John Deere 997 Seat Safety Not Working

[jshep1102]

Oh, the sweet taste of success. I figured it out!! I had a bad connection in the plug (circled in red on the pic) at the brake switch that prevented power from being fed to the PTO clutch and the fuel cutoff solenoid (green traces in the pic) when the brake was disengaged. The previous owner obviously didn't find this problem so he installed 2 jumpers to put power in places that fed these components. With the restoration of the leads going to the seat safety switch I fixed a couple of days ago, all wiring is now back to factory configuration and the mower works as designed.

Thanks to StarTech and Auto Docs for providing the schematic and some guidance in the troubleshooting. Without that schematic, I could have never developed a logical plan to troubleshoot. You guys (and this site) rock!

Now that it's fixed, the 700+ page service manual should arrive tomorrow. Money well spent for any issues going forward.

 

[Auto Doc's]

Oh, the sweet taste of success. I figured it out!! I had a bad connection in the plug (circled in red on the pic) at the brake switch that prevented power from being fed to the PTO clutch and the fuel cutoff solenoid (green traces in the pic) when the brake was disengaged. The previous owner obviously didn't find this problem so he installed 2 jumpers to put power in places that fed these components. With the restoration of the leads going to the seat safety switch I fixed a couple of days ago, all wiring is now back to factory configuration and the mower works as designed.

Thanks to StarTech and Auto Docs for providing the schematic and some guidance in the troubleshooting. Without that schematic, I could have never developed a logical plan to troubleshoot. You guys (and this site) rock!

Now that it's fixed, the 700+ page service manual should arrive tomorrow. Money well spent for any issues going forward.

Hello J.,

Thanks for the resolution and closure. We see way too many disappear, because they actually fixed them, or got frustrated and gave up.

 

[jshep1102]

That's okay as I will DL a copy of the TM2259 for my shop too since I don't have that copy here. GFP hasn't responded to me yet.

StarTech, I got the service manual for this mower now. Is there way to Direct Message you on this site?

 

[StarTech]

StarTech, I got the service manual for this mower now. Is there way to Direct Message you on this site?

Sorry the management chewed my backside out about using PMs so I had to disable them. There was propriety info that I was sharing only with the poster that I couldn't publicly disclose. That info was on a need to know basis. Not every Tom, Dick, and Harry on the web needed to have access to that info. And companies like Stihl have shut down some sites for releasing their dealer only info publicly.

Please understand....