Ready for Winter

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Ready for Winter

Postby Stanton » Wed Nov 20, 2013 8:53 am

My TC unit was leaking hydro fluid around the control valve. I had used a similar sized o-ring, but apparently, not exactly the right size. Ordered a replacement from TM last week and tore into it over the weekend. Mounted my blade yesterday and reworked some of my gravel driveway. As of now, no leaks. :{_}:

Put the tire chains on before putting her away and, you guessed it: I'm ready for winter.
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Re: Ready for Winter

Postby Bus Driver » Wed Nov 20, 2013 8:13 pm

It is highly likely that you already knew that the composition of the O-ring is crucial in addition to the size. No doubt many of the elastomerics of today were developed after the Cub came along. Not sure what was used originally, perhaps neoprene. Viton would be a good choice for petroleum products that might also be moderately hot, as hydraulic fluid can be. Viton is one of the more expensive materials. O-rings of EPDM are great for plumbing as they resist water and heat well. But they die quickly in the presence of petroleum products. Lots of the hardware store rings are EPDM.
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Re: Ready for Winter

Postby ricky racer » Wed Nov 20, 2013 8:23 pm

Most o-ring these days are made of Buna-N or Viton. Either will work well as the Cub Hydraulics never get that hot. Buna -N has been around for a long time, holds up well in hydraulic oil and is probably what originally came on the Cub.

Mounting the blade and chains is on my Thanksgiving weekend schedule of things to do.
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Re: Ready for Winter

Postby Bob McCarty » Wed Nov 20, 2013 9:28 pm

Stanton, This is the first year I've had a blade mounted before I needed to use it. Probably won't have enough to plow this year. :( Tonight is predicted to drop 2-4".

Bob
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Re: Ready for Winter

Postby randallc » Thu Nov 21, 2013 6:06 am

Bob, I remember when you said, "it's probably not going to rain cause we hardly ever get rain." What was it, around 12 inches the following week? Maybe you'll at least get enough snow to push it around with the blade.
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Re: Ready for Winter

Postby Mr E » Thu Nov 21, 2013 7:26 am

randallc wrote:Bob, I remember when you said, "it's probably not going to rain cause we hardly ever get rain." What was it, around 12 inches the following week? Maybe you'll at least get enough snow to push it around with the blade.


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Re: Ready for Winter

Postby Stanton » Thu Nov 21, 2013 7:48 am

ricky racer wrote:Most o-ring these days are made of Buna-N or Viton. Either will work well as the Cub Hydraulics never get that hot. Buna -N has been around for a long time, holds up well in hydraulic oil and is probably what originally came on the Cub.

Mounting the blade and chains is on my Thanksgiving weekend schedule of things to do.


Thanks Bus Driver and Ricky; not sure what the material was made of, but I'm thinking the size was the critical issue here. The ring I pulled out was just a fraction smaller than the TM one I replaced it with. Checked again Wed night (after working with it Tues) and still dry. So, hope that's the end of the leak.

Funny, I used the same off-the-shelf o-ring in my other Cub TC unit and not a leak at all.

Have a great week!
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Tractors Owned: 1947 Farmall Circle Cub, serial #2116
1948 Farmall Cub, serial #46066
1949 Farmall Cub, serial #65937
Cub-54 Blade
Cub-193 Moldboard Plow
Cub No. 23-A Tractor Disc Harrow
Grosshart Post Hole Digger
Prewitt Conversion Unit
McCormick-Deering No 100 Manure Spreader
Cub-22 mower
1945 Farmall H, serial #213,651
CCC 782, serial #715729
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