I lost all hydraulic function, was digging hole. I Released safety switch and got out of cab to check hole, when I got back in, engaged switch and nothing. I took safety switch off, I have 24 volts to switch, even did a jumper wire to bypass switch and still nothing. Is there a relay for this? If so where would it be and which on. I have several in panel behind seat. I also check 10a fuse and it was good. Any other thoughts or ideas. Thanks