Lost Pup 172 #1 Posted November 23, 2010 Well with my Tiller finally setup and running on the 417-8 I kept popping snap rings on the PTO stub shaft. I have never run anything on the Tractor PTO prior. Cause looks like the abuse of the previous PO, nice groove in the bell pulley from the brass rivets on the brake pad. Made up a replacement stub trying to match dimensions a bit. Picked up a new PTO bearing but did not install it but used it to dimension the stub shaft. Stub Shaft drops in then an allen wrench to insert and tightened the back side ( loctite added) bolt. Seems to be working ok at this point, tightened the PTO adjustment and the tiller worked at full load with no slipping. Age and use ( abuse) seem to have worn the various parts of the PTO assembly. Compared to my 418A the is a great deal of "jingle, looseness" on the setup. It took a bit of time to have the PTO bell push outward against the brake when disengaged. Share this post Link to post Share on other sites
Jeff-C175 7,199 #2 Posted September 28, 2021 I'm resurrecting this old thread because it's the first one that came up in my search for "PTO STUB". I discovered an issue with mine this evening. The snap ring wasn't in the groove and it was bent out of shape. Thankfully, there's a 'spare' snap ring on the inside whose only purpose is to prevent the stub from falling out when the hoop is moved over to change a belt or something. That INNER snap ring gets NO wear at all. It should be noted that snap rings have a SHARP edge and a dull edge. You can see it if you look closely. (Some of us 'old timers' may need a magnifier!) On the PTO STUB it's very important to install the OUTER snap ring with the SHARP EDGE OUT in order to prevent it from riding up over the ridge on the groove. The other issue is that the ridge on the groove in the stub can become worn, dull, rounded over slightly. In this case one could chuck it in a lathe and dress the groove to sharpen it up. Do these two things and one will find that the snap ring won't 'pop' for another 40 years! @Lost Pup <-- But yours is quite the elegant solution! Share this post Link to post Share on other sites
