Sometimes the manual doesn't have all the answers

[Summerpaws]

If the contacts close putting the two resistors in parallel the resistance should be 3.75 ohms.

Got it. I was going to remove the wires and test individually,

 

[Summerpaws]

Good Day: If your checks of all the external things does not provide the answer, you may have to carefully drill the rivets of the K8 to open it. Then you can see if things inside are in order, or overheated in a spot. POP rivet it closed if nothing found, or find short screws.

Seeing as I have a high voltage on terminal 3, to me, it is a definite cause and effect. Correct me if I am wrong, but to suspect K8, the voltages have to be correct...correct?

 

[Summerpaws]

KloppK, question. Can I do a real time voltage reading on either side of R12 and R13 under a 5K load? (or 4K). If the resistors and the contacts are good, I should get the same reading on both, correct? If the contacts were bad, wouldn't I get a different reading on R13?