ENGINE WILL NOT START OR IS HARD TO START

· Wrong engine oil viscosity.

· SRT Model: Reverser lever not in proper position.

· SST Model: Gear shift lever not in proper position.

· Engine throttle lever not pushed forward.

· Cold start system not being used, or malfunctioning.

· PTO engaged.

· Fuel shut-off valve closed.

· Stale fuel / improper fuel / fuel level.

· Plugged fuel filter.

· Plugged air intake filter.

· Dirty or faulty fuel injectors.

· Blown fuse.

· Electrical problem.

ENGINE RUNS ROUNG OR STALLS

· Fuel shut-off valve partially closed.

· Plugged fuel filter.

· Plugged air intake system.

· Fuel cap vent dirty.

· Faulty seat switch.

· Stale or improper fuel / fuel level.

· Dirty or faulty fuel injectors.

· Low coolant temperature. See your John Deere Dealer.

· Fuel pump not functioning properly. See your John Deere Dealer.

ENGINE KNOCKS

· Engine oil level low.

· Injection pump out of time. See your John Deere Dealer.

· Low coolant temperature. See your John Deere Dealer.

· Engine overheating.

· Idle speed too slow.

· Low coolant level.

· Cooling system needs flushing.

· Defective radiator cap.

· Defective thermostat.

· Defective water temperature indicator or sender.

· Low oil level.

· Loose or defective alternator belt.

· Do not operate at slow idle, operate at fast idle.

· Dirty grille, radiator screen, or radiator cooling fins.

· Plugged air intake filter.

· Operating at too fast ground speed for conditions.

· Improper type of fuel.

· Plugged air intake system

· Plugged fuel filter.

· Engine overheating. Operating at too fast ground speed for conditions.

· Engine oil viscosity too high.

· Low coolant temperature. See your John Deere Dealer.

· Improper valve clearance. See your John Deere Dealer.

· Dirty or faulty fuel injectors. See your John Deere Dealer.

· Injection pump out of time. See your John Deere Dealer.

· Attachment improperly adjusted. See attachment operator's manual.

· Improper ballast - adjust load.

· Rockshaft stop valve closed.

· Engine oil level low.

· Plugged oil filter.

· Improper type of oil.

· Oil leaks.

· Find and correct oil leaks.

· Incorrect engine oil.

· Plugged oil filter.

· Plugged air intake filter.

· Improper type of fuel.

· Low engine temperature.

· Defective thermostat. See your John Deere Dealer.

· Engine out of time. See your John Deere Dealer.

ENGINE EMITS BLACK OR GRAY EXHAUST SMOKE

· Improper type of fuel.

· Plugged air intake system.

· Operating at too fast ground speed for conditions.

· Dirty or faulty fuel injectors. See your John Deere Dealer.

· Engine out of time. See your John Deere Dealer.

HIGH FUEL CONSUMPTION

· Improper type of fuel.

· Plugged air intake system.

· Operating at too fast ground speed for conditions.

· Improper valve clearance. See your John Deere Dealer.

· Dirty or faulty fuel injectors. See your John Deere Dealer.

· Engine out of time. See your John Deere Dealer.

· Attachment improperly adjusted, causing drag on tractor. See attachment operator's manual.

· Low engine temperature.

· Restricted air intake system.

· Plugged crankcase vent tube or baffle.

· Loose or corroded connections.

· Defective battery - check electrolyte level.

· Dead cell in battery.

· Loose or defective alternator belt.

· Defective alternator.

· Low engine speed.

· Defective battery.

· Defective alternator.

· Loose or defective alternator belt.

· Loose or corroded battery connections.

· Blown fuse.

· Low battery output - check electrolyte level.

· Neutral start switch faulty or not adjusted properly. See your John Deere Dealer.

· Key switch or starter faulty. See your John Deere Dealer.

· SRT Model: Reverser lever not in proper position.

· SST Model: Gear shift lever not in proper position.

· PTO engaged.

STARTER TURNS SLOWLY

· Low battery output - check electrolyte level.

· Low battery power - charge battery.

· Engine oil viscosity too heavy.

· Loose or corroded battery connections.

· Blown fuse.

EXCESSIVE TRACTOR VIBRATION

· Engine speed too slow.

· Drive shaft universal joint bearings worn.

· Throttle linkage out of adjustment.

· Park brake locked.

· Transmission oil level low.

· Transmission oil cold - allow engine to warm.

· Range shift lever in neutral position.

3-POINT HITCH FAILS TO LIFT

· Low oil level.

· Hydraulic stop valve closed.

· Excessive load on hitch.

· Hydraulic oil too cold.

· Hydraulic oil suction screen clogged.

· Rate-of-drop valve closed.

· Rate-of-drop valve set too slowly.

3-POINT HITCH DROPS TOO FAST

· Rate-of-drop set too fast.

· Load too heavy.

· Brakes out of adjustment.

· Worn or damaged brake linkage. See your John Deere Dealer

· Improper tire inflation.

· Steering linkage needs lubrication.

· Excessive play in steering. See your John Deere Dealer.

· Bent wheel spindles. See your John Deere Dealer.