116/111 John Deere PTO clutch problem

[BHD]

116/111 John Deere PTO clutch problem

when I go to click on the deck, with the electric switch on the dash, 90% of the time the deck runs, but on occasion it does not,

here is the puzzle to me, if I change the engine speed (throttle) slow it down and speed it back up the deck starts off, if the PTO switch is on.

I have checked the electrical connections,

but changing the engine speed will kick it on, (not it does not drop out when running),

any Ideas,

 

[Richard001]

Or your PTO switch is on the way to failure.

Richard

 

[BHD]

will check this out, on the adjustment, this is a new to me lawn tractor, the price was right, Free for hauling it off, put a new/used transmission under it and runs great, from a doner parts mower,
has a fairly new Kolhler replacement engine in it

 

[Dave M7040]

On most of these electric pto's, the wiring is opposite to what you would think.

12 volt + is supplied to the pto when the key is on.

The pto is engaged by providing a path to ground through the dash switch, safety switches and reverse relay.

There is usually a quick connector close to the pto. Pull it apart.

My suggestions bypasses all safety features so do at your own risk.

Keep toes back from deck!!!!
.
Provide 12 volt + into the quick connector on the pto side using a spade connector on either of the two terminals. It dies not matter which one

Connect a spade terminal to the second terminal inside the quick connect and, when ready to cut, clip it to the battery ground post using an alligator clip, or put a switch in the ground line and connect the wire to the - bat terminal. Close the switch to engage the pto.

If it works OK in this bypass configuration, you have a poor ground for the pto clutch.

Dave M7040

 

[crazyal]

Years ago I had a rider given to me that had a similar problem. At first it wasn't too bad so the guy just dealt with it. But as the problem got worse he gave up and just bought a new mower. It turned out to be the wires coming out of the clutch would flex a little. The clutch had a U shaped piece of metal that fit into a metal rod that would keep it from spinning. The clutch was a little loose so while the engine was running it would move a slight amount. Over the years the wire broke and didn't always make contact. Once it was turned on the clutch would push against the steel rod and stop moving which meant the wire stopped flexing and would make contact. Eventually it got to the point so it just didn't work. Might be worth looking at. I ended up soldering new wires onto the old ones and then epoxied the repair then used zip ties to keep the wire from breaking right at the electromagnet.

 

[BHD]

I adjusted the clutch, (I also had an extra clutch and checked it for adjustment and put it on), and it seems to be working better, (not sure if the plug is 100%), as I did have a stoppage, and unplugged and re plugged the connector in. and no problems after that.

 

[Dave M7040]

The one shocking part of the electric pto clutches is the cost of a new one. $300 to $400 seems crazy but that is Canada.

ebay.com is in the $100 to $150 range.

Dave M7040