1800 PTO shaft

Ohio88

Member
Location
Fairborn, Ohio
We have tried the impact wrench trick and it did not help. When this shaft stops the PTO will only turn with the shaft so we must have splines in the pto clutch. It will not slide out. It is out 10 inches with about 2 1/2 inches of the PTO splines showing. Is it possible to remove the PTO housing cover with the shaft still in the tractor. Manual is on its way and we are done until after surgery.
 
Did you try just using a wrench on it instead of an impact? Like I said before,I never tried an impact,a wrench always does it for me. You can feel what's going on when you do it by hand that way.
 
It sounds like you have done everything right so far.

I can quote from my White manual which I think would be similar to what you are dealing with on your 1800. I find it helps to study these things and usually the problem is fairly simple and has been over looked.

My manual states the following:

"To remove pto drive shaft, first remove cover or the engine rpm pto output shaft, if so equipped, from upper bearing bore of pto housing. Remove snap ring from inside diameter of pinion. Install puller assembly" (gives a white number) "or a 1/2-13 inch cap screw, and pull plug. Oil trapped in lubrication circuit will flow from pinion when plug is removed. Remove O ring then use a 1/2-13 inch cap screw at least 7 inches long," (I used a length of ready rod instead of cap screws as it gave more to work with.) "threaded into end of pto drive shaft and withdraw pto drive shaft."

Those are all the instructions as pertaining to my white 2-105. I found turning the shaft on mine let it come out. According to the pictures there shouldn't be any other obstructions other than slipping through the splines.

I can't imagine the shaft would be bent and binding somewhere.

On mine it drives the pinion shaft that drives the pto, turns the hydraulic pump drive and fits into a hub in the back of the engine flywheel. It passes through the hollow input shaft in the transmission, over under drive shafts and clutch plate.

So it must be hanging up on splines somewhere. I wonder if the splines have gotten badly worn or twisted which go into the hub behind the flywheel and are causing the shaft to not slip through the next set of splines. If that were the case removing the pto housing might not help if it has to go through a drive that drives the hydraulic pump.

To remove the entire pto housing there are bolts and a couple of dowels which hold it to the rear frame of my white. It is very heavy so you would need a hoist to support it when you slipped it off the dowels and I would think the whole unite and the long shaft should come straight out with it unless yours drives the hydraulic pump and won't pass through those splines because it is damaged. However it should come out of the pto pinion and be left sticking out the back of the rear housing if that were the case. You could still have a stuck shaft if it is stuck in the hydraulic pump drive.

You will need to be very careful to not bend or damage the shaft or get hurt in the process of removing the pto housing.

I wish I could come up with a solution that would help you more but so far that is about everything I can think to suggest. Maybe your 1800 is different than my 2-105 and I am missing something and someone else can give better advice.

John Schweibert is ingenuous when it comes to these tractors. I keep waiting for him to solve the problem. If my suggestions here are off base I am sure he will point out my errors which is always appreciated.
 
I wish I was there to help him too. I can't feature that the splines would be twisted where they go in the hub in the flywheel. If that was the case,it seems like it would come to a gradual stop and bind up so it was hard to push back in.
It's been a while since I measured how far apart those sets of splines are on the shaft. I did it once when Lee Little was having so much trouble getting his back in,but seems like he was hung up at about the same point. He finally had somebody with some experience with it come and do it and it slid right in.
I pulled the one out of my 2-105 that past summer and when that one come out and hit the first set of splines,it hit so solid that it would bounce right off. That one just took a steady pull while I turned it with a wrench. I don't know that you'd even want to be pulling too hard on this one if it's hanging up in the pump drive gear. It shouldn't take any effort at all to turn that gear,so just turning a fraction and trying again might be best. I'd about bet the farm that when that one hits the sweet spot it'll lay a person right over on their back if they're pulling too hard.
 
So let me clear up some issues. This shaft was new and when installed would not go in all the way. It laked less then an inch from going in all the way. Now they want to pull it out to see what is the cause. I have not seen this shaft out and the old one is at the other farm. But if I understand there are 3 sets of splines on the shaft. On set goes in the fly wheel. One set is for the Hydraulic pump and one set is for the PTO. When the shaft is pushed in as far as it will go the PTO and the shaft turn together. Once we start pulling it out there is a point when the PTO and the shaft will turn independent. We can pull it a little further and again the PTO and shaft turn in unison. Therefore I think the hydraulic splines are now in the PTO assembly. Shortly past that the shaft stops and will not go any further. Besides pulling turning and pulling we have tried using an impact to turn and pull together and turn then pull. Same with a wrench. By the way they said the old shaft came right out once they got it to pop loose at the start, just turn and pull and out it came. I am waiting on a manual for this. I will be laid up for some time as surgery is tomorrow. Thanks for all of your suggestions.
 
OK,I'm understanding a little better now. The last inch going in can be a bugger. I'm thinking there's possibly a little bit of damage to the splines in the hub. Turn it with a wrench so it's in as far as it'll go,then hit the end of the threaded rod with a hammer. Not saying slam it with a sledge hammer,but not a light tap with a tack hammer either.
Everything was good in my 2-105 when I had the engine out of it this past summer,but I still had to use a little persuasion the last inch when I put it back together.
I've put them back in with old shafts,new shafts,old hubs,new hubs and every combination. That last inch never seems to just slide right in without a small amount of force.
 
Ok so its a new shaft which doesn't want to come out. That rules out spline damage most likely.

Sounds like just a miss match of the splines where they pass through the clutch pinion with the splines which normally drive the pump.

After reading My Lund's post and since I was going to work I slipped out to the shed and got my shaft which is not back in the 2-105 yet and snapped a few pics along with a tape measure so it might be helpful to get an idea of where the splines are in relation to the end of the shaft that you thread the rod into. The rear end of the shaft.

43215.jpg


This is the end closest to the threaded hole in the back of the shaft which drives the PTO pinion.

43216.jpg


This is the second set of splines from the hole end of the shaft which drive the hydraulic pump.

43217.jpg


This is the end of the shaft which slips into the hub at the back of the flywheel. It's at the inner most end of the shaft when it's installed in the tractor. You note a little wear on these splines on my shaft but should still be ok I hope.

43218.jpg


This is a view of the whole shaft. I just dug it out and layed it on the tractor as it was freezing cold -21C with a strong NW wind.

Hope this gives you an idea of what you are working with. Take care of yourself after your surgery the shaft will still be there waiting for you when you are ready to tackle it again.
 

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