - Battery is drained, recharge it.
Starter motor failing - Starter needs to be replaced.