Bolts attaching front axel fell off

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Marvin
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Bolts attaching front axel fell off

Postby Marvin » Wed Feb 12, 2020 8:36 pm

I have two cubs. One is an A (1947) and the other is an F (1948). I used them both over rough ground last year and both had the bolts that attach the front axle to the frame shake out. Does anyone know what the correct size and thread that the bolts are? They were lost in the field before I knew it.

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Re: Bolts attaching front axel fell off

Postby John *.?-!.* cub owner » Wed Feb 12, 2020 10:02 pm

Are you referring to the bolts that hold the center pivot in in place?
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Re: Bolts attaching front axel fell off

Postby tmays » Wed Feb 12, 2020 10:07 pm

Curious to know what you mean by one is an A(1947)?
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Re: Bolts attaching front axel fell off

Postby Glen » Wed Feb 12, 2020 11:14 pm

Hi,
This is info for a Farmall Cub. I guess maybe you have a Farmall A also.

If you mean the bolts that hold the steering gear lower housing to the upper housing, there are 5 bolts in a circle that go in from below.
Below are pages from the Cub parts manual, showing the steering gear. The lower housing is number 21 in the pic.
It says at the description for 21 that the bolts that hold the lower housing to the upper housing are 7/16" x 1 1/4", 14 threads.

If you mean the bolts that hold the axle pivot pin in the housing, it says they are 7/16" x 2 1/4", 20 threads. All the bolts use lock washers. The 2 bolts for the axle pivot pin use nuts.

http://www.farmallcub.info/manuals/cub_ ... 005-02.jpg

http://www.farmallcub.info/manuals/cub_ ... 005-03.jpg

The bolts all need checking occasionally, and to be kept tight.

If you meant the bolts holding the lower housing onto the upper housing, I would put the bolts in and wiggle them in the threads, before tightening them, and check the threads for wear.
If they have been loose and someone was using it, the threads may be worn, and not hold much.
There have been people on here that needed to put in thread repair inserts, or replace the upper housing, because the threads were worn. :)

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Re: Bolts attaching front axel fell off

Postby Barnyard » Thu Feb 13, 2020 9:21 am

Post a picture of the location of what you are missing and we can pin it down.
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Re: Bolts attaching front axel fell off

Postby Gary Dotson » Thu Feb 13, 2020 9:06 pm

The "A" and the "Cub are both neat little tractors, but an "A" is an "A" and a Cub is a Cub. They are both, very much, supported on this forum but are very different tractors. Glen supplied the bolt sizes for the Cub but I suspect they will be larger for the A. I haven't encountered the front axle on an A. I'm sure someone here on the forum can help you with that.

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Re: Bolts attaching front axel fell off

Postby tmays » Thu Feb 13, 2020 10:16 pm

Well I’m not so sure he’s talking about an A. Trying to understand wha he does have. I’m sure he doesn’t have a F :lol:
His post reads A(1947) and F(1948). Don’t know what that means. Unless he has an A and one of the F series. But the axles would be completely different
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Re: Bolts attaching front axel fell off

Postby TWheat » Fri Feb 14, 2020 5:55 am

Casting Codes??

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Re: Bolts attaching front axel fell off

Postby tmays » Fri Feb 14, 2020 7:04 am

TWheat wrote:Casting Codes??

He says they are cubs, but those casting codes don’t match the years. 1947 is a Q code and 1948 is a R code. Of course it’s possible the coded parts have been replaced at some point and his serial numbers say 47 and 48. Guess we will just have to wait in a response. And bottom line is it really doesn’t matter what years and codes, we need clarification on what bolts he is referring to.
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Re: Bolts attaching front axel fell off

Postby Urbish » Fri Feb 14, 2020 7:23 am

tmays wrote:Well I’m not so sure he’s talking about an A. Trying to understand wha he does have. I’m sure he doesn’t have a F :lol:
His post reads A(1947) and F(1948). Don’t know what that means. Unless he has an A and one of the F series. But the axles would be completely different


I read this as he is talking about a Farmall A and a Farmall FCUB per the data plates. It seems that many people refer to an A as a Cub, probably because they grew up with an older family member erroneously calling as such.
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Re: Bolts attaching front axel fell off

Postby Urbish » Fri Feb 14, 2020 7:28 am

TWheat wrote:Casting Codes??


Each casting has a day, month, and (letter-coded) year cast right into it. It gets a little confusing because IH started reusing year letters codes in 1970. There's a chart from a reliable source here:
http://www.tmtractor.com/id/id_004.htm
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Re: Bolts attaching front axel fell off

Postby tmays » Fri Feb 14, 2020 9:39 am

Urbish wrote:
tmays wrote:Well I’m not so sure he’s talking about an A. Trying to understand wha he does have. I’m sure he doesn’t have a F :lol:
His post reads A(1947) and F(1948). Don’t know what that means. Unless he has an A and one of the F series. But the axles would be completely different


I read this as he is talking about a Farmall A and a Farmall FCUB per the data plates. It seems that many people refer to an A as a Cub, probably because they grew up with an older family member erroneously calling as such.

I think you’re probably correct
Thomas

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Re: Bolts attaching front axel fell off

Postby Stanton » Fri Feb 14, 2020 10:02 am

Marvin, good to have you post on the Forum. Welcome!

Here's a pic of a F-Cub and a Farmall A side-by-side. The A is about 1/3 larger than a Cub.
Image

Here's a couple pages from the Farmall A-B Parts Manual showing the front steering mechanism and the front axle:
http://farmallcub.com/rudi_cub/www.cleancomputes.com/Cub/A%20-%20B/TC-26E%20Parts%20Catalog/Page%2096.jpg
http://farmallcub.com/rudi_cub/www.cleancomputes.com/Cub/A%20-%20B/TC-26E%20Parts%20Catalog/Page%20102.jpg

Looks like the steering mechanism takes (2) 5/8" x 2-3/4" and (2) 5/8 x 3-1/2" N.F. bolts. The axle is held in place to the steering mechanism by a pivot rod.

Let us know if both your tractors are exactly alike (Cubs) or if one is slightly different than the other (an A and a Cub). Put another post on here and you'll have access to all the parts and owner manuals we have available on this site.
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Re: Bolts attaching front axel fell off

Postby Marvin » Wed Jan 27, 2021 4:14 pm

Just want to than everyone for their information and support. A tremendous asset for us beginners.

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Re: Bolts attaching front axel fell off

Postby tomstractor » Wed Jan 27, 2021 4:30 pm

Did we ever find out what he has for tractors? What bolts he needed?


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