HELP! Howard Rotavator pto shaft

[chasehalvy]

I have an old Howard Rotavator Selectatilth that is missing the pto shaft and slip clutch. Does anyone know where I could find one? The shaft coming out of the gear box is 1.5" and has 10 splines.
Also if anyone know what model this is that would help. The factory tag is missing. There is a date stamped on it, 1968.

 

[bmaverick]

I have an old Howard Rotavator Selectatilth that is missing the pto shaft and slip clutch. Does anyone know where I could find one? The shaft coming out of the gear box is 1.5" and has 10 splines.
Also if anyone know what model this is that would help. The factory tag is missing. There is a date stamped on it, 1968.

WOW, this is from the 1960s. I was on another tractor forum and someone actually has the K91 out of the Howard 350 model.
Freebies

There was a Howard owners group when Yahoo groups existed. All of that valuable info is now long gone.

If you knew more of the PTO dimensions, RJ Link in Rockford can make you a new one. They make all kinds of Ag and off-road PTO splined shafts and gearboxes.

Manufacturing Capabilities – RJ Link International, Inc.

www.rjlink.com

 

[bmaverick]

I have an old Howard Rotavator Selectatilth that is missing the pto shaft and slip clutch. Does anyone know where I could find one? The shaft coming out of the gear box is 1.5" and has 10 splines.
Also if anyone know what model this is that would help. The factory tag is missing. There is a date stamped on it, 1968.

OK, do you know what thread size is on the gear box? Is it left or right threaded?

From the looks of things, A splined PTO shaft on one end and the threaded hole interface on the other will get you going once again.

 

[bmaverick]

Ever-Power has products like this. Any of these workable?

Splined dimensions for PTO drive shafes

PTO Drive Shafts, You Can buy good quality PTO Drive Shafts - We are PTO Drive Shafts exporter & PTO Drive Shafts manufacturer from China market,Buffer inflatable packagingequipment manufacturer

www.ever-power.biz

 

[bmaverick]

ah ha, found the 10-spline tooth configuration info,

So buying something like this, and have a shop cut a pocket in the back to tap the right threads would work!


The hole with tap thread should match the Howard then.

 

[chasehalvy]

Bmaverick, thank you for the information. The threads are right handed. From some other research I've done, it sounds like it's more of an automotive application where you have a 10 spline yoke with a castle nut.
I'm starting to think I may have to go the route of getting something machined if I can't find the actual part. But if I go that route, I may just have them machine me an adapter to from the 10 spline to the typical 540 6 spline shaft now days. That way it's easier to find parts.

 

[bmaverick]

Bmaverick, thank you for the information. The threads are right handed. From some other research I've done, it sounds like it's more of an automotive application where you have a 10 spline yoke with a castle nut.
I'm starting to think I may have to go the route of getting something machined if I can't find the actual part. But if I go that route, I may just have them machine me an adapter to from the 10 spline to the typical 540 6 spline shaft now days. That way it's easier to find parts.

I like your thinking.

I can find 10 spline to 6 spline shaft couplers on the web all over the place.

 

[bmaverick]

I have an old Howard Rotavator Selectatilth that is missing the pto shaft and slip clutch. Does anyone know where I could find one? The shaft coming out of the gear box is 1.5" and has 10 splines.
Also if anyone know what model this is that would help. The factory tag is missing. There is a date stamped on it, 1968.

Oh, I just found out Howard is a 50min drive from me in the USA.

Ouch, website shows 404 error.

http://www.kongskilde.com

 

[bmaverick]

More digging on the WayBackMachine has this from 2018,

Howard became KongSkilde. Then acquired by CHH and placed into the New Holland Ag group.

 

[bmaverick]

OK there is something wrong at the top level of their website. I got in via a web serach.

https://www.kongskilde.com/us/en-US/en-US/Agriculture/Discontinued/Soil/PTO-Harrows

 

[bmaverick]

Hey after some poking around, I found the discontinued rotovator area,

https://www.kongskilde.com/us/en-US/Agriculture/Discontinued/Soil/PTO-Harrows/Older-Rotavators/Howard-Rotavators

Yes, click this link, then at the bottom, download those pull down manuals. Compare them to your machine. Likewise the Parts Manuals too.

 

[chasehalvy]

I like your thinking.

I can find 10 spline to 6 spline shaft couplers on the web all over the place.

Will you send me a link to one? I've looked and haven't found one where the 10 spline female end is 1.5" diameter.

 

[bmaverick]

Will you send me a link to one? I've looked and haven't found one where the 10 spline female end is 1.5" diameter.

so you are saying to up size this to 1.5?

 

[chasehalvy]

so you are saying to up size this to 1.5?

View attachment 858720

Yes. The existing shaft on the tiller is 1.5".

 

[TractorTech]

I believe that is a model E. I will look at my books tomorrow.
Missing the steel gauge wheel

 

[chasehalvy]

I believe that is a model E. I will look at my books tomorrow.
Missing the steel gauge wheel

Thank you.
Yes I think it is the E50 because it has a 50" till width and over all width of 62". I wish the factory tag was still on it. Yes the gauge wheel is missing.

 

[bmaverick]

I believe that is a model E. I will look at my books tomorrow.
Missing the steel gauge wheel

I saw a Model E, but the 3PT hookup was slightly different from what he had. Yet the remainder seemed similar.

Yes, please do look it up. I'm curious too.

 

[TractorTech]

E Series II. Series 1 had a 1 speed gearbox only.

 

[chasehalvy]

E Series II. Series 1 had a 1 speed gearbox only.

I just found a serial number stamped on the staytube, 6375186. In one manual it had series numbers compared to serial numbers. So given that serial number I think it is a series IV. Correct me if I'm mistaken. See picture.
Again thanks for all the help.

 

[chasehalvy]

SOLUTION. I ended up having an adapter machined to go to a typical 6 spline shaft. Then added a shear pin.