John Deere 6220 HELP NEEDED

[horse97]

I have a JD 6220 and when you start it it runs but the triangle warming light comes on right away and put if you put it in gear and in forward or reverse it wont move.i replaced the whole forward reverse assembly and it still don't move.Please if anyone can help Dealer driving me broke

 

[jd110]

There are quite a few things that could cause this. Without checking error codes to point you in the right direction, it is only a guessing game. I assume you have a powerquad transmission with left hand reverser? I guess the most frequent problem I have seen is the transmission pressure sensor goes bad. Sensor in question is #7 in diagram, part # RE212876. You mention dealer running you broke. Has he checked codes? If so find out what codes he found.

 

[horse97]

I first had a problem with The front wheel drive button kept blinking when it was out of 4 w/d the lite stays on when in 4 wd then the problems started, then it won't move. The codes i got up are BCU 302086.31,BCU 302123.31,EPC 306027.31,EPC 306028.31,EPC 306042.31,,EPC 306043.31,EPC 306054.31

 

[jd110]

The BCU302086.31 is a circuit fault code for mfwd. Probably a broken or unhooked wire at mfwd solenoid under tractor. The BCU302123.31 is a fault code for the reverser lever. Could be a bad lever assembly or bad wiring between lever and BCU controller. EPC 306027.31-Reverse Solenoid Valve, Circuit Fault, could be a bad reverse solenoid or a bad wiring between solenoid and EPC controller. EPC 306028.31-Forward Solenoid Valve, Circuit Fault, same possibilities for forward solenoid. EPC 306042.31-Forward Switch Closed and Not-Neutral Switch Open, possible bad reverser lever or bad wiring between lever and EPC controller.EPC 306043.31-Reverse Switch Closed and Not-Neutral Switch Open, same possibilities for reverse switch circuits. EPC 306054.31-Clutch Pedal Switch Opened by Mistake, possible bad clutch pedal switch or wiring between switch and EPC controller. Please note that these codes can be generated if wiring is disconnected while key switch is turned on. I would recommend clearing codes and then see which ones come back when attempting to move.

 

[horse97]

I cleared all codes changed Hyd oil filter,tractor now movers forward but NO Reverse,Codes that come up now are EPC 306027.31,BCU 302086.31