Hi Everyone,

I have a TM15S (1980 24volt)that take off like a snail, and when the double contractor kicks in it hauls butt(jumps)for a second, but then drops out like it over loads. The happen's in both forward and reverse. Up on blocks everything works as it should. It seems like a thermal trip? I'm stumped on where to start! Any help sou be appreciated.

I bought a service manual from holt out of California for $148. It only has wear troubleshooting in the hydraulic section. It has repair and diagnostics, but I would have to disassemble everything?