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IH Cub LoBoy Serial number 22169 is what series

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79davecampbell
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IH Cub LoBoy Serial number 22169 is what series

Postby 79davecampbell » Sun Dec 24, 2017 11:49 am

I am trying to figure out exactly which LoBoy I purchased so I can buy the correct parts. The main drive shaft for the PTO broke and is now too short for the sleeve to reach, and engage. Very new and need help. Merry Christmas everyone.

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Re: IH Cub LoBoy Serial number 22169 is what series

Postby Barnyard » Sun Dec 24, 2017 12:22 pm

Yours could be a regular Cub Loboy or a numbered series with that number.
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Re: IH Cub LoBoy Serial number 22169 is what series

Postby Eugene » Sun Dec 24, 2017 2:30 pm

If the PTO is belt driven off the left rear side of the engine, it's a 1971, 154 Cub Low-Boy.
I have an excuse. CRS.

staninlowerAL
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Re: IH Cub LoBoy Serial number 22169 is what series

Postby staninlowerAL » Sun Dec 24, 2017 5:52 pm

If your tractor is a 154 Number Series, I have a parts tractor with the complete pto shaft assembly. Hamilton Bob's also has parts. I'm located in LA (lower Alabama). If yours is an offset cub loboy check with TM Tractor Parts or JP Tractor Salvage (forum sponsors). Links to their websites at the bottom of this page.
Stan in LA (lower AL)
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Re: IH Cub LoBoy Serial number 22169 is what series

Postby Glen » Sun Dec 24, 2017 7:00 pm

Hi,
The model name is on the serial number plate on a regular Cub LoBoy, unless the black is worn off the plate, then you can't read the words that were there, or someone could have painted over the plate in the past.
A regular LoBoy is offset, a numbered LoBoy is not offset.

Below is a page from the Cub parts manual showing a newer LoBoy in the lower pic, it gives the serial numbers there when they looked like that.

http://www.farmallcub.info/manuals/cub_ ... 000-14.jpg

Below are the PTO parts for an offset LoBoy at TM Tractor.

http://www.tmtractor.com/new/pt/pt_001newparts.htm

The PTO parts for a numbered LoBoy are different.

Below is a pic of a 154 LoBoy. :)
Attachments
Cub 154 2.jpg
Cub 154 2.jpg (21.25 KiB) Viewed 1206 times

79davecampbell
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Re: IH Cub LoBoy Serial number 22169 is what series

Postby 79davecampbell » Sun Dec 24, 2017 7:37 pm

Yes, mine is almost exact to the button pic of the top link.THANKS

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Re: IH Cub LoBoy Serial number 22169 is what series

Postby 79davecampbell » Sun Dec 24, 2017 7:42 pm

My problem is, I broke the main shaft the PTO shaft connects to. To turn the PTO. Must've ground the very end of that drive shaft because it's JUST short.

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Re: IH Cub LoBoy Serial number 22169 is what series

Postby Eugene » Sun Dec 24, 2017 8:05 pm

You can down load manuals, free. Quick Links top left of this page.

You will need the Operator's Manual, Parts Manual, and the Service Manual.
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Re: IH Cub LoBoy Serial number 22169 is what series

Postby Glen » Sun Dec 24, 2017 8:26 pm

Hi,
Below is a pic from TM Tractor of the rear end of the clutch shaft, it goes from the clutch at the rear of the engine, to where the PTO shaft meets it.
It only sticks through the rear bearing in the transmission a short amount. It has the PTO pilot bushing in it, you can see it in the pic. That bushing has to be good too.
If the clutch shaft is bad, you have to split the Cub in front of the trans to replace it. It is held into the trans at the front of the trans by a retainer plate with an oil seal in it.

I'm not sure if you have taken the PTO apart or not, it comes out the rear of the trans case.
If not, you can remove the trans oil filler plug, on top of the trans case, and look in the hole with a light and see the PTO shifter parts. It is easier to put the PTO together again looking in the hole also.

Below is the 1965 Cub and LoBoy owner's manual, it has lots of info about operation, maintenance, and lubrication. Everyone with a Cub or LoBoy should read it.

http://farmallcub.com/rudi_cub/www.clea ... index.html

The 2nd pic below shows the clutch shaft at the front of the trans. :)
Attachments
Cub trans shaft 7.jpg
Cub trans shaft 7.jpg (11.37 KiB) Viewed 1183 times
Cub trans 7.jpg

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Re: IH Cub LoBoy Serial number 22169 is what series

Postby staninlowerAL » Sun Dec 24, 2017 9:35 pm

79davecampbell wrote:Yes, mine is almost exact to the button pic of the top link.THANKS

Now that you've identified your LoBoy as offset you might consider posting in the FARMALL CUB forum. You'll probably get a lot more views and comments there. (This Forum is mainly for the Number Series: 154, 184 185.) There's several posts on repairing the PTO and related issues, try the search feature to find some of them. Also check out the HOW TO forum for additional information on the subject. Eugene has already pointed you to the manuals. Good Luck.
Stan in LA (lower AL)
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Re: IH Cub LoBoy Serial number 22169 is what series

Postby Eugene » Sun Dec 24, 2017 10:13 pm

There is a coupling between the PTO shaft and the rear of the differential. The coupling is shifted to engage both parts, connecting and disconnecting the PTO. My guess is that the coupling is shot.

Don't order any parts yet. Not a big job, take the PTO apart. If it's just the coupling, you will need it and the PTO shift lever. Both the coupling and shift lever are wear points/issues and the most common problems with the PTO.

There are a number of how to's on this site.
I have an excuse. CRS.

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Re: IH Cub LoBoy Serial number 22169 is what series

Postby Glen » Sun Dec 24, 2017 10:45 pm

Hi,
Below is a page from the Cub service manual showing the PTO assembly.

http://www.farmallcub.info/manuals/gss- ... 06A-07.jpg

Below is the service manual, the PTO is in section 6A.

http://www.farmallcub.info/galleries/ci ... actors.asp

Below is a pic of a new PTO clutch, from TM Tractor, the splines wear out, and the PTO won't stay engaged.
Also the pin on the PTO shifter lever wears, and that can cause it to not stay engaged too.
You can see the shifter looking in through the trans oil fill hole.
Attachments
Cub PTO clutch front.jpg
Cub PTO clutch front.jpg (11.81 KiB) Viewed 1143 times
Cub PTO 4.jpg

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Re: IH Cub LoBoy Serial number 22169 is what series

Postby John *.?-!.* cub owner » Sun Dec 24, 2017 11:05 pm

If yur problem is that the sleeve will not slide forward enough to engage the transmission shaft you may have a pin on the shift lever worn down inside the rear end, or the splines worn off in the coupling. You may also have a problem that the front retainer for the main transmission shaft is installed backward. In this picture it is the top bracket, if it is installed with the seal sticking out rather than being flush it will let the shaft slide forward nearly half an inch.
Image

You can check this by removing the transmission cover and using a small pry bar or a large screwdriver to see if the top shaft can be slid forward and backward a little. It needs to be in neutral and will take a pretty good push, but I have seen that happen more than once.
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Re: IH Cub LoBoy Serial number 22169 is what series

Postby Glen » Mon Dec 25, 2017 1:30 am

Hi,
Below is a pic of the retainer and seal from TM Tractor. The bulged side has to face toward the transmission, it holds the bearing that is supposed to be tight on the shaft into the case.
People do seem to put them on backwards, then the shaft can slide forward, like John said.
The seal would also be backwards, and not seal too good. The seal lip has to face toward the trans too.

Below is a listing for the retainer and seal at TM Tractor, with pics. It is a Case IH part, it says.
It looks like the style of them has changed a little from the one in the pic that John and I posted above, the front side is flat on the new retainer.

http://www.tmtractor.com/new/tr/431fp.htm

Here is a listing for the PTO shifter shaft. The round pin on the lower end of it stays in the slot in the PTO clutch. The pin can wear, and have a flat side, then there is play there, and the PTO won't stay engaged. :)

http://www.tmtractor.com/new/pt/317fp.htm
Attachments
Cub Trans seal.jpg

79davecampbell
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Re: IH Cub LoBoy Serial number 22169 is what series

Postby 79davecampbell » Mon Dec 25, 2017 2:10 am

Yes, you're about the clutch and pin but I can see the end of the shaft the clutch slides onto to engage the PTO. The end of that shaft is what is broke, but I don't know how to look THAT up. Thank You


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