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Case Tractors Discussion Forum
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Shifting with a hand clutch

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MattC

01-03-2008 15:38:03




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I've been restoring a 48 sc with a hand clutch (which i've never driven until today). I was able to find reverse and figured out how to back it out of the garage it's been in for a few years. Trouble is trying to go forward. Everytime I think I found first gear it goes to take off then the engine stalls out. Am I finding a higher gear maybe? tryed over and over and it keeps stalling out. any suggestions? Not really sure also how the gear pattern goes either. This was it's maiden voyage since I rebuilt the motor and hasn't been driven in atleast 20 years. And all I got was 30 feet backwards and maybe a foot and a half forward.

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Paul f

01-04-2008 05:15:46




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 Re: Shifting with a hand clutch in reply to MattC, 01-03-2008 15:38:03  
Just a thought...are you sure the brakes are released. Case brakes do not exert as much drag in reverse as they do going forward, which could explain why you can backup but stall out going forward (Especially if she is cold and you are in a higher gear)



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SC Dan

01-03-2008 16:42:50




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 Re: Shifting with a hand clutch in reply to MattC, 01-03-2008 15:38:03  
Look on the housing at the base of the shifter. On my '49 SC the gear numbers are embossed in the top of the cast metal transmission housing near the shifter boot. If the '48 is the same as the '49, this will tell you the shift pattern that you are wondering about. Also, regarding the way you shift them, it is an "H" pattern but it differs from the way a typical automotive "H" pattern works. With a typical automotive "H" pattern, to select a gear you move the shifter either right or left from the center neutral, then either up or down to select the gear you want. With the SC "H" patten, you move the shifter either up or down from center neutral, then to the left or right to select the gear that you want. Am I making sense?

Dan

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MattC

01-03-2008 17:03:05




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 Re: Shifting with a hand clutch in reply to SC Dan, 01-03-2008 16:42:50  
that H pattern makes sense. Was thinking also that the cold probably had a bit to due with it. It's 12 degrees outside and possibly not warmed up enough to be able to shift smoothly. Does that make sense? Or am I reaching? When I sit in the seat to the top left there is a 4 stamped there with the the letter R below it. I would assume the 4th gear is upper left with the reverse lower left. Now on the right side it shows me a 1, 2, 3 all ontop of each other or is that related to the pto lever? I understood the "tease" part while backing up. Went smooth once i got the hang of it. Just couldn't get it to go forward without a quick buck then stalling

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SC Dan

01-03-2008 17:14:52




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 Re: Shifting with a hand clutch in reply to MattC, 01-03-2008 17:03:05  
Matt,

You have four forward and one reverse gear. The 4 and the R are indeed 4th (high) gear and reverse. The 1, 2, and 3 are first (low), second and third. Line up the shifter on the one you want to select and then move it over. None of these gears engage the PTO, you should have separate lever for that, on my '49 it is a small flat lever to the right of the main shift lever that pushes either forward or backwards.

Dan

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SC Dan

01-03-2008 17:18:27




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 Re: Shifting with a hand clutch in reply to SC Dan, 01-03-2008 17:14:52  
Matt,

I'll add too that I think that you are probably starting off in high gear, or too high of a gear. I'll also add that I agree that extremely cold weather can make things thicker and move a little harder and slower inside the tranny.

Dan



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MattC

01-03-2008 17:28:55




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 Re: Shifting with a hand clutch in reply to SC Dan, 01-03-2008 17:18:27  
Thanks for all the info. I will try again tomorrow looking at it as a sideways H with 1st 2nd and 3rd on the right hand side. This tractor was built 30 years + before i could even drive so this is all new to me. I'm used to automatics and air conditioning. And yes the pto is it's own lever just didn't know if the 1,2,3 had something to due with that. Thanks for clarifying.



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SC Dan

01-03-2008 20:01:31




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 Re: Shifting with a hand clutch in reply to MattC, 01-03-2008 17:28:55  
No problem Matt. Sounds like you got it. The PTO is just engage and disengage, pushing it forward will engage it. Go with the advice given earlier by the others and go easy when engaging the hand clutch, let the tractor start rolling before you push the hand clutch fully forward. Also, you don't shift these through the gears like a manual transmission car. You pick a gear based on the work you are going to do and run it, if you want to change gears for some reason, disengage the clutch and stop and pick your new gear, don't try to cycle through them from 1st to 4th like driving a car!

Dan

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MattC

01-04-2008 12:44:52




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 Re: Shifting with a hand clutch in reply to SC Dan, 01-03-2008 20:01:31  
Dan, thanks for the info on shifting while driving. would of never of thought of that and probably would of ended up with a couple more issues. Able to drive it forward now. Had a fuel issue also that i didn't realize, that was making it stall before i could get going. This thing has been a work in progress. So far so good .



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SC Dan

01-03-2008 16:45:39




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 Re: Shifting with a hand clutch in reply to SC Dan, 01-03-2008 16:42:50  
I should have added this... think of the shift pattern as an "H" tipped over on it's side.
Hope this helps.


Dan



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JGarner

01-03-2008 16:08:02




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 Re: Shifting with a hand clutch in reply to MattC, 01-03-2008 15:38:03  
Gary is right you have to treat the had clucth just like a foot clurch. Ease it in slowly and when the tractor is moving push it over center.

The newer SCs had a wet clutch and I think the older ones did too so you shouldn't worry a lot about burning it up by slipping it to start the tractor's motion. We never had clutch trouble on our LA with a hand clutch, our 53 SC had a foot clutch.



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Gary in Pulaski, WI

01-03-2008 15:53:29




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 Re: Shifting with a hand clutch in reply to MattC, 01-03-2008 15:38:03  
Maybe you are forgetting that you have to "tease" the clutch along SLOWLY, and then fully engage the clutch after the tractor begins to move along at a good speed. I grew up driving my dads SC, and really love that tractor. He said that it was the first rubber tired tractor in Shawano county, here in Wisconsin. I would NEVER fully engage the clutch (over center) if I was parking the tractor in a shed or in a garage. It IS possible that you have a problem in the transmission, in that the reverse gear is not being slid all the way out of the drive position. It could be a bent or broken fork, although, I doubt that. Lots of luck!

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