F935 PTO not engaging

B

billymagg

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CAEMI said:
If you're still looking for a 60" deck, I'll trade you mine for your 72" deck.
Click to expand...

I'd consider that, mine is in excellent condition, had the gearbox rebuilt and replaced the lower gear box pulley this spring, well over 300.00 Still retaining most original paint, some surface rust, but NO rust through or significant deterioration..

I would only be interested if yours is in similar condition. send me a phone and i'll give you a call and then send you some pics if you're interested.
 
BlazNT

BlazNT

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All the parts interchange from the 60 to 72" deck. So you can keep and things you want in the trade and just reinstall them on the deck you trade for.
 
BlazNT

BlazNT

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Ok since this is reopened I have the answer for this. It is hard to explain but I will try. Starting at the PTO engagement switch next to the seat. Flip that switch and it turns on the solenoid under the seat that moves a lever that pushes a switch that sends power to the PTO. If the solenoid is moving and the PTO is not coming on then adjust the rod coming out of the solenoid to the lever till it makes full contact with the switch. This is the stupidist design I have ever seen. I personally removed the solenoid and wired in a new togel switch to the PTO wiring. Very simple to do. The switch I used is a 6 wire switch wit an on-off-on. The wiring for the PTO is 4 wires and needs an normally open/ normally closed toggle switch.
 
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Jus10

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BlazNT said:
Ok since this is reopened I have the answer for this. It is hard to explain but I will try. Starting at the PTO engagement switch next to the seat. Flip that switch and it turns on the solenoid under the seat that moves a lever that pushes a switch that sends power to the PTO. If the solenoid is moving and the PTO is not coming on then adjust the rod coming out of the solenoid to the lever till it makes full contact with the switch. This is the stupidist design I have ever seen. I personally removed the solenoid and wired in a new togel switch to the PTO wiring. Very simple to do. The switch I used is a 6 wire switch wit an on-off-on. The wiring for the PTO is 4 wires and needs an normally open/ normally closed toggle switch.
Click to expand...

Ok, this is just odd...After running fine for nearly 2 years using the bungee cord described earlier, my pto will not engage again as of 6/17/16. It was running fine for at least an hour and then I decided to stop and get a beer with about 30 mins. left. Got back on and the pto decided not to engage. The solenoid moved but I guess it was back to not making full contact with the switch. I then pushed the solenoid a bit and it engaged for a little while and then went out on me. Now, no matter how much I push, the pto will not engage. And then you post this Saturday morning. I guess I'll look at adjusting the solenoid rod. Any tips for doing that? Also, any more info on the switch you used to bypass the solenoid would be greatly appreciated. Again, this is for a 1996 F911.

Thanks!!
 
BlazNT

BlazNT

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First I said the wrong thing about the switch. It is an On/On switch. So it is basically 2 switches in one. I only use the 4 outer poles. Normally open and normally closed. Flip the switch and it becomes normally closed and normally open.Her is the switch I al using.
http://www.ebay.com/itm/151844063518
I can take a picture of the switch under the solenoid when I get home to so you its position. The switch is no longer there but I can mark it for you. You can also test the pto by manually pushing the button to see if pto comes on.
WARNING WARNING WARNING. THE MOWER DECK WILL TURN ON AND SPIN THE BLADES IF YOU PUSH THAT BUTTON WITH THE SEAT SWITCH DISCONNECTED OR BYPASSED. DO NOT DO IF YOU ARE NOT SMART ENOUGH TO STAY AWAY FROM YOUR MOWER DECK. WARNING WARNING WARNING
 
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Jus10

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BlazNT said:
First I said the wrong thing about the switch. It is an On/On switch. So it is basically 2 switches in one. I only use the 4 outer poles. Normally open and normally closed. Flip the switch and it becomes normally closed and normally open.Her is the switch I al using.
http://www.ebay.com/itm/151844063518
I can take a picture of the switch under the solenoid when I get home to so you its position. The switch is no longer there but I can mark it for you. You can also test the pto by manually pushing the button to see if pto comes on.
WARNING WARNING WARNING. THE MOWER DECK WILL TURN ON AND SPIN THE BLADES IF YOU PUSH THAT BUTTON WITH THE SEAT SWITCH DISCONNECTED OR BYPASSED. DO NOT DO IF YOU ARE NOT SMART ENOUGH TO STAY AWAY FROM YOUR MOWER DECK. WARNING WARNING WARNING
Click to expand...

So, I went home during lunch and tried to extend the solenoid. You can see on the picture (hopefully) how far the nut moved. Now that I'm looking at it, I think I actually shortened it. I also removed the plug with the 6 wires. Should see it removed in the 2nd picture. When I did that, the mower will not turn over/start. I plugged it back in and it still won't turn over. So, I need to figure out what's going on with that too.

I now understand what button you were referring to. It's underneath that switch I pulled out.

Thanks for your help
 

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BlazNT

BlazNT

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My switch goes directly into the wiring harness you unplugged. I would bet that switch is bad and why it wont start. With an electrical tester check the switch for continuity. One set will have none and the other will have it. When you press the button it will flip flop. If it does not then the switch is bad. That is a cheep switch to replace for john deere standards.
Shortening it should be what is needed to make contact.
 
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Jus10

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BlazNT, I can't tell you thanks enough! I took the switch (AM128925) off and checked for continuity like you said. Sure enough, both sets were open. Bought a new one, $13, tested it and it worked as you explained. Back to mowing and don't need that bungee cord anymore.

Thanks again,
Justin
 
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Jus10

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Well...that switch just went bad on me again. Replaced it and mowed for a little bit, shut the mower off and now the new switch is bad. Anybody have any ideas what could be going on with this? Any suggestions are appreciated. Thanks!
 
BlazNT

BlazNT

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You could have a bad PTO. Check it for ground and power.
 
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