[Gompers]

Originally Posted by R Bedell

There are 2 different Wiring Diagrams for the 782. It depends on the Chassis Serial Number range.

Either way....AS A TEST....you can Temporarily run a Jumper Wire from the Battery Positive (+) terminal to the PTO wiring connector. This rules out any and all devices and wiring from the 12V source to the PTO.

If the PTO still cuts out by doing the above, then you have a bad PTO.

IF the PTO remains solid in function, then there is a wiring or device problem.

This is taking into consideration, that there is a good Ground Connection between the Battery Negative Terminal (-) and the Engine Block.

Let us know what you find.

Good stuff here.

Basic stuff, but have you checked the fuse? If it's blown, you likely have some other problem to troubleshoot as well (bad ground, or maybe a shorted field coil or something), but that will kill your PTO for sure.

A new PTO is kinda spendy (north of $200 usually), but good used ones are usually $75-$125.