Case IH DX40 electrical problem

[dw3113]

When my DX40 is in 4wd, it blows the high/low fuse when you try to shift to high. It only blows in 4wd. Has anyone had this problem or does anyone have a wiring digram for the transmission and front end?

 

[klm]

When my DX40 is in 4wd, it blows the high/low fuse when you try to shift to high. It only blows in 4wd. Has anyone had this problem or does anyone have a wiring digram for the transmission and front end?

Well it's been over 20 years hope you got it fixed.
I need a wiring diagram too.