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| Home / Skid Steer Loaders / John Deere Skid Steer Loaders / John Deere 270 Series 2 |
John Deere 270 Troubleshooting
The
John Deere 270 Series 2 skid steer loader is powered by 275 cu.in (4.5L) John
Deere 4045D 4-cylinder direct injection liquid-cooled diesel engine with a rated
power of 77 hp (57.5 kW) at 2500 rpm. The John Deere 270 is equipped with a
single-speed or two-speed hydrostatic transmission, vertical-lift loader boom,
100HD drive chains, and 14.00x17.5 standard tires. The hydraulic system has a
pump with fluid flow rate of 21.3 gpm (80.6 lpm) or 34.9 gpm (132.1 lpm). The
skid steer has a rated operating capacity of 2800 lbs (1270 kg) and
tipping load of 5600 lbs (2540 kg). The boom breakout force is 4800 lbs (2180
kg), and bucket breakout force is 10500 lbs (4765 kg).
| Engine Troubleshooting |
Engine hard to start or doesn't start
Air in fuel tank - Bleed fuel tank.
Fuel filter element is clogged - Service or replace the filter.
Burnt or clogged injection nozzle - Inspect nozzles and replace if necessary.
Dirt or water in fuel system - Drain water or flush dirt from the system.
Incorrect valve clearance - Need to adjust valve clearance.
Fuel injection pump is damaged - Replace or rebuild injection pump.
Engine starts and immediately shuts off
Plugged air filter - Clean or change filter.
Fuel filter element is clogged - Clean the filter or install new filter element.
Fuel injection pump has loose connections - Tighten the connections.
Damaged or clogged injectors - Clean fuel injectors or change it.
Fuel injection pump is not working correctly - Repair or install new pump.
Engine stalls during operation
Engine is not preheated - Normalize the temperature by warming up the engine.
Fuel filter plugging - Replace filter element.
Air in the fuel pipes - Bleed the fuel pipes.
Clogged or defective injection nozzles - If necessary, replace with a new nozzle.
Timing of fuel injection pump is incorrect - Adjust as recommended.
Engine stops when idling
Incorrectly adjusted low idle speed - Need to adjust idle speed.
Fuel injection pump malfunction - Replace or repair injection pump.
Clogged or defective injectors - Replace fuel injectors.
The valve clearance is incorrect - Adjust valve clearance.
Loss of engine power
Dirty air filter - Service or replace the air filter.
Defective or clogged injection nozzle - Service or change injection nozzles.
Fuel injection pressure is incorrect - Adjust pressure to proper level.
Excessive valve clearance - Correct valve clearance needs to be set.
Low idle speed setting is incorrect - Adjustment required.
Dirt in the fuel hoses or lines - Fuel hoses and lines must be clean.
Cylinder-head gasket is leaking - Change cylinder head gasket.
Piston rings are worn or defective - Replace piston rings.
Engine overheating
Engine has a lack of coolant - Add coolant fluid to cooling system and also check it for leaks.
Low engine oil level - Check oil level and add oil as required.
Radiator core is clogged or radiator cap is leaking - Install new cap or clean radiator.
Fan belt is broken or worn - Belt replacement is recommended.
Diesel engine is overloaded - Reduce engine load.
Insufficient oil pressure
Engine oil insufficient - Fill the crankcase with oil.
Clogged oil filter - Replace or service engine oil filter.
Improper type of engine oil - Use correct viscosity oil.
Excessive crankshaft bearing oil clearance - Change bearings.
Oil pump is worn or damaged - Remove and inspect oil pump.
Engine knocking or noise
Engine oil insufficient - Need to add engine oil.
Low coolant temperature - Warm up the engine.
Fuel injection pump timing is not adjusted - Adjust the pump as required.
Incorrectly set low idle speed - Correct low idle adjustment.
Dirty or defective injectors - Replace or clean fuel injectors.
Connecting rod is not aligned or worn - Need to replace or align the connecting rod.
Pistons are worn or scored - Replace the pistons as required.
| Drive System Troubleshooting |
Drive system won't work in one direction or either direction
Hydraulic fluid is insufficient - Check and refill the hydraulic fluid.
Faulty drive chain - Check drive chain and change defective parts.
Stuck relief valve - Repair or replace.
Suction line or hydraulic filter is plugged - Change hydraulic filter or service suction line.
Faulty hand or foot controls - Replace or repair.
Worn drive motor or pump - Check and repair if required.
Lack of power
Hydraulic oil filter is plugged - Replace hydraulic filter.
Relief valve is damaged or open - Close or replace relief valve.
Defective or worn transmission parts - Check and replace faulty components.
Worn input drive shaft - Replace drive shaft.
Air in hydraulic system - Bleed air from hydraulic system.
Overheated drive system
Insufficient hydraulic fluid - Fill up the hydraulic fluid.
Hydraulic fluid filter is dirty - Replace or clean hydraulic filter.
Relief valve is damaged or worn - Change or repair defective relief valve.
Hydraulic motor or drive pump failure - Check and repair if required.
Oil cooler is clogged - Clean cooling fins as required.
Transmission overloading - Load should be reduced.
Drive system is excessively noisy
Oil viscosity is incorrect - Drain and refill with proper oil.
Air in hydraulic system - Bleed air from hydraulic system.
Drive pump or hydraulic motor is damaged - Change or repair faulty component.
Defective or worn mechanical components of drive system - Check the components for defect or damage and change if necessary.
| Hydraulics Troubleshooting |
Hydraulic system overheats
Incorrect hydraulic pressure setting - Adjust pressure correctly.
Main relief valve malfunction or improper adjustment - Set up or change the relief valve.
Hydraulic fluid contamination - The fluid must be changed.
Lack of hydraulic fluid - Check and refill the hydraulic fluid.
Hydraulic pump is worn - Repair or replace pump if necessary.
Boom cannot be lowered or raised
Lift controls are defective - Replace or repair.
Damaged hydraulic oil pump - Change or repair hydraulic pump if required.
Faulty hydraulic control valve - Install a new hydraulic valve or repair it.
Hydraulic cylinder is faulty - Install a new boom cylinder or repair it.
Hydraulic oil level low - Need to add oil.
Bucket won't move
Damaged bucket controls - Change or repair.
Damaged hydraulic oil pump - Change or repair hydraulic pump if required.
Defective hydraulic control valve - Install a new hydraulic valve or repair it.
Hydraulic bucket cylinder is defective - Install a new cylinder or repair it.
Insufficient hydraulic oil - Fill the system to proper hydraulic oil level.
Slow bucket or lift arm action
Faulty hydraulic oil pump - Check the pump capacity and replace pump if required.
Hydraulic cylinder oil leakage - Repair leak by replacing the seals.
Low hydraulic oil level - Check and refill the hydraulic oil.
Worn or unadjusted hydraulic control valve - Adjust properly or repair.
Hydraulic system loosing pressure - Set pressure correctly.
Lift arm or bucket movements are jerky
Hydraulic system is leaking air - Need to bleed air.
Hydraulic oil filter clogging - Clean or install new filter.
Hydraulic fluid is contaminated - Hydraulic fluid change required.
Cylinder tube or rod scoring - Change worn component.
Hydraulic pump is noisy
Low oil level or hydraulic leaks - Correct hydraulic leaks or top up oil as needed.
Hydraulic filter is dirty - Clean or install new filter.
Plugged suction line - Clean suction line as required.
Air trapped in hydraulic pump - Remove air from hydraulics.
Damaged pump parts - Change or rebuild pump.
| Electrical Troubleshooting |
Battery will not charge
Loose or corroded cable connections - Clean or tighten connections.
Defective battery terminal connectors - Terminal connectors should be replaced.
Battery dead cell - Replace the battery.
Loose or defective belt - Adjust belt tension or replace belt.
Starter motor turns slow
Battery power is low - Low battery charging, charge as required.
Battery is not holding charge - Service or change the battery.
Wires are disconnected or battery terminals are corroded - Check battery wires and service or replace terminals.
Starter motor is not working
Battery is drained or worn - Charge or change the battery.
Wiring harness is disconnected or improperly connected - Check wiring harness and connect as required.
Low battery power - Charge the battery.
Faulty starter motor - Repair or replace starter.
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| SKID STEER LOADERS SPECIFICATIONS |