P.T.O. grinding when not engaged.

[rustynuts]

Hi Looks like a great club has been formed here. Thanks for letting me in,now on to the problem! I just put in a new transmission clutch shaft and bearings and front seal. I mow with a 5 foot 3 blade belly mower I used it two days ago to cut about 3 acres and everything was going just fine and when I tried to use it here at the farm with out the pto running it sounded like it was trying to engage and grinding. So I opened up the tranny top and checked the bearings and opened up the fill hole and could see nothing wrong. So I cocked the lever guide a little forward and tightened it all back down that didn't work either. As long as the pto is engaged its a happy tractor so I took off the belt and used it with it engaged. Did I foul something up or over look something! Help a new member.......Please

RustyNuts

[rustynuts]

Yes I did change the clutch shaft when I did this repair.I almost forgot that

[John *.?-!.* cub owner]

There is a brass pilot bushing in the end of the transmission shaft that the pto shaft fits into. The transmission shaft you instaleed may not have had one or it may have been worn out if it's a used shaft.

[rustynuts]

It was a new shaft with a brass bushing installed. I pulled the pto shaft yesterday and I found the clutch grinding on the new shaft. It apears that some one before me had the bright idea to put a set screw and a flatten one of the splines to limit its travel or to make it easier to get the shifter arm easyier to get in place. I did not see this in any of the 4 manuals I have looked at. I'm heading for the IH dealer this morning to see what the mechanic thinks. Have you seen this before or is this how it is?

[Jim Becker]

The setscrew belongs there. You can barely see it in this drawing:
http://www.cleancomputes.com/Cub/Blue%20Ribbon%20Service%20Manuals/GSS-1411%20Service%20Manual%20for%20Cubs%20and%20Lo-boy%20Tractors/Section%206A%20-%20Power%20Take-Off%20And%20Belt%20Pulley/Page%2006A-05.jpg

And a reference to it here:
http://www.cleancomputes.com/Cub/Blue%20Ribbon%20Service%20Manuals/GSS-1411%20Service%20Manual%20for%20Cubs%20and%20Lo-boy%20Tractors/Section%206A%20-%20Power%20Take-Off%20And%20Belt%20Pulley/Page%2006A-08.jpg

[George Willer]

It was a new shaft with a brass bushing installed. I pulled the pto shaft yesterday and I found the clutch grinding on the new shaft. It apears that some one before me had the bright idea to put a set screw and a flatten one of the splines to limit its travel or to make it easier to get the shifter arm easyier to get in place. I did not see this in any of the 4 manuals I have looked at. I'm heading for the IH dealer this morning to see what the mechanic thinks. Have you seen this before or is this how it is?

What you found is as it should be. The set screw should not be tightened, but rather run in just far enough on the flattened spline to keep the collar from falling off during assembly. They're all like that. I prefer to use a little locktite on the setscrew to keep it from moving while in use.

[rustynuts]

I H mechanic took some more of the flattened spline off towards the back and I installed it with 2 gaskets . He seemed to think that bmaybe the new shaft was a little longer or the gaskets were a little thinner than the original. I tryed it yesterday and it worked great in and out . And then I broke the belt. Thanks for all the advise and what to look for on this cub !!!
RustyNuts