PTO

[EarnestHayes]

I am having trouble getting my mower to slide onto the pto. It will only go on partway and then stop. I have moved it around, jiggled it, cleaned it and greased it until I am blue in the face. Does anybody have any ideas?

Earnest Hayes

 

[k0ua]

I am having trouble getting my mower to slide onto the pto. It will only go on partway and then stop. I have moved it around, jiggled it, cleaned it and greased it until I am blue in the face. Does anybody have any ideas?

Earnest Hayes

Which of the three types of coupler do you have? Push button, pull back ring, or twist collar? Are you for sure keeping the coupler actuated until it is fully seated? Did you check for a burr on either the shaft or the coupler?.. Run you finger carefully on all surfaces.

 

[Rocky Hoffler]

Lubrication is your friend both shaft and locking mechanism

 

[EarnestHayes]

I have a push button coupler. It goes on partway and then stops. It stops just before it hits that part of the pto that has a dip on it. (I'm sorry I don't know the proper term for it. I have cleaned the pto off and didn't notice a burr. I can look more carefully. I haven't checked the coupler though. I'll try it. Thanks

 

[k0ua]

I have a push button coupler. It goes on partway and then stops. It stops just before it hits that part of the pto that has a dip on it. (I'm sorry I don't know the proper term for it. I have cleaned the pto off and didn't notice a burr. I can look more carefully. I haven't checked the coupler though. I'll try it. Thanks

Ok, please confirm that you are still pressing the button in all the way when you encounter the notch, then continue pushing until you can go no further, then let go of the button and gently pull back until the internal steel balls fall into the notch and you cannot pull the coupler off. if you absolutely cannot get it past the notch with the button pushed in , there has to be a burr somewhere.

 

[k0ua]

Also confirm that by looking at the end of the coupler, when you press the button fully, that all of the balls fall back into their recesses. Confirm this with the finger of the other hand if need be.

 

[JerryG]

The button type doesn't have balls. The shaft part of the button has a reduced area that lines up with the end of the PTO shaft so it can slide on. Then when the buttons shaft is aligned with the reduced area of the PTO the button comes back up to lock the coupler on the larger part of the buttons shaft.
Most couplers like that one will have to have button near flush to slide on.

 

[k0ua]

The button type doesn't have balls. The shaft part of the button has a reduced area that lines up with the end of the PTO shaft so it can slide on. Then when the buttons shaft is aligned with the reduced area of the PTO the button comes back up to lock the coupler on the larger part of the buttons shaft.
Most couplers like that one will have to have button near flush to slide on.

Your right. of course.

 

[Soundguy]

anything from the op?

 

[k0ua]

anything from the op?

Not since yesterday.

 

[gwdixon]

Well, this is kind of like k0ua's post.

When looking into the shaft's splined connection you should see one of the lands (deeper groove) obstructed by the pin.

Depress the pin until the land is completely clear of the obstruction. That is how much the pin has to be pushed to get it on. The pin is actually shaped like an hourglass.

Some pins have an enclosed "other" end with a little hole in it. If the pin won't depress far enough, then it may be clogged. Hose some WD40 (or similar) in the hole and follow it with compressed air. Check to see if the pin will fully depress now. If not, disassembly may be necessary.

A screwdriver with a blade tip can be run in the lands of the implement's PTO shaft and the drive shaft on the tractor. That should let you feel if there are burrs.

 

[EarnestHayes]

I have pushed the button in flush. I have checked the PTO for burrs. I haven't checked the attachment completely for burrs. I had to go to work today so I haven't checked out the entire attachment for burrs.

 

[gwdixon]

I have pushed the button in flush. I have checked the PTO for burrs. I haven't checked the attachment completely for burrs. I had to go to work today so I haven't checked out the entire attachment for burrs.

The button may be pushed in too far. That is why I recommended looking in the shaft to see how far it should be depressed to clear the blocking of the land.

The way I usually hook up the pin style is to push the PTO shaft on as far as it will go, then continuing the pressure, push in the pin. At the exact moment the pin lines up with the land then the shaft should slip on, usually too far.

Then let go of the pin, back up the PTO shaft, and the pin should snap into place.

 

[rutwad]

I have seen 2 different attachments my friends have had in the past and the PTO shaft itself would not slide freely. Probably not your problem but you can check to see that it does slide freely.

 

[Baby Grand]

It's not uncommon to get a piece of stalk or twig mashed into the implement end which will raise Cain with later hookups until it's removed - needle nose pliers or hemostats and a flashlight (and cheaters if you need 'em) can be a big help.

 

[Soundguy]

in one rare case i have seen a pin be able to rotate so that even pushed it is still warding the pto shaft groove. n that case, the yoke was worn, and not easilly repairable. I bolt now lives there. pull bolt out slide on.. put bolt in. not elegant. but was cheap.

 

[Capricious]

"..bolt now lives there. pull bolt out slide on.. put bolt in. not elegant. but was cheap..."


I have a slip clutch with female splines that came from the factory with a bolt & nut instead of a push pin.

 

[Soundguy]

deffinately cheaper to implement!

 

[JerryG]

If you do find out the button has a problem>
If your dealer services older tractors and equipment he should have a rebuild kit that has all the parts you need to fix it.

 

[Soundguy]

i remember when tsc used to sell the button and spring kit. not sure anymore.