18-Speed Powershift Transmission-Hydraulic-Axles Troubleshooting

SymptomProblemSolution

Transmission slippage

Riding clutch pedal

Remove foot from clutch pedal

 

Excessive load on tractor

Lower gear and/or reduce load

 

Transmission filter indicator light on

Change filter element or have your John Deere Dealer repair

Tractor will not move in any gear

Check for active diagnostic code

See your John Deere Dealer

 

Transmission malfunction

Remove and inspect transmission suction screen for metal particles or See your John Deere Dealer

 

Transmission drive line broken

Repair or have your John Deere Dealer repair

Tractor lacks power or moves slow

Transmission slipping

Have your John Deere Dealer repair

 

Transmission in too high a gear

Downshift to lower gear

 

Excessive load

Transmission in wrong gear for operating conditions

Transmission shifts too slow

Sticking clutch solenoid valve

Have your John Deere Dealer repair

 

Pump malfunction

Have your John Deere Dealer repair

 

Transmission filter indicator light on

Change filter element

Transmission shifts too fast

High transmission system pressure

Have your John Deere Dealer repair

 

Transmission requires calibration

See Powershift Transmission Calibration in General Maintenance and Inspection Section

Transmission shift quality changed

Transmission requires calibration

See Powershift Transmission Calibration in General Maintenance and Inspection Section

Transmission system overheats

Sticking clutch solenoid valve

Have your John Deere Dealer repair

 

Pump malfunction

Have your John Deere Dealer repair

 

Transmission filter indicator light on

Change filter element or see your John Deere Dealer to repair

 

Excessive load

Lighten load or use lower gear

Transmission alarm sounds and red stop engine indicator light on

Transmission filter restricted

Stop engine. Change transmission filter element

Excessive transmission noise (Under load or no load)

Parts worn or damaged in transmission

Have your John Deere Dealer repair

Excessive tractor vibration

Transmission or transmission pump malfunction

Have your John Deere Dealer repair

 

Parts worn or damaged in transmission

Have your John Deere Dealer repair

Excessive noise

Transmission pump malfunction

Have your John Deere Dealer repair

 

Excessive backlash in gear train

Have your John Deere Dealer repair

CommandCenter™ hydraulic display icon appears

Axle filter is restricted

Replace axle filter

Entire hydraulic system functions are slow

Hydraulic filters are restricted

Replace hydraulic filters

Entire hydraulic system fails to function

Clogged hydraulic filters

Replace hydraulic filters

 

Oil cooler air passages clogged

Clean oil cooler

 

High-pressure internal leak

See your John Deere Dealer

Hydraulic oil overheats

Oil cooler air passages clogged

Clean oil cooler

 

Internal hydraulic leak

See your John Deere Dealer

 

Implement hydraulic load not matched to tractor

See your John Deere Dealer

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