My 420 suddenly fell ill. No bucket movement at all, raise or tilt. Lap bar down and parking brake released activates forward and reverse but seems as though the control handles lock out. Any clues where to look other than the dealer?
I would say a safety switch is malfunctioning. Are there any lights that stay on, on the console?. Also pull the cab forward and check the hand control linkage.
No lights stay on. Seat belt switch at lap bar works as the parking brake sets if you raise the bar. Bucket is tilted full forward with front edge if bucket in dirt and arms lifted somewhat. Cab can't be tilted forward.