Rear PTO Seat Override

[orlo]

Hi:

I have a chipper that I operate with my 2305 but I have to 'jump' the seat presence harness in order to run it off the machine. I don't mind doing this but it obviously is possible
to forget to 'unjump' the harness thereby turning off the presence safety when I hop back on the tractor.

I'm in the process of trying to fabricate a seat presence override that would reset when I drop the seat (to re-activate" by using a simple push off/pull on automotive switch. (I'd lift the seat, pull it up to override the presence switch) - When I drop the seat it would hit the switch and kill the override.

The problem has been finding just the right size switch and/or bracket to mount the switch.

What I'd really like to do is mount a 'defroster' like momentary but stay energized until turned off switch to mount on the dash. With this I could push it with the tractor on to set the override (ideally with a little indicator LED) but it would reset automatically when I turned the tractor off.

Has anyone seen any offering for this or have some great way to override it?

I could just put a switch to override it on the dash but I'd really like to make whatever I do so it would auto-reset back to the 'safe' position.

I've also thought about overriding the detection of the PTO clutch switch but I can't seem to find a nice wiring diagram to do this.

All ideas are welcome.

Thanks,

 

[trlong]

I am not familiar with the 2305 but, as far as I know, most of the seat presence switches are made to be disabled for just such a situation. Is there nothing in the manual about an override position on the seat switch, and a bail to keep the seat from hitting it? On the 4115, I flip the seat up, pull the switch up (I think...haven't needed it) , then cover it with the provided bail.

BTW, Welcome to the forum!

Tom

 

[dicker]

Hi

On the JD4310, using the rear PTO is covered in the manual under the heading "Using rear PTO (Operator off Seat)

I use this for my PTO generator.


Richard

 

[orlo]

Thanks for the advice. The 2305 manual states the PTO is not intended to be run without being on the seat - basically that they didn't want the liability or the expense of adding an override switch... I've just been jumping it with pins which work fine.

 

[RalphVa]

Do you have a seat button underneath the seat that will pull up? I suspect you do, and I suspect that it's identical to the one on the 4010, 4110 and 4115 and 790. It works on the 4110, 4115 and 790, but JD apparently screwed up the "Control Module" on the 4010 (and probably the same on the 2210 and 2305; it seems) to where pulling it up doesn't allow it to work.

I did a thread on this and haven't completed it regarding the seat button on my 4010. The above is what I know from that thread and information I got from the other TBN folks.

If the 2305's button is the same as the one on the 4010, here is what you'll find:

o The button normally is pushed down by the seat to complete the safety circuitry through the "control module". This circuitry is carried by red & red/yellow wires.
o The button will also pull up with the seat raised. The circuitry is carried by the blue & blue/white wires. However, the "control module" apparently does nothing with this.

So, what I plan to do on my 4010 button is this:

o Jumper the blue & red wires. You can do this with a short piece of wire right where the wires exit the button using snap-on type connectors you can buy at Radio Shack.

o Jumper the blue/white & red/yellow wires.

Break off the blue/white & blue connectors that are joined to the "control module" wires through a 4 wire junction that is plastic covered. This keeps the "control module" from getting confused by the jumpering you've just done. It allows button-down & button-up (called the "defeat" position) to do exactly the same things but not to communicate any of this to the control module.

Then just plug the junction back together.

Now, your 2305 may be different. Check out the wire colors, etc. and whether you have that black button that will also pull up.

If none of this works, you will not have lost anything other than to bugger up the wires on the seat button a tad, but it'll still work with the button down as intended. You can get another button for $27.18. I have a spare, a 4110 one that I bought that has a different part # than the 4010 but is identical to it.

I think JD just screwed up on the control module internals somehow, and the lawyers had them put in the 4010 manuals that the PTO can't be used without someone sitting in the seat. Sounds as though they've done the same for the 2210/2305.

If your button is the same as the one on my 4010 and 4110s, remove it by pulling down on it against some springs. This will allow you to put a 10mm wrench on the two bolts holding it in place. Remove the bolts and pull the button out. Then use a screwdriver to push the plastic keeper on the wire connector to disconnect it from the control module.

Ralph

 

[dicker]

Hi

That's too bad that the 2305 is not supposed to be used with the operator off the seat. It sure limits the amount of implements that this tractor should be able to power.

I just assumed that all tractors in the 20 horsepower and up range should be able to do this.


Richard

 

[RogerH]

The simplest way to get around your seat switch for stationary PTO work, yet leave it operational for safety is to just throw a weight on the seat. That is a purposeful action, so you aren't likely to have unexpected PTO engagement like could occur when the switch is disabled.

 

[orlo]

Thanks for all the tips. There isn't a complex switch setup like you describe on the 4010, just a simple two pole connector that goes to the seat. I jump it with a wire and I'm all set. Although I do like the idea of a weight - Obvious and unless someone was willing to sit on the weight virtually impossible to operate it without removing it.

I did some testing with my meter and I did find out that there are 3 wires going to the PTO switch (Top 3). When the PTO is off the outside two are closed, when it's up (on) the leftmost two (looking at the switch) carries 12vdc from the left (positive) to the middle. I was able to leave the outside two jumped and still operate the left two to engage/disengage the PTO relay.

I did decide though that this was more dangerous than bypassing the seat switch. With the seat switch bypassed I could operate the PTO (once started), and could accidentally put it in drive without causing the tractor to die, but I couldn't start it with the PTO engaged which I figure is the more dangerous of the two options.

One other thing I've thought about doing is mounting the switch on the only accessory (Chipper) that I'd want to use without being on the tractor - Kind of an emergency off switch. I'd just wire a two pole connector (Like a trailer wire harness) under the seat that I'd plug into to override it.

I've already way over-complicated what I need to do considering how often I use the chipper... /forums/images/graemlins/wink.gif

 

[JDFANATIC]

</font><font color="blue" class="small">(
I've already way over-complicated what I need to do considering how often I use the chipper... /forums/images/graemlins/wink.gif)</font>

Isn't that a normal reaction? /forums/images/graemlins/tongue.gif

 

[RalphVa]

You can put a weight on the seat or tie it down with some tension cords. You can also use a solid piece of plastic and tape the button in or down with tape. I've done all of these at one point or another.

What I'd really like to know from JD is WHY did they do this on the 2305 (and probably 2210?) and 4010.

Ralph