OMAR276030

Transmission Troubleshooting

Symptom	Problem	Solution
PST transmission vent between engine and transmission yoke leaks oil	Clogged transmission filter screen	Clean screen

IVT transmission external vent leaks oil

Clogged transmission filter screen

Clean screen

Transmission warning displays

Diagnostic trouble code has been stored

See PTI or PTP codes in the Diagnostic Trouble Codes section

PST Transmission skips gears

No problem

See Shifting the Transmission in Operating the Tractor section

Transmission shifts slowly and tractor steers hard

Cold oil

See Transmission/Hydraulic System Warm-Up in Operating the Tractor section

Transmission slips, shifts rough or abruptly (jerky) after oil change

Recalibrate transmission (PST only)

See Changing Transmission/Hydraulic Oil in the Lubrication section

Have dealer recalibrate

See your John Deere dealer

Transmission starts out too fast/slow

No problem

Start-up gear can be changed through the CommandCenter settings. See Shifting the PST Transmission in Operating the Tractor section. For IVT tractors, see Adjusting Set Speeds.

If problem persists, see your John Deere Dealer

OURX935,0000652-19-20081125