155D PTO Disconnect

[Bilgepump]

Can some one please descibe the secret to disconnecting the drive shaft from the PTO. it looks like something is broken or missing

Thanks
Phil

 

[tractordriver]

the retaining pins broke you have to push it in to release the pto shaft. Looks rusted on you may need brute force.

 

[Bilgepump]

So I should squirt some blaster in there and try to tap tap it in so it can release?

 

[Bilgepump]

Here is a better description on my question. Do I tap/drive "A" in or do I tap/drive "B" out?

 

[204saskman]

id tap B in i think. Thats what it looks like to me. Its hard to tell. It that dont work, try it the other way

 

[California]

And just to confuse Bilgepump I'll vote for A. But I've never seen one exactly like it.

It seems to me they made that pin protrude so you could push it with your thumb and release the driveshaft. At least the Yanmar tiller connector looks similar and works that way. (But its pin comes out the opposite side with a smaller diameter and a cotter pin over there, so it's obvious which way it moves).

I suspect this is rusted in place but not broken. I suggest lots of PB Blaster. Then maybe hold a sledge on the opposite side (empty hole) and hit the pin. The sledge is to take the inertia shock, so you don't damage the pto output bearing.

 

[rhett]

And just to confuse Bilgepump I'll vote for A. But I've never seen one exactly like it.

It seems to me they made that pin protrude so you could push it with your thumb and release the driveshaft. At least the Yanmar tiller connector looks similar and works that way. (But its pin comes out the opposite side with a smaller diameter and a cotter pin over there, so it's obvious which way it moves).

I suspect this is rusted in place but not broken. I suggest lots of PB Blaster. Then maybe hold a sledge on the opposite side (empty hole) and hit the pin. The sledge is to take the inertia shock, so you don't damage the pto output bearing.

I must agree with California's advice, very good advice on how to!

Now from me, I have a similar Quick Connect Yoke on a Howse 4' rotary clipper. It rusted out like the one pictured.
The large hole (B) had a thin retaining plate that held the pin return spring in place.
The release pin was pressed from position (A).
I had no success punching the pin out on mine, rusted badly, the pin metal is soft and deformed internally whilst hammering.
I will suggest using a light weight hammer with punch for removal in hopes Shock will break the rust loose. To heavy of blows will deform the pin, which will leave you no option but to drill out the Pin, I had to drill mine out.
After drilling, I now use a bolt to keep the yoke in place.

What has me really in question is location (C), see attached picture. It looks to me if there is a second pin holding the yoke on. That must be verified.

I'll take pictures of mine as I use it now and will post them later today.

 

[careyo63]

This might help. I kept the shaft for parts and was going out to the shop anyway.
I had to rig it until they sent me the right shaft so don't laugh at my welding job it worked.Didn't mean for it to be in there.The right shaft they sent me the Cotter Pin broke off and dang near lost the Quick Disconnect shaft but found it a couple of months later but lost the Spring that is why it's apart.Oh....Oh NO a spring I had better stop before I turn BENKOHN on everyone

Stayed out of that one the best I could but do have something to say.Don't tell us Ben you did not know what Grey Market Ment and the D.I.Y even with some parts that goes with it. The people on this Forum are here Only to try to HELP other Yanmar Owner's and they are D_ _ GOOD AT THAT. F.O. Well I tried those Dang springs

 

[rhett]

WOW careyo63,
Thanks for the pictures, the first shows about what the pin looks like and the side it comes out of. Drilling a hole in it and using a cotter pin and washers to keep it in place is a great idea if "Bilgepump" can hammer his out. I could not hammer mine out so I drilled the larger diameter hole all the way through and use a bolt as the pin now.

You really threw me off base with the "BENKOHN" rant ... LOL ... found and read the thread to find out what you were writing about and now understand.

LOL, mine did have a "spring" in the larger hole opening that was still there when my problem occured... RUST. Actually the spring had almost completely transformed into RUST, which I found after removing the retainer plate.

I will assume a picture of my bolt replacement is no longer needed since there are enough pictures to understand what I'm now using to get the job done.

Again, California's suggestion to use a sledge hammer for Bucking while trying to hammer out the pin should not be over looked.

The possibility of a second pin should also not be over looked.

wheww, I hope things work well for you "Bilgepump". Try to scrape out as much rust/dirt from the large hole (B) before trying to punch the pin out... use penetrating oil too..

Good Luck

Edit: sorry for adding this butt, Ben's Yanmar is a Domestic model and John Deere dealers across the US are supposed to support him I think? Kinda dumb of him to insult the BEST Yanmar Support of Domestic and Grey models over a spring he could match up at a local parts house or modify one to work. If there is a tension adjustment it should be very easy to accomplish at a friendly parts counter. Again my appologies for going off topic here.

 

[Bilgepump]

Okay No laughing.. I tapped tapped on the "A" side and nothing...so I turned around and tap tap on the "B" side and no resistance with spring push back. I had assumed that the pin sticking out was the end that pushed in to release the PTO. I have no Idea how someone snapped off the pin 3/4" deep in the yoke, but to my suprise when I pushed in on the pin with a small punch inside the yoke and pulled on the yoke ,she slipped off like butter on a hot knife. Thanks to all with your responses, it made me look at it from all different ways. Now ...any recommendations as to a bush hog for this small unit (15 HP) This is my first tractor and I am a quick learner but needless to say there is nothing better than experience