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| Home / Skid Steer Loaders / John Deere Skid Steer Loaders / John Deere 260 Series 2 |
John Deere 260 Troubleshooting
The
John Deere 260 Series 2 skid steer loader driveline system components: John
Deere 3029T three-cylinder turbocharged diesel engine with a rated power of 69
hp (51.5 kW), and 1-speed or 2-speed hydrostatic transmission. The hydraulic
system has a pump with a rated capacity of 21.3 gal/min (80.6 l/min) or 33.1
gal/min (125.3 l/min). The John Deere 260 Series 2 is equipped with a
vertical-lift loader boom, 100HD drive chains, and 14.00x17.5 standard tires.
The skid steer loader has a maximum lift height of 127" (3225 mm) to hinge pin
and dump height of 102" (2590 mm). The rated operating capacity is 2400 lbs
(1090 kg), and tipping load is 5000 lbs (2270 kg).
| Engine Troubleshooting |
Engine hard to start or won't start
Air in the fuel system - Air bleeding.
Fuel filter element is dirty - Install new filter element.
Fuel injection nozzles are faulty or clogged - Clean or replace injection nozzles.
Water or dirt in fuel system - Drain, flush, and service the system.
Improper valve clearance - Correct valve clearance.
Defective fuel injection pump - Change or repair the pump.
Engine starts but stops suddenly
Air cleaner is clogged - Clean or change.
Fuel filter element clogging - Clean or change the filter.
Poor fuel injection pump tightness - Look for any leaks of fuel pump, tighten it fast.
Fuel injectors are faulty or clogged - Change or clean fuel injectors.
Fuel injection pump damage - Change pump or rebuild it.
Engine shuts off suddenly during operation
Engine is not preheated - Normalize the temperature by warming up the engine.
Fuel filter element is clogged - Replace the filter element.
Air in the fuel pipes - Bleed the fuel pipes.
Dirty or faulty injection nozzles - If necessary, replace with a new nozzle.
Fuel injection pump timing is not adjusted - Adjust the pump as required.
Engine stops while idle
Low idle speed set incorrectly - Adjust low idling as recommended.
Fuel injection pump is faulty - Replace or rebuild injection pump.
Dirty or defective injectors - Clean fuel injectors or change it.
The valve clearance is not adjusted - Need to adjust valve clearance.
Diesel power loss
Dirty air filter - Install new air filter element.
Fuel injection nozzles are clogged or faulty - Clean or change injection nozzles.
Fuel injection pressure is wrong - Correct the pressure settings.
Valve out of adjustment - Adjustment procedure required.
Incorrect low idle setting - Need to adjust idle speed.
Clogged fuel lines or hoses - Clean fuel system lines and hoses.
Cylinder head gasket defective - Cylinder-head gasket replacement required.
Worn or broken piston rings - Replace the piston rings as required.
Engine is overheated
Low coolant level - Refill to the correct level and inspect system for leaks.
Low engine oil level - Need to add engine oil.
Radiator core is clogged or radiator cap is leaking - Replace cap or clean radiator.
Damaged or worn fan belt - Replace as required.
Diesel engine overloaded - Reduce load on the engine.
Insufficient oil pressure
Low oil level - Add oil as required.
Oil filter element is dirty - Replace or service engine oil filter.
Oil grade or viscosity is wrong - Use oil of proper viscosity.
Main bearing oil clearance is excessive - Bearing needs to be changed.
Oil pump malfunction - Inspect and change as required.
Engine noises or knocks
Engine oil level is low - Check and refill engine oil.
Engine is not fully warmed up - Warm up engine as required.
Fuel injection pump timing is not adjusted - Set the fuel pump timing correctly.
Improperly adjusted low idle speed - Normalize low idle speed.
Fuel injectors are faulty or clogged - Replace or clean fuel injectors.
Faulty or misaligned connecting rod - Need to replace or align the connecting rod.
Pistons are scored or worn - Pistons replacement required.
| Drive System Troubleshooting |
Drive system won't work in one direction or either direction
Insufficient hydraulic oil - Need to add oil.
Drive chain failure - Check drive chain and change faulty parts.
Relief valve defective or worn - Service or change relief valve.
Hydraulic filter or suction line is dirty - Service suction line or replace hydraulic filter.
Worn or damaged foot or hand controls - Repair or change.
Drive motor or pump failure - Check and repair if required.
Low power
Clogged hydraulic oil filter - Change or service hydraulic filter.
Relief valve is worn or opened - Replace or close relief valve.
Defective or worn transmission parts - Inspect and replace faulty parts.
Input drive shaft is defective - Repair or replace drive shaft.
Air leaks in hydraulic system - Bleed air from system.
Drive system keeps overheating
Insufficient hydraulic oil - Fill the system to proper hydraulic oil level.
Hydraulic fluid filter is clogged - Change or service hydraulic filter.
Relief valve is stuck - Repair or replace.
Defective drive pump or hydraulic motor - Check and repair if required.
Oil cooler is clogged - Cooling fins should be cleaned.
Drive system overloaded continuously - Load needs to be reduced.
Drive system is excessively noisy
Oil viscosity is incorrect - Use proper oil viscosity.
Air in the hydraulic system - Need to bleed air.
Hydraulic motor or drive pump failure - Repair or replace faulty component.
Worn or damaged mechanical parts of drive system - Check drive system and change faulty components.
| Hydraulics Troubleshooting |
Hydraulic system overheating
Hydraulic pressure is not correct - Adjust it correctly.
Main relief valve improper adjustment or failure - Adjust the valve or replace if necessary.
Hydraulic fluid is dirty - Fill up with fresh hydraulic fluid.
Hydraulic fluid level is insufficient - Add fluid to the hydraulic system.
Faulty hydraulic oil pump - Repair or change pump if required.
Lift arm does not lower or raise
Lift controls are faulty - Repair or change.
Hydraulic pump failure - Repair or install new hydraulic pump.
Hydraulic control valve is faulty - Install a new valve or repair it.
Defective hydraulic cylinder - Repair or install a new lift cylinder.
Low hydraulic oil level - Need to add oil.
Bucket fails to tilt
Bucket controls are faulty - Change or repair.
Hydraulic pump not working - Repair or install new hydraulic pump.
Hydraulic control valve is faulty - Install a new valve or repair it.
Faulty hydraulic bucket cylinder - Install a new cylinder or repair it.
Low hydraulic oil level - Need to add oil.
Bucket or lift arm runs slowly
Defective hydraulic pump - Check the pump capacity and replace pump if required.
Oil leaks from hydraulic cylinder - Install new cylinder seals.
Hydraulic fluid level low - Fill the system to proper hydraulic fluid level.
Hydraulic control valve is defective or set improper - Set properly or repair.
Hydraulic pressure loss - Set pressure correctly.
Bucket or boom movements are jerky
Hydraulic system is leaking air - Need to bleed air.
Dirty hydraulic oil filter - Clean or change the filter.
Dirty hydraulic oil - The oil must be changed.
Cylinder tube or rod is scored - Change defective component.
Hydraulic pump is noisy
Not enough oil or hydraulic system leaking - Remedy hydraulic leakage or refill oil as necessary.
Clogged hydraulic filter - Change or clean oil filter.
Plugged suction line - Service the suction line.
Air in hydraulic pump - Need to bleed air.
Pump components are faulty - Install new hydraulic pump or rebuild it.
| Electrical Troubleshooting |
Battery does not charge
Corroded or loose electrical wire connections - Tighten or clean connections.
Faulty battery terminal connectors - Install new terminal connectors.
Dead cell in battery - Change the battery.
Belt is damaged or loose - Belt needs to be adjusted or replaced.
Starter motor turns slow
Battery power is low - Low battery charging, charge as required.
Battery runs out quickly - Service battery or change it.
Disconnected cables or faulty battery terminals - Check cable connections and replace or service terminals.
Starter does not work
Battery is low or faulty - Charge or change the battery.
Wiring is incorrectly connected or disconnected - Inspect wiring and connect correctly.
Low battery voltage - Battery needs to be recharged.
Starter motor failing - Starter should be replaced.
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| SKID STEER LOADERS SPECIFICATIONS |