[rohrmann]

As in the photo I posted, the breaker that has the wire going to the hydraulic pump is the one to replace. The side of the breaker that has only one wire is the one from the battery, and the other side with two wires is the load side, one wire to the hydraulic pump and the other to the inside house or main panel. If you turn off your battery disconnect switch, and you don’t operate the hydraulics, there is no load at that breaker so you should be OK.