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John Deere 313 Troubleshooting
The
John Deere 313 skid steer loader is powered by 149.1 cu.in (2.4L) John Deere
PowerTech 4024T 4-cylinder turbocharged diesel engine with a rated power of 45
hp (33.5 kW) at 2400 rpm. The John Deere 313 is equipped with a radial-lift
loader boom, one-speed hydrostatic transmission, 80HZ drive chains, and 10x16.5
standard tires. The hydraulic system has a pump with fluid flow rate of 15 gpm
(56.9 lpm). The hydraulic pressure is 3450 psi (238 bar). The skid steer loader
has a rated operating capacity of 1260 lbs (572 kg) and tipping load of 2525 lbs
(1145 kg). The lift height is 109 inches (2770 mm) to hinge pin, and dump height
is 83.9 inches (2130 mm).
| Engine Troubleshooting |
Engine starts hard or will not start
Air in fuel tank - Bleed fuel tank.
Fuel filter plugged - Service or replace the filter.
Fuel injection nozzles are faulty or clogged - Check injection nozzles and replace if required.
Water or dirt in fuel system - Drain, flush, and service the system.
Excessive valve clearance - Adjust valve clearance.
Fuel injection pump is not working correctly - Repair or install a new fuel pump.
Engine starts and then shuts off
Air cleaner is clogged - Clean or replace element.
Fuel filter element is clogged - Install new filter element.
Problems with fuel injection pump tightness - Inspect fuel injection pump for leaks.
Clogged or defective injectors - Clean fuel injectors or change it.
Fuel injection pump is faulty - Repair or install new pump.
Engine shuts off suddenly during operation
Low coolant temperature - Warm up to required temperature.
Dirty fuel filter - Change filter element.
There is air in the fuel system - Bleed the system.
Fuel injection nozzles are damaged - Replace injection nozzles.
Improper fuel injection timing - Adjust fuel injection pump as required.
Engine stalling at idle
Incorrectly set low idle speed - Need to adjust idle speed.
Fuel injection pump is broken - Install a new fuel pump or repair.
Dirty or defective injectors - Clean fuel injectors or change it.
Incorrect valve clearance - Adjust valve clearance.
Lack of engine power
Plugged air filter - Replace or clean air filter element.
Dirty or damaged injection nozzles - Service or change injection nozzles.
Incorrect fuel injection pressure - Correct the pressure settings.
Incorrect valve clearance - Correct valve clearance.
Incorrectly set low idle speed - Correct low idle settings.
Clogged fuel lines or hoses - Clean fuel hoses and lines.
Worn cylinder head gasket - Install new cylinder head gasket.
Leaking or damaged piston rings - Replace piston rings.
Engine overheated
Insufficient coolant fluid - The cooling system needs to be refilled and checked for faults.
Engine oil level is low - Checking oil level and add if necessary.
Defective radiator cap or clogged radiator fins - Change cap or clean radiator.
Fan belt is broken or worn - Replace as required.
Diesel engine is overloaded - Load reducing required.
Oil pressure is low
Insufficient engine oil - Check and refill the oil.
Dirty oil filter element - Clean or change engine oil filter.
Incorrect oil viscosity - Drain crankcase and refill with correct oil.
Excessive crankshaft bearing oil clearance - Bearing needs to be changed.
Oil pump is defective - Repair or replace.
Abnormal engine knocking or noise
Not enough engine oil - Fill up the oil to required level.
Low coolant temperature - Engine is not warmed up to the required temperature.
Improper fuel injection timing - Set it up as required.
Incorrect low idle speed adjustment - Test and adjust.
Dirty or defective injectors - Clean fuel injectors or change it.
Connecting rod is not aligned or defective - Align or replace connecting rod.
Piston wear or scoring - Pistons replacement required.
| Drive System Troubleshooting |
Drive system doesn't function in one direction or either direction
Low hydraulic oil level - Fill the system to proper hydraulic oil level.
Drive chain fault - Check drive chain and change faulty components.
Relief valve is not working correctly - Repair or install a new relief valve.
Dirty suction line or hydraulic filter - Service suction line or change hydraulic filter.
Faulty hand or foot controls - Replace or repair.
Drive motor or pump is worn - Inspect and change as required.
Low power
Plugged hydraulic oil filter - Check, clean, or replace as required.
Damaged or opened relief valve - Change or close relief valve.
Transmission components are defective or worn - Inspect and replace faulty parts.
Input drive shaft malfunction - Repair or replace drive shaft.
Air in the hydraulic system - Need to bleed air.
Drive system overheats
Low hydraulic fluid level - Fill up the hydraulic fluid.
Plugged hydraulic fluid filter - Change hydraulic filter.
Relief valver is broken - Repair or change.
Damaged drive pump or hydraulic motor - Inspect and replace as necessary.
Hydraulic oil cooler is dirty - Cooling fins need to be cleaned.
Drive system overloaded continuously - Reduce drive system load.
Drive system makes excessive noise
Incorrect oil viscosity - Use correct oil viscosity.
Air in hydraulic system - Need to bleed air.
Drive pump or hydraulic motor malfunction - Inspect and change as required.
Defective or worn mechanical components of drive system - Check the parts for defect or damage and change if required.
| Hydraulics Troubleshooting |
Hydraulic system overheating
Hydraulic pressure is incorrect - Adjust pressure correctly.
Misadjusted or defective main relief valve - Adjust relief valve or change if required.
Hydraulic fluid is dirty - Fill up with fresh hydraulic fluid.
Hydraulic fluid level is insufficient - Fill the hydraulic system with oil.
Faulty hydraulic oil pump - Change or repair hydraulic pump if required.
Boom won't lower or raise
Lift controls failure - Repair or replace.
Hydraulic pump failure - Replace or repair pump if necessary.
Hydraulic control valve is faulty - Repair or change hydraulic valve.
Hydraulic cylinder malfunction - Change or repair lift cylinder.
Hydraulic fluid level low - Fill up the hydraulic fluid.
Bucket tilt does not work
Damaged bucket controls - Repair or change.
Hydraulic pump failure - Repair or replace pump if necessary.
Hydraulic control valve failure - Change or repair hydraulic valve.
Bucket cylinder malfunction - Replace or repair cylinder.
Low hydraulic oil level - Need to add oil.
Boom or bucket is moving slowly
Hydraulic pump is defective - Test the pump performance and change pump if required.
Leaking hydraulic cylinder - Replace cylinder piston seals.
Insufficient hydraulic fluid - Fill up the hydraulic fluid.
Hydraulic control valve is unadjusted or worn - Set properly or repair.
Hydraulic pressure has dropped - Adjust pressure as required.
Lift arm or bucket is working jerkily
There is air in the hydraulic system - Air bleeding is required.
Dirty hydraulic oil filter - Clean or install new filter.
Hydraulic oil is contaminated - The oil must be changed.
Cylinder rod or tube is scuffed - Replace damaged component.
Hydraulic pump is noisy
Hydraulic leakage or low oil level - Add hydraulic oil or correct system leaks.
Hydraulic filter clogging - Clean or change the filter.
Suction line clogging - Suction line must be serviced.
Air in hydraulic pump - Remove air from hydraulics.
Pump components are damaged - Rebuild or change hydraulic pump.
| Electrical Troubleshooting |
Battery is not charging
Corroded or loose cable connections - Clean or tighten wiring connections.
Faulty battery terminal clamps - Install new terminal clamps.
Worn-out battery - Battery change required.
Loose or damaged belt - Adjust belt tension or change the belt.
Starter cranks slowly
Battery power is low - Charge the battery.
Battery will not hold charge - Battery needs service or replacement.
Wires are disconnected or battery terminals are corroded - Check cable connections and change or clean terminals.
Starter motor won't turn
Battery is discharged or worn - Battery needs to be recharged or replaced.
Battery wiring is disconnected or improperly connected - Inspect wiring and connect as required.
Battery power is low - Charge the battery.
Starter motor is defective - Starter should be replaced.
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| SKID STEER LOADERS SPECIFICATIONS |