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Sunstar/DA 1920 PTO bypass

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Hi all;

Wondering about the wiring to bypass the main wiring harness to test the front electric PTO in my DA 1920 (Sunstar) Kohler magnum, early years (exhausts out the front). I'm not getting voltage to the PTO, but before I begin replacing every last thing (already a new battery and PTO switch) and digging into every last ground, I'd like to confirm that the PTO works. The current wiring harness is a mess, as the previous owner hacked up a bunch of stuff, including safety switches. The PTO had been working, but now is not. It would be simple to wire up the battery to the PTO with a simple switch, but I don't know if the interlock module or relay is necessary. 

So, can anyone give me a quick overview of what the bypass could look like?

Also, any have a good schematic of the wiring, and not the wiring harness diagram that comes with the parts manuals?


Thanks all!


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In the "Downloads" sections of the site, there are Simplicity "Electrical Info Manuals" for years 1990 thru 2003.  I'd check the early manuals for the wiring schematic for your tractor.

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It could also be a bad interlock module.  That might give you fits.  Also, make sure the PTO clearance is adjusted properly.  As I recall .012 is ideal for the clearance.  Too much and it may not want to engage.


Edited by Brettw

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