john deer 310 se want stay in gear

have a back hoe that is giving me fits, I think ive got electrical issues, its not a power shift , has regular trains, just elelctric forward an reverser , can release the electric parking brake an play with it an the 4 wheel drive switch an wiggle all the wires everywere behind fuse panel an eventualy itll take gear for a few seconds then kick back out, seems that the forward an revese an parking brake share the same fuse, all fuses seem good an all relays do too, don't see a shift in forward an revese relay, just seen a pump relay, neutral relay,parking brake relay, an back up alarm relay. cant really get to top of trains to the shift silonoids to see what wires feed them to trace backwards to shifter or fuse panel, guess gonna have to tackle the directional shifter an see whats what an go from there.:Banghead

john deer 310 se want stay in gear