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Farmall & IHC Tractors Discussion Forum
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Char-Lynn Power Steering Replacement Seals for SMT

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Smith1000

09-14-2006 18:31:35




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Just finished putting in new seals into the SMTA Char-Lynn torque generator. It has leaked for years (all over the engine). Whoever mentioned it on this board last weekend was exactly right. The seals I removed were round o-rings (it had the wrong o-rings in it). The replacement kit seals from Force America are the square o-rings and they fit precisely down into the depressions in the housing. Only needed 3 seals for the unit besides the 2 where the hoses go. There are 4 large housing o-rings that it did not need because it is an older unit. The newer units need them it says.

Putting new seals in tightened up the shaft slightly. It can still be turned by hand, but is a little tighter which is probably normal. It clicks okay when turned.

The unit bolts up to a plate that has 2 gauges on it. There are supposed to be 3 bolts holding the unit to the plate, but one is gone and the threads in the hole in the unit are stripped out (for 1 bolt), so it only had 2 bolts holding it in place. I wonder if this is much of a safety issue? The 2 were holding it fine and I think if it were loose, I would hear it knocking around and the steering shaft would still be functioning okay. I am wondering if I should tap some threads in the stripped out hole for a new bolt? Any thoughts on this?

I am impressed with Force America. I ordered the seal kit Wednesday at noon (yesterday) and it arrived today (Thursday) at 5:00 PM.

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Smith1000

09-16-2006 06:17:57




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 Re: Char-Lynn Power Steering Replacement Seals for in reply to Smith1000, 09-14-2006 18:31:35  

I contacted Force America using this page:

Link

to find out if they had a kit for the char lynn torque generator unit I have. On the body of the unit, mine says MOD S 101 (P or F) can"t tell for sure. Told them it was on a SMTA. They e-mailed back and they have the kit. It is kit or part # 21122-000. The cost for the kit was $20.72. UPS shipping was about $10 on top of that, so it was about $30 all together.

To order the seal kit, I called 1-888-99FORCE which is 1888-993-6723 and asked for Parts. Paid with a credit card. They are located at 501 East Cliff Rd., Burnsville, MN 55337.

The kit is a Char-LYnn, Eaton kit and has 9 seals in it. There are 4 large seals in the kit for the unit body on newer units. I did not need these 4 large seals because the older units did not need them. I put 3 in the unit (both shaft ends and 1 as a body seal where it bolts up) and then there are 2 little ones that are for where the hoses attach. It will use 5 of the 9 seals in the kit. It is fairly easy to do, however the little allan bolts were very tight on it. I score a couple of lines in the paint across the body to make sure I could line everything back up right when I put it back together. Did this on both ends. The shaft seals that I took out of it where not the right ones for the unit which is why it leaked, no doubt. The kit has directions with a diagram of the entire unit and provides clear information about where each seal goes. The kit instructions say for No. 21122, Buna N (I don"t know what Buna N means. The instructions say the kit is from at Eaton Corporation, Hydraulics Division, 15151 Highway 5, Eden Prairie, MN 55344, telephone is 612-937-9800.

Hopefully, I have it all together right and I"ll put it back in the M today. It will sure be nice to have that leak stopped. I am going to clean all of the old fluid off the engine with some degreaser. That leaking has really bothered me for years and I always had to add power steering fluid. To add fluid, the hood had to come off.

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Duanes

09-15-2006 07:18:47




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 Re: Char-Lynn Power Steering Replacement Seals for in reply to Smith1000, 09-14-2006 18:31:35  
I would be interested in the kit number and Force number as well. How much was the kit?



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Allan In NE

09-15-2006 02:07:49




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 Re: Char-Lynn Power Steering Replacement Seals for in reply to Smith1000, 09-14-2006 18:31:35  
Smith,

I gotta stop and do that little job to my old H.

Where did ya go to get the parts and what was the kit number?

Allan



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