Rusted Clutch/Brake Cross Shaft

Farmall Cub Forum -- Questions and answers to all of your Cub related issues.

Moderator: Team Cub

Forum rules
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
John47
Posts: 2
Joined: Fri Jul 13, 2018 9:01 am
Zip Code: 18445

Rusted Clutch/Brake Cross Shaft

Postby John47 » Fri Jul 13, 2018 9:19 am

Please excuse my first post if this question has been asked.
A friend has a 47 Cub that has been sitting for about 6 years. It started and ran after some initial TLC. My question relates to the brake/clutch cross shaft. It is rusted/frozen to the rear casting. We have tried PB Blaster, heat from a propane torch, a pipe wrench and the ever popular sledge hammer.

Does anyone on this forum have a suggestion as to the procedure to release this shaft from the casting?

I had an idea that maybe using an acetylene torch on the shaft might free it but it also might change the temper of the shaft. I guess if the torch can free it, it might as well be replaced.
Inspecting the throw out bearing push rod connection to the throw out bearing also looks to be also rusted. We tried to remove the cotter pin from the clevis pin and it is rotated in the wrong place. Since the clevis pin is also rusted in place we can not turn the pin. A dose of PB was liberally applied.
It appears the only way to get to the inside of the cross shaft is to remove the hydraulic lift mechanism. Am I correct? Is the final alternative the separation of the bell housing from the engine?
Thank you for allowing me to post on this forum.
Regards,
Dan Kahn

User avatar
Shane Nelson
501 Club
501 Club
Posts: 2728
Joined: Wed Nov 22, 2017 6:24 am
Zip Code: 27284
Tractors Owned: .
1947 Circle Cub #1447 (Arnold)
195? Cub
1970 International 140 (Norman)
1949 John Deere A
1972 Schramm Pneumatractor
1993 Ford 4630 W/Loader
1965 John Deere 110
1961 Cub Cadet Original
Circle of Safety: Y
Location: Oak Ridge, N.C.

Re: Rusted Clutch/Brake Cross Shaft

Postby Shane Nelson » Fri Jul 13, 2018 9:44 am

You can use an acetylene torch, it won't hurt it and it's been done many times on many Cubs. You can't get there from removing the touch control (hydraulics), it's solid underneath the touch control box. If you separate the tractor and work on it, be sure and read about separating the tractor and wedging the front end. Be careful if you do and remove the torque tube (bell housing) from the transmission, the rear of the tractor will have to be supported in some way.
God is good, all the time!
Circle of Safety

John47
Posts: 2
Joined: Fri Jul 13, 2018 9:01 am
Zip Code: 18445

Re: Rusted Clutch/Brake Cross Shaft

Postby John47 » Fri Jul 13, 2018 2:10 pm

Thank you for your reply. I have watched a YouTube video on separating the engine from the trans. Not the easiest but doable. Thanks for the heads up about the touch control. I would have taken it all apart and then discovered it was closed. I think I would have been quite annoyed.
I'll relay the idea of the torch as the method of freeing the shaft. I think the owners son has a torch he can borrow.

Thanks again.
Dan Kahn

staninlowerAL
5+ Years
5+ Years
Posts: 3270
Joined: Fri Oct 29, 2010 11:34 pm
Zip Code: 36558
Tractors Owned: Cubs: (3)'49's, (1)'52, (1)'57 IH Cub LoBoy w/FH, (1)'72 154 Number Series Loboy, '76 Longstripe w/FH, Mowers: C-22, Bush Hog 412, Pennington 59, Woods RM42CF, Woods 42, assorted FCub plows, planters, discs, etc. OTHERS: '49 AC B & Ind. Sickle mower, '61 AC D12 Ser 2, '52 8N, '56 Ferguson 35 Deluxe, '53 MM BG (offset), (2) '49 Avery V's, '51 JD M (regular), '56 JD 420C, with Blade and fire plow, '85 JD 850 (Yanmar) w/72" belly mower, '76 Yanmar 1500, Sears Surburban's, MTD's, Jeeps & other misc. "treasures"
Circle of Safety: Y
Location: AL (Southwest)

Re: Rusted Clutch/Brake Cross Shaft

Postby staninlowerAL » Fri Jul 13, 2018 3:29 pm

You should avoid trying to drive the shaft out by hammering on the end. That will cause the shaft to "swell" and greatly increase your problem.

User avatar
Glen
5+ Years
5+ Years
Posts: 2424
Joined: Mon Mar 19, 2012 7:33 pm
Zip Code: 00000
Tractors Owned: 1956 Farmall Cub with Fast Hitch, F-11 plow, Disc, Cultivator, Cub-22 mower
Circle of Safety: Y
Location: Wa.

Re: Rusted Clutch/Brake Cross Shaft

Postby Glen » Fri Jul 13, 2018 5:38 pm

Hi,
I guess you are talking about the shaft that goes through the clutch housing casting, and works the left brake.
If it is stuck, don't put a wrench on the flat piece of metal that the left brake rod attaches to, I think I saw a post on here where someone did, and broke off the flat piece of metal from the shaft.

If you split the Cub, you need to make 2 wooden wedges that will fit tight in the front axle pivot, and put in before splitting the Cub. Cubs have more weight on the left side, and can tip over when splitting them, without wedging the axle. Hammer the wedges in tight, and check them some during the work, to be sure they don't loosen.
The clutch throwout bearing holder should feel solid side to side, it has to hold the bearing in 1 position. There should be very little play side to side, on the top pin, visible in the pic below.
The pin and the holes in the bearing holder can wear, then the pin needs replacing. TM Tractor at the bottom of the page has them, they also have a new holder, but not the 1st style of holder, used in 1947, up to Cub serial number 32229.
The first style of holder seems to be hard to find, I have read on here. Other people have written on here that when the holes were worn on one of the 1st style holders, they had the holes welded up, and remade the holes the right size.

The material sticks out of a new throwout bearing 5/16", if the bearing it has is worn much, and you have it apart, I would put in a new bearing.
Below is a listing at TM Tractor for a new throwout bearing. The guys on here recommend soaking a new bearing in light motor oil for a day before putting it in, and grease the grease fitting also. The graphite material absorbs lube.

http://www.tmtractor.com/new/cl/378fp.htm

Below is a pic from TM Tractor of how they look under the Touch Control.
The 2nd pic shows inside the front of the clutch housing.
The 3rd pic shows the wedges. :)
Attachments
Cub clutch housing.jpg
Cub clutch housing 3.JPG
Cub wedges 2.jpg

inairam
501 Club
501 Club
Posts: 820
Joined: Wed Jul 08, 2015 10:24 am
Zip Code: 19342
Tractors Owned: 1948 with international 1000 loader
1949 with kub klipper belly mower.
1957 with c-2 mower & c-54 grader blade
1965 lo-boy with c-3 mower
1975 with homemade mower
Memberships: Rough and Tumble Engineers Historical Association;Chapter 8 IH Collectors; IH Collectors Worldwide
Circle of Safety: Y
Location: Glen Mills PA

Re: Rusted Clutch/Brake Cross Shaft

Postby inairam » Sun Jul 15, 2018 9:10 am

What I did was remove the paint from the shaft on the left side of the tractor opposite the pedals. Put some penetrating oil everywhere. Remove the set screws on pedals and oil inside the hole.

On the left side of the tractor drive the shaft IN toward the pedals. Make sure the paint is off of on the shaft. Oil more everywhere. If you hit the shaft with the hammer directly grind off the mushroomed end near the pedals. Use hardwood dowels (Home Depot I cut the dowels 6", 9", 12" lengths) to drive the dowel and shaft through.

Patience is key here. This is one of the least rewarding projects on the Cub in my opinion. Right up there with adjusting the clutch from the access hole.
When you only have 9 horsepower you need to know the names of all of the ponies!

AL Farmall Boy
5+ Years
5+ Years
Posts: 2130
Joined: Tue Aug 10, 2010 6:38 pm
Zip Code: 35111
Circle of Safety: Y

Re: Rusted Clutch/Brake Cross Shaft

Postby AL Farmall Boy » Mon Jul 16, 2018 12:59 pm

You can also use a brass drift to drive the shaft without mushrooming it.
Regards,
Chase
205-368-5339
ihfarmallrtr@gmail.com
:tractor: Like my page "Alabama Tractor Pickers" on Facebook! :tractor:


  • Similar Topics
    Replies
    Views
    Last post

Return to “Farmall Cub”

Who is online

Users browsing this forum: grnspot, WileysCub and 4 guests