QA42 Snow thrower bearing?

[West Valley G]

Have spent the last couple winters working on a 125 with the goal of mounting the QA42 to it. I finally got it put together and the snow thrower mounted. ( Holy Smokes Gus, what a battle hooking it up was.) I ran it for a few minutes and could not get the PTO to disengage. Have ran the PTO quite a bit with mower deck but not with the thrower. Noticed it also chewed off the button on the lever arm that disengages it.

I just had this PTO off the tractor while doing an engine swap and all looked good and clean etc etc. I did not replace the bearing, maybe I should have?

My first thought was the bearing froze but thought I would run by the team in case I am thinking goofy.

Hope you all are doing OK..

Ken

[R Bedell]

My first thought was the bearing froze

That is what it sounds like to me.

[BKsCC]

Mine disintegrated the PTO button twice: Once the original felt one and once a bronze replacement one.

Since then I got it readjusted properly, but damn is it a fine line for mine between "Shuts it off" and " shuts it off and wears out the button". I throttle all the way down then pull the lever to disengage it so it's not wearing it out as quickly.

[West Valley G]

Good Info, thank you. Did you set distance on the button to the book, which
seems really tight to me. Something like 1/64. Or did you just take a educated
guess?

Ken

[BKsCC]

I did it by the book and it didn't work right, so it became lots of trial and error.

[West Valley G]

I will probably take this apart today anyway. But am curious if there
is a way to determine if the bearing is frozen up or if I am just not getting
enough pressure with the button to free up the clutch.
Will have to order button and wait on that but just thinking out loud.
One thing for sure, I will have to work around the snow thrower cus I
am sure as heck not going to take it off after the beating I took getting
it on.

Ken

[finsruskw]

There are a lot of contact spots in the linkage setup that wear from use.
Both ends of the rods where it goes through the levers, the holes in the levers as well as worn threads in the turnbuckle and on the threaded ends of the rods.
All of this adds up to the point where the proper adjustment is hard to set.
Best to have jam nuts on both ends of the t/buckle.
This alone will eliminate 2 of those points.

[West Valley G]

Pulled this PTO off yesterday and checked out the wreckage.
Near as I can tell, when I put it back together the last time. I got
the bearing just a hair back on the crankshaft leaving the crankshaft
just a bit proud of the bearing.
Seems like when in the disengaged position the thrust button on the
PTO must have been contacting the crank. Ooops
Whatever the cause it is certainly time for a rebuild. It ground off the
Fiber button on the lever, ground off the thrust button. And got the PTO
spring super hot and bent it to heck. Time to order parts.
All I know is the 10 seconds I had the thrower running it sure was
exhilarating. Everyday is a new day at school.

KenDSCN2401.jpg

DSCN2404.jpg

[West Valley G]

Hopefully someone can square me up here on parts for this PTO

In looking at this diagram and the PTO itself.

https://www.onlycubcadets.net/forum/showthread.php?t=9
It would mean I have an A style clutch with 1 spring.

When I look at the CC specialties parts it shows the A style kit with
2 springs and the B with 1. Am Also a bit puzzled at the value of the
kits since you can buy the part individually for quite a bit less.
Or else I am just looking at this wrong?

Ken

[R Bedell]

Have spent the last couple winters working on a 125

It would mean I have an A style clutch with 1 spring.

The 125 uses style B.