PTO issue

[Snowturtle]

Yesterday I got the posthole auger stuck and stalled my Ford 3600 (diesel) before I could shut it off. I got it freed up and everything works fine but now the PTO won't completely disengage - the auger still turns slowly when the PTO is disengaged. It stops when I set it on the ground. And it works fine when I engage the PTO. What did I do?!

 

[Sean in PA]

It sounds like it has independent PTO and either the PTO brake was damaged or the PTO clutch disks warped when the incident happened.

 

[Fordfarmer]

It sounds like it has independent PTO and either the PTO brake was damaged or the PTO clutch disks warped when the incident happened.

I agree that that is what it sounds like... But did any 3600's come with independent PTO? I thought they were all either transmission driven or live.

 

[Snowturtle]

I don't believe mine is transmission controlled, It makes no difference what my transmission or clutch are doing. I have a lever on the left side to engage or disengage

 

[Sean in PA]

I don't believe mine is transmission controlled, It makes no difference what my transmission or clutch are doing. I have a lever on the left side to engage or disengage

And it doesn't grind when you move the handle to the engaged position with the engine running and the clutch out?

 

[Sean in PA]

Do you have the model number from the sticker under the hood?

 

[Sean in PA]

I'm wondering if it is something other than a 3600. Can you post some pictures of the tractor showing the front and rear axles?

 

[Snowturtle]

I'm wondering if it is something other than a 3600. Can you post some pictures of the tractor showing the front and rear axles?

I'll go get model number and take some pics then see if i can figure out how to post them...

 

[Snowturtle]

And it doesn't grind when you move the handle to the engaged position with the engine running and the clutch out?

No, as long as I back off the rpm's when I do it. It just slips right in and starts turning. But, that doesn't mean I'm doing it right! I just bought this tractor a year ago...

 

[Snowturtle]

Model number is CA213C. The plate is pretty faded and the camera on my phone is messed up so it's hard to see in the pic.
The PTO lever is just below the seat on the left side.

 

[Sean in PA]

CA213C is a 3600 with a diesel engine, live PTO and an 8 speed transmission, and the pictures agree. The symptoms you describe sound more like a tractor with independent PTO, not live PTO. The only thing I can think of is that the splines on the PTO shaft and/or coupler got damaged so that the coupler doesn't completely disengage from the PTO output shaft from the transmission, but it disengages enough that the splines are not actually engaged, but the spline between the shaft and the coupler are just rubbing each other.

Ar you sure that there's no grinding when you engage the PTO with the clutch out?

 

[Sean in PA]

BTW - the unit number 8M14B says that it left the assembly line on December 14, 1978 during the day shift.

 

[Snowturtle]

When I bought it, the seller, who had owned it since new, just reduced the throttle to idle and moved the lever - no grinding. But there's no guarantee that he was doing it correctly. Maybe things are worn enough that it isn't right? But it runs my post auger and my brush hog just fine. I will experiment with rpm's and clutch and see if I can notice a difference. I don't know between live PTO and independent PTO. This is my first tractor with a PTO, my only other experience is with old trucks and Jeeps where you had to use the clutch.

 

[Snowturtle]

My PTO does not disengage when the clutch is depressed, I know that much. I had the tractor in gear with the clutch depressed while I was drilling so that I could rock the tractor a bit to try to change the angle and bust up the hard dirt I was working in

 

[Sean in PA]

I don't know between live PTO and independent PTO.

Independent PTO is just that, totally independent of the clutch and transmission. Whenever the engine is running the PTO can receive power whenever you move the handle to the engaged position.

Live PTO uses a dual clutch. When it is properly adjusted and working properly, when you push the clutch pedal all of the way down, the transmission and PTO should both no longer receive power from the engine. You should only move the handle between the engaged and disengaged positions when the clutch is all of the way down. Then, when you let the clutch pedal up half way the PTO clutch engages and the PTO receives power, and then when you let the clutch pedal all of the way up the transmission clutch engages and both the PTO and the transmission receive power. It seems like yours might not have been adjusted properly to begin with, or maybe you weren't pushing the clutch pedal down all of the way when you were using the auger.

You can remove the round plate that the PTO handle is mounted to in order to see what might be wrong at the coupler and the two shafts that the coupler interacts with. Here is a link to the parts drawing for the PTO engagement pieces, which includes all of the parts that I mentioned above:

Parts drawing link

 

[Snowturtle]

Thanks! I'll work on it this weekend!