willhoff
New member
I have a JD 6405 with a SyncroPlus Transmission. The transmission had 75 psi of oil pressure which is low. I pulled the transmission. Everything looks good so I put a new pump, seals, O-ring in the unit and put it back together. I started the tractor everything worked good. I shut the engine off and topped the transmission oil off then started the tractor again. It wouldn't move. I have zero oil pressure. I pulled the transmission again and everything looks good. Any Suggestions??