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| Home / Skid Steer Loaders / John Deere Skid Steer Loaders / John Deere 3375 |
John Deere 3375 Troubleshooting
The
John Deere 3375 skid steer loader is powered by 40.2 cu.in (0.7L) Yanmar 3TN66
3-cylinder indirect injection liquid-cooled diesel engine with a rated power of
17 hp (12.6 kW) at 3400 rpm. The John Deere 3375 is equipped with a single-speed
hydrostatic transmission, radial-lift loader boom, heavy-duty drive chains, and
5.70x12 standard tires. The hydraulic system has a pump with fluid flow rate of
8 gpm (30.3 lpm). The hydraulic pressure is 1600 psi (110 bar). The skid steer
loader has a rated operating capacity of 700 lbs (317 kg) and tipping load of
1400 lbs (635 kg). The lift capacity is 750 lbs (340 kg), and breakout force is
1000 lbs (455 kg).
| Engine Troubleshooting |
Engine starts up hard or doesn't start
Air trapped in fuel system - Bleed air.
Fuel filter plugging - Clean or replace the filter.
Dirty or damaged injection nozzles - Test injection nozzles and change if necessary.
Water or dirt in fuel system - Drain, flush, and service the system.
Improper valve clearance - Need to adjust valve clearance.
Damaged fuel injection pump - Rebuild or change fuel pump.
Engine starts but immediately stalls
Air filter is plugged - Clean or change filter.
Clogged fuel filter - Change filter element.
Fuel injection pump has loose connections - Tighten the connections.
Fuel injectors are faulty or clogged - Clean or replace fuel injectors.
Fuel injection pump is not working correctly - Rebuild or install a new injection pump.
Engine stops suddenly during operation
Engine is cold - Engine is not warmed up to the required temperature.
Dirty fuel filter - Replace the filter element.
There is air in the fuel system - Bleed the system.
Clogged or burnt injection nozzle - Service or change injection nozzles.
Timing of fuel injection pump is incorrect - Adjust the pump as required.
Engine stalling at idle
Low idle speed setting is not correct - Correct the settings.
Defective fuel injection pump - Repair or replace injection pump.
Fuel injectors are dirty or defective - Clean or replace fuel injectors.
Valve out of adjustment - Adjust valve clearance according to specifications.
Engine power is insufficient
Dirty air cleaner - Clean or change cleaner.
Fuel injection nozzles are faulty or clogged - Check and replace nozzles if required.
Fuel injection pressure is wrong - Adjust to proper pressure.
The valve clearance is incorrect - Adjust valve clearance according to specifications.
Incorrect low idle speed adjustment - Correct the settings.
Clogged fuel lines or hoses - Service fuel hoses and lines.
Worn cylinder head gasket - Replace cylinder head gasket.
Damaged or leaking piston rings - Piston rings need to be replaced.
Engine is overheated
Low coolant level - Top up coolant fluid and check system for leaks.
Not enough engine oil - Checking oil level and add if necessary.
Clogged radiator core or damaged radiator cap - Clean radiator or change cap.
Loose or damaged fan belt - Belt replacement is recommended.
Diesel engine overloaded - Load reducing is recommended.
Oil pressure is insufficient
Insufficient engine oil - Check oil level and add oil as required.
Plugged engine oil filter - Replace or clean engine oil filter element.
Incorrect oil viscosity - Use the specified type of engine oil.
Excessive oil clearance of crankshaft bearing - Bearings need to be reinstalled.
Oil pump malfunction - Remove and inspect oil pump.
Abnormal engine noise or knocking
Engine oil level is insufficient - Checking oil level and add if necessary.
Low coolant temperature - Warm up to required temperature.
Improper fuel injection timing - Adjust the pump as required.
Incorrect low idle speed adjustment - Correct low idle adjustment.
Fuel injectors are dirty or defective - Clean or replace fuel injectors.
Faulty or misaligned connecting rod - Alignment procedure or replacement is required.
Pistons are scored or worn - Have pistons replaced.
| Drive System Troubleshooting |
Drive system won't operate in either direction
Hydraulic oil level is low - Checking hydraulic oil level and add if necessary.
Drive chain fault - Inspect drive chain and replace faulty components.
Defective or worn relief valve - Repair or change.
Hydraulic filter or suction line is clogged - Change hydraulic filter or service suction line.
Defective hand or foot controls - Replace or repair.
Defective drive pump or motor - Repair or replace faulty component.
Low power
Hydraulic oil filter is plugged - Check, clean, or replace as required.
Open or faulty relief valve - Close or replace relief valve.
Worn or faulty transmission components - Inspect and replace faulty parts.
Defective input drive shaft - Replace or service the drive shaft.
Hydraulic system is leaking air - Bleed air from system.
Overheated drive system
Insufficient hydraulic fluid - Fill the system to proper hydraulic fluid level.
Hydraulic fluid filter is plugged - Replace or clean hydraulic filter.
Faulty relief valve - Repair or install a new relief valve.
Hydraulic motor or drive pump is worn - Replace or repair faulty component.
Hydraulic oil cooler is dirty - Cooling fins should be cleaned.
Drive system overload - Reduce loading.
Excessive noise
Oil viscosity is wrong - Use proper oil viscosity.
Air in hydraulic system - Need to bleed air.
Drive pump or hydraulic motor malfunction - Replace or repair faulty component.
Mechanical components of drive system are damaged or worn - Check the components for worn or defect and replace if necessary.
| Hydraulics Troubleshooting |
Hydraulic system overheating
Incorrect hydraulic pressure setting - Correct adjustment is required.
Faulty or improperly adjusted main relief valve - Adjust the valve or replace if necessary.
Contaminated hydraulic fluid - Change hydraulic fluid.
Hydraulic oil level is insufficient - Check oil level and add hydraulic oil as required.
Hydraulic pump is faulty - Change or repair hydraulic pump if required.
Lift arm fails to drop or lift
Lift controls are defective - Check and repair as required.
Hydraulic pump not working - Change or repair hydraulic pump if required.
Defective hydraulic control valve - Repair or replace hydraulic valve.
Hydraulic cylinder not working - Repair or replace hydraulic cylinder.
Low hydraulic oil level - Checking hydraulic oil level and add if necessary.
Bucket can't tilt
Faulty bucket tilt controls - Replace or repair.
Hydraulic pump not working - Install new pump or repair it.
Damaged hydraulic control valve - Change or repair hydraulic valve.
Damaged bucket cylinder - Install a new cylinder or repair it.
Hydraulic fluid is insufficient - Add fluid as required.
Bucket or lift arm is working slowly
Hydraulic pump is faulty - Check the pump capacity and replace pump if required.
Hydraulic cylinder oil leakage - Cylinder seals need to be replaced.
Hydraulic fluid is insufficient - Fill the system to proper hydraulic fluid level.
Defective or not adjusted hydraulic control valve - Adjust correctly or repair.
Low hydraulic pressure - Correct adjustment is required.
Bucket or boom is working jerkily
Hydraulic system is leaking air - Need to bleed air.
Dirty hydraulic oil filter - Service or replace the hydraulic filter.
Dirty hydraulic fluid - Change hydraulic fluid.
Cylinder tube or rod scoring - Replace worn component.
Hydraulic pump makes excessive noise
Hydraulic system leaking or not enough oil - Refill hydraulic oil or repair leaks in system.
Hydraulic filter is clogged - Clean or install new filter.
Clogged suction line - Suction line must be serviced.
Air enters the pump - Bleed air.
Pump components are damaged - Rebuild or replace hydraulic pump.
| Electrical Troubleshooting |
Battery cannot be charged
Wiring connections are loose or corroded - Clean or tighten wiring connections.
Defective battery terminal connectors - Terminal connectors should be replaced.
Defective battery - Install a new battery.
Loose or defective belt - Adjust belt tension or replace belt.
Starter cranks slowly
Low battery capacity - Battery is drained, charge it.
Battery discharges quickly - Service battery or change it.
Wires are disconnected or battery terminals are corroded - Connect wires correctly or change terminals.
Starter does not work
Battery is discharged or worn - Change or recharge battery.
Battery wiring is disconnected or improperly connected - Inspect wiring and connect as required.
Low battery capacity - Low battery charging, charge as required.
Starter motor is defective - Starter should be changed.
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| SKID STEER LOADERS SPECIFICATIONS |