Looking for wiring schematic for Kobelco sk25sr

I have been dealing with a safety switch issue for awhile now. I have tried every thing i could think of , testing for grounds, proper function of switch , fuses, etc etc..... My next thought is maybe a bad sylonoid or possibly a broken wire. Any help would be greatly appreciatd

Kobelco
Model-sk25sr
S/N - pv09-22655

Thank you