Wiring diagram for an early serial number JD 757 Z-track

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I need a legible diagram for JD 757 Z-track I have been "unrigging" for a customer lately. Last 6 number of the PIN tag 022013 which makes this an early introduction model with the two separate wheel drive pumps.

The diagrams I found online are hazy and ineligible and I doubt they are correct.

I have to bypass the seat switch and remove the PTO line diode to make it operational, but I know this is not right and I will not let the customer take it like this for ethical safety reasons.

Currently I am fairly sure the PTO diode is bad and causing a possible power feedback issue.
 
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