dies, all electric will be dead, then mysteriously works again

[rancher33]

XT70 will quit instantly, and all electric is dead. Then after fidgeting with anything that I can reach it sometimes will start back up. We originally thought it was a relay, but that doesn't seem to be the problem now. It doesn't seem to follow any pattern. Some of the time it will run a week without quitting, then some days it will do it five times a day. sometime when you lower the safety bar, but not always. I got the cab up last time and tried to find anything that would replicate the problem and got nothing. any Ideas?

 

[Tazza]

I'd start with checking and cleaning all connections around the battery, these can cause loss of all power.

 

[rancher33]

I'd start with checking and cleaning all connections around the battery, these can cause loss of all power.

We started at the battery, then went to the fuse and breaker box, I've replaced the ignition switch. We tried to trace avery wire that I can find. The only thing that seams to be anything is about ten percent of the time it will die when I put the safety bar down.

 

[Tazza]

We started at the battery, then went to the fuse and breaker box, I've replaced the ignition switch. We tried to trace avery wire that I can find. The only thing that seams to be anything is about ten percent of the time it will die when I put the safety bar down.

I guess its possible the safety interlock isn't working right, but usually it just locks you out, not shutting down the machine. Could the park brake or hydraulic lock solenoids be bad causing the power to be cut? i'd have expected a fuse to blow though.