OMKV11661
Issue J0
Skid Steers
240
PIN (140001-)
250
PIN (150001-)
Using Troubleshooting Chart
Skid Steer
Park Brake
Engine
Electrical
Hydraulic/Hydrostatic System
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Troubleshooting
Using Troubleshooting Chart
If you are experiencing a problem that is not listed in this chart, see your John Deere distributor for service.
When you have checked all the possible causes listed and you are still experiencing the problem, see your John Deere distributor.
Skid Steer
IF
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CHECK
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Skid steer will not start
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Park switch not engaged.
No power to key switch or park brake - check fuse and battery.
No power to starter - check key switch, start relay, battery and starter.
Fuse blown.
Improper fuel.
Dirty or faulty injectors.*
Plugged fuel filter.
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Boom and bucket will not move
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Seat belt or seat switch not activated or not properly sequenced.
Park brake switch engaged.
No power to solenoid on port lock - check for power at solenoid on port lock, check ground.
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*See your Authorized John Deere Skid Steer Dealer.
Park Brake
IF
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CHECK
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Park brake will not unlock
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Seat belt or seat switch is not activated.
Park brake switch has not gone through the momentary down position (unlocked) - push switch down.
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Park brake will not lock
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Park brake switch is not in the up position (locked) - push switch up.
Malfunction of the park brake system.*
Malfunction of the park brake switch.*
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Can drive through the park brake while switch is in the locked position.
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Malfunction of the park brake.*
Malfunction of the park brake switch.*
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*See your Authorized John Deere Skid Steer Dealer.
Engine
IF
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CHECK
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Engine is hard to start
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Loose or corroded electrical connections.
Stale or dirty fuel.
Improper fuel.
Dirty or faulty injectors.*
Plugged fuel filter.
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Engine misses under load
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Stale or dirty fuel.
Improper fuel.
Plugged air cleaner.
Plugged fuel filter.
Dirty or faulty injectors.*
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Engine runs unevenly
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Fuel line or fuel filter plugged.
Stale or dirty fuel.
Improper fuel.
Loose electrical connections.
Air cleaner element plugged - check element indicator.
Dirty or faulty injectors.*
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Engine overheats
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Engine air intake screens plugged.
Incorrect coolant mixture.
Radiator fins plugged.
Engine oil low.
Coolant low.
Loose or defective fan/alternator belt.
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*See your Authorized John Deere Skid Steer Dealer.
Electrical
IF
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CHECK
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Starter does not work or will not turn engine
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Battery terminals corroded.
Loose connection at starter or starter relay.
Fuse blown.
Battery dead or low charge.
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Starter turns slowly
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Low battery output.
Engine oil viscosity too heavy.
Loose or corroded connections.
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Battery will not charge
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Dead cell in battery.
Low engine speed or excessive idling.
Battery cables and terminals dirty.
Fan/alternator belt loose or damaged.
Battery discharge circuit failure.
Low or no alternator output.*
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Lights do not work
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Fuse blown.
Loose or bad bulb.
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Battery discharge indicator light stays on with engine running
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Low engine speed.
Fan/alternator belt loose or damaged.
Battery has low charge.
Low or no alternator output.*
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*See your Authorized John Deere Skid Steer Dealer.
Hydraulic/Hydrostatic System
IF
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CHECK
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Low hydrostatic charge pressure
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Low oil level in reservoir.
Plugged charge lines.
Malfunction of charge pressure relief - replace relief.*
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Noisy system pump
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Oil level low.
Incorrect oil viscosity - replace oil and filter.
Suction line plugged.
Reservoir air vent cap plugged.
Air leaks at pump inlet line fittings.
Pumps not neutral centered and park brake engaged - neutral center pumps.*
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Low system pump oil flow, under pressure
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Plugged inlet line.
Low oil level in reservoir.
Air leaks at pump inlet line and fittings.
Relief valve partially opened.*
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No system pressure
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Bad relief valve.*
Plugged inlet line.
Worn hydraulic pump.*
Internal leakage in control valve or cylinders.*
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Boom arms will not rise or rise slowly
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Low oil flow from pump - plugged inlet line or worn pump.*
Low relief valve pressure.*
Control linkage binding.
Boom and bucket overloaded.
Cylinder shafts are bent.*
Boom arms are binding at pivots - lubricate linkage.
Bucket tilt valve spool is not returning to center position - binding.
Auxiliary hydraulic handle locked in detent position - return handle to neutral.
Gear pump damaged.*
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Bucket will not tilt, tilts back slowly, or tilts forward slowly
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Low oil flow from pump - plugged inlet line, clean or replace line.
Pump flow - rebuild or replace pump as necessary.*
Valve spool binding - free control linkage, centering spring damaged.*
Cylinder shafts are bent.*
Cylinder seals are leaking.*
Bucket is overloaded.
Auxiliary hydraulic handle is locked in detent position - return handle to neutral.
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Skid steer creeps forward or reverse
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Pumps not neutral centered and park brake engaged - neutral center pumps.*
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Skid steer loses power
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Check engine.
Dirty or clogged fuel/water separator.
Engine oil overheated:
· clean radiator
· allow to cool with engine at high idle
· limit transport distances.
Low charge pressure.*
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*See your Authorized John Deere Skid Steer Dealer.
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