3-Point Hitch Disconnecting 3 point tiller

   / Disconnecting 3 point tiller #1  

Cane Thing

New member
Joined
Jan 17, 2011
Messages
20
Tractor
Kubota L3940
I'm a newbie and have a basic problem: I can't get my tiller PTO disconnected! My brother in law started teaching me to use a tractor 2 years ago, and for someone who didn't know a PTO from a harrow, I guess I've come Long way - but!!! My brother in law left for Montana and I'm trying to fend for myself. I had some hand operations a few years ago, so he would hook up and disconnect the implements. I was doing OK for a while but hooked up the Sicma FTH on to my Kubota L3940 for the first time and now can't get it off!!! I can't push in the button on the PTO on the tractor side. I "gently" used a hammer and still got no movement. Is it too much stress on it? My procedure was to lower the tiller to be able to disconnect the PTO first but that didn't work so I was able to remove the center arm but still no movement from the PTO. I thought still too much stress on it - maybe.

Is the same procedure used for attaching and disconnecting all 3 point implements? That is, 1. Connect the lifting arms 2. Connect the PTO. 3. Connect the center arm and adjust it to get the right angle for the implement. ?? Then to take off you just reverse the procedure? 1. Take off upper/center arm. 2. Take off PTO. 3. Disconnect lifting arms. ?? I need some help and guidance. Thanks.
 
   / Disconnecting 3 point tiller #2  
All PTO shafts should have 2 pieces that slide onto each other, with LOTS OF GREASE. There should be at least 6" of play in the shaft, so it can be connected and disconnected with the device fully connected to the 3pt hitch. There have been discussions on cutting the shafts on this forum.

If all else fails, disconnect the 3pt hitch, then drive forward. The PTO shaft should slip apart. Then work on disconnecting it. I've tapped the pin with a hammer and/or used WD40. Usually once you loosen the pin, you will be able to hold it down with just your thumb as you slide it apart. BTW, the PTO splines should also be greased.

U-Joints should be designed to be oriented in only 2 directions, both pieces close together in the same direction, and both pieces farthest from each other in the same direction.

Someone might have their own opinion, but connect and disconnect in whatever order seems most logical (and doesn't get you squished).
 
   / Disconnecting 3 point tiller #3  
I'm a newbie and have a basic problem: I can't get my tiller PTO disconnected! My brother in law started teaching me to use a tractor 2 years ago, and for someone who didn't know a PTO from a harrow, I guess I've come Long way - but!!! My brother in law left for Montana and I'm trying to fend for myself. I had some hand operations a few years ago, so he would hook up and disconnect the implements. I was doing OK for a while but hooked up the Sicma FTH on to my Kubota L3940 for the first time and now can't get it off!!! I can't push in the button on the PTO on the tractor side. I "gently" used a hammer and still got no movement. Is it too much stress on it? My procedure was to lower the tiller to be able to disconnect the PTO first but that didn't work so I was able to remove the center arm but still no movement from the PTO. I thought still too much stress on it - maybe.

Is the same procedure used for attaching and disconnecting all 3 point implements? That is, 1. Connect the lifting arms 2. Connect the PTO. 3. Connect the center arm and adjust it to get the right angle for the implement. ?? Then to take off you just reverse the procedure? 1. Take off upper/center arm. 2. Take off PTO. 3. Disconnect lifting arms. ?? I need some help and guidance. Thanks.

Some of the buttons are stubborn and all of them are spring loaded to return to the locked (button extended) position. Is it going in when you tap on it? If not, you might want to gently tap the end with the button towards the tractor and try again. Then tap (or pry) away from the tractor and try again. It might be bound up. Was the spline shaft greased beforehand? If not, it should be. So should the lock button so it slides easily.

Your assembly, disassembly routine seems fine to me, I don't think that is your problem. Maybe a tool like a carpenter's clamp can help you push in and hold the button if you don't have the hand strength due to your operations. Good luck and keep us posted.
 
   / Disconnecting 3 point tiller #4  
Sounds like an opportunity to add to your collection of hand tools.
Like Tom wrote.
Get a C-clamp of appropriate size. Use that to hold the darn button down.
 
   / Disconnecting 3 point tiller
  • Thread Starter
#5  
Sounds like an opportunity to add to your collection of hand tools.
Like Tom wrote.
Get a C-clamp of appropriate size. Use that to hold the darn button down.

Got my c-clamp, and heading for tractor. I appreciate all the input! I'll keep you posted. BTW, pin didn't budge with the taps from hammer. I'm sure I didn't have enough grease. I'll spray first with WD40 and see if it loosens. Then grease
 
   / Disconnecting 3 point tiller #6  
+1 on disconnecting the tiller from top link and lift arm then pulling forward to allow the two halves of the PTO shaft to slide apart. Then you can get in there to diagnose the problem. This will also relieve any pressure on the shaft. Be careful not to tip the tiller over forward when you pull the tractor forward. Sometimes a tiller will put a bind on the PTO shaft just by the weight of the tines and running gear.
 
   / Disconnecting 3 point tiller #7  
I agree with unhooking everything else from the tractor and driving forward to separate the shaft into its two pieces. With only the one piece left on the tractor you can get to the pin and apply pressure much more easily.

The pin slides into a depression on the tractor's PTO shaft. That is what locks the tiller's shaft to the tractor's PTO output shaft. About halfway down the pin is a cut out area so that when the pin is depressed the cut out slides into the area of the depression and the tiller's shaft can then be pulled off.

It is essential that the pin can be depressed. Mud, a stone, rust, and who knows what else can cause the pin to jam. A hammer (or a bigger hammer as TripleR suggests) and a serious hose-down with WD40 should work. If the pin breaks they can sometimes be replaced. If not then the whole end U-joint with a new pin can be replaced for not much money. Tractor Supply and tractor dealers have the repair parts.

Don't be surprised if the C-clamp doesn't work well. Some of the pins slide though to the other side and the C-clamp will hold the other side closed.

Just know that you are not alone. It happens.

Be sure to let us know how it turns out.

Edit: DARN YOU TED!!! This happens to me all the time. Someone posts a better answer while I'm writing mine!!! :laughing:
 
   / Disconnecting 3 point tiller #8  
My hand strength is fading too. Having bought a brand new tiller, most of the PTO parts were all rusted up and the dealer did nothing or said nothing for this newbie. But since then I've found that if you get everything cleaned up and greased up it does go better. If you can rotate the the PTO shaft so that the "button" is up, you might try using a long punch of some type to get a shot at that button (on the tractor side of the shaft). And then if you can hold it down and pry with a bar of some kind you can back it off if it is rusted on. Cheers, despite your frustration. Mike

Yes there are smarter guys here than me ............thank goodness.:thumbsup:
 
   / Disconnecting 3 point tiller
  • Thread Starter
#9  
My hand strength is fading too. Having bought a brand new tiller, most of the PTO parts were all rusted up and the dealer did nothing or said nothing for this newbie. But since then I've found that if you get everything cleaned up and greased up it does go better. If you can rotate the the PTO shaft so that the "button" is up, you might try using a long punch of some type to get a shot at that button (on the tractor side of the shaft). And then if you can hold it down and pry with a bar of some kind you can back it off if it is rusted on. Cheers, despite your frustration. Mike

Yes there are smarter guys here than me ............thank goodness.:thumbsup:

No movement of pin! 3 point is off and PTO shaft extended out, so should be no pressure from that. Tried clamp and did it with space left on other side. I'm going to get punch and bigger hammer!!!
 
   / Disconnecting 3 point tiller
  • Thread Starter
#10  
No movement of pin! 3 point is off and PTO shaft extended out, so should be no pressure from that. Tried clamp and did it with space left on other side. I'm going to get punch and bigger hammer!!!

Still no movementh!
 

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