John Deere D170 wiring diagram wanted

FF230 · Tuesday at 4:41 PM

Looking for some help. Have a 10 year old d170. Blowing 20A fuse when trying to engage the mower deck. Just changed the pto switch yesterday. Mower runs and drives but blows fuse and will not keep blade running when you change it. PTO clutch? Tried to read the wiring diagram but it's fuzzy when you zoom in. I don't know what the parts are.

rocco611 · Tuesday at 5:42 PM

Sorry I don't have a better diagram. Here is a link to a YouTube video that may help

https://www.google.com/url?sa=t&source=web&rct=j&opi=89978449&url=https://www.youtube.com/watch%3Fv%3D5YsFcHqdeqk&ved=2ahUKEwj4pLzP5-eNAxWOEkQIHRdTNl4QtwJ6BAgwEAE&usg=AOvVaw2dj79hy09ZZXDc153doYq3

tomplum · Tuesday at 8:41 PM

FF230 said:
Looking for some help. Have a 10 year old d170. Blowing 20A fuse when trying to engage the mower deck. Just changed the pto switch yesterday. Mower runs and drives but blows fuse and will not keep blade running when you change it. PTO clutch? Tried to read the wiring diagram but it's fuzzy when you zoom in. I don't know what the parts are.

Unplug the connector at the top of the clutch and see if it blows then.

Richard001 · Tuesday at 11:30 PM

Here is the wiring diagram:

Richard001 · Tuesday at 11:40 PM

The 20 amp fuse goes to the voltage regulator. Could be a problem there.

Richard

Bronco82 · Wednesday at 7:10 AM

Highly recommend bypassing the seat safety switch. Yes, I understand it is a safety thing and should be left in use, but it's not always practical. My front yard has a steep incline that I actually have to sit on the fender for to mow.

I also disconnected the reverse override button. Another great help.

tomplum · 2025-06-12T00:41:29-0400

Bronco82 said:
Highly recommend bypassing the seat safety switch. Yes, I understand it is a safety thing and should be left in use, but it's not always practical. My front yard has a steep incline that I actually have to sit on the fender for to mow.

I also disconnected the reverse override button. Another great help.

Here's what you do Bronco. Get your self one of those lanyards for a jet ski and wire it into the seat switch. Clip it to your pants. I have a yard that's much the same but there ain't no way I'm tumbling down the hill w/ a running mower deck. It just might just save you.