case hand clutch

alexis.marcil · Nov 9, 2014

hello, can somebody confirm that the left lever on this photo is a hand clutch?

thanks

DeltaRed · Nov 9, 2014

I'm not a Case guy...But that would be a 'shuttle reverser'.

rustred · Nov 9, 2014

I say not. looks like a high and low range. the pedal on left should be the clutch, as you should be able to tell just by looking at the linkage from it and see if it goes to the bell housing to the clutch. not real familiar with that model case.

DeltaRed · Nov 9, 2014

There are 3 levers on the trans,Plus one on the dash.That one looks too big to be a throttle.One should be a hi/lo.the other 'speed tran'.Third? Drive the tractor a bit. move all the levers and find out. As I said,I am NOT a case guy........

curtis larson · Nov 9, 2014

It is the hand clutch for the live pto.

Jeff B. · Nov 9, 2014

Yes, the lever on the left is the hand clutch. It comes in quite handy for me when I use my rototiller. With it, I can keep the tiller running while I lower it into the ground, and then pop the lever up and the tractor starts moving.

rankrank1 · Nov 9, 2014

Posting on the Case forum will likely result in the best answers although a couple posters already have it correct.

From what I can see, this is what I believe:

Lever on left dash is the throttle.

Lever on the left trans case allows you to stop forward motion while the PTO continues to run. So yes it is a hand clutch so to speak and provides a pseudo-live PTO. Pushing the foot clutch will stop both the PTO as well as tractor motion.

Lever in center trans case is the 4 forward and 1 reverse gear selector.

Lever to the right on the trans case is the range selector. If dual range it will give you 8 forward speeds and 2 reverse speeds. If triple range then you will have 12 forward and 3 reverse speeds.

Note: You must come to complete stop to either shift gears as well as change ranges. No shifting on the fly of either one.

DeltaRed · Nov 9, 2014

Does that work similar to the MW hand clutch on a Farmall M? but whatever...I learned something from this 'thread'.Always a good thing!Thanks for all the shared knowledge.

rankrank1 · Nov 9, 2014

In function yes, (using the hand clutch stops tractor motion while still powering the PTO), but how the design itself works then No.

The M&W hand clutch was an after thought add-on that simply stopped tractor motion by opening up the differential to maintain power to the PTO. In essence the axle is still being driven. As most know take a 2wd drive tractor and put 1 tire on a patch of ice while the other sets on dry ground. All the power in an open differential goes to the tire with the least resistance. In this case the one on ice. M&W hand clutch does the same thing. That axle becomes the one with the least resistance and where all the power goes.

Case and (Allis who also use a hand clutch) for the pseudo live PTO in their early years all broke the input power ahead of the transmission I do believe. So the tractor was designed from the get go for it. The Allis hand clutch even ran in a bed of oil and could be slipped for prolonged periods without damage.

DeltaRed · Nov 9, 2014

Thanks.So it more closely resembles a '2 stage'
clutch,where you press down half way to stop
foreward motion,all the way to stop pto.?

rankrank1 · Nov 9, 2014

The allis was a totally separate hand clutch (and it ran in oil) compared to the dry foot clutch. So it was not like a 2 stage foot clutch at all. Not sure how Case accomplished it and I am too lazy to look at the various parts diagrams which would likely tell the story. That said, If you pull some case parts diagrams for some of the models then the Case-omatic had Indpendent PTO where the traditional gear drive trannys and clutches used that hand clutch for the pseudo-live PTO. So make sure to look at the gear drive units and really this only applies to tractors 630 in size and smaller from the era of mid 1950's to mid 1960's or so. The bigger Case tractors were traditional Independent PTO so do not look at those.

I just know that they accomplished what they needed to do in a different way than the M&W hand clutch did from an engineering design perspective. But from an operator perspective I guess that does not matter much.

alexis.marcil · Nov 9, 2014

thanks a lot everybody, the seller wasn't able to answer my question so I didn't want to drive 2 hours to check it out if it didn't have the hand clutch.

Lazy WP · Nov 9, 2014

I agree. My 530 is set up exactly like that and the left lever is the shuttle shift, and yes you still use the foot clutch to shift it.

cs.hess · Nov 9, 2014

Tend to agree it is a shuttle as the front axle says it is not a agg tractor rather a industrial mmodel

Adirondack case guy · Nov 9, 2014

Just to end all the chatter here, that is a 1956/7 Case 310 round nose with 12spd trans. The lever on the LH is indeed a wet hand clutch, connecting the main hollow transmission drive shaft to the 12spd. Power to the pto is transmitted to it any time it is mechanically engaged at the rear and the foot clutch is engaged. The hand clutch disengages the outer hollow shaft which drives the tranny.
The lever on the top cover RH side is the tripple range lever. High range straight up, direct range straight down, and low range 1/2 up, slide to right and then push up. Lever on LH dash is throttle.
Loren, the Acg.

01gentdc · Nov 10, 2014

thanx Loren , for taking command ... LOL

case hand clutch

alexis.marcil

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DeltaRed

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rustred

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DeltaRed

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curtis larson

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Jeff B.

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rankrank1

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DeltaRed

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DeltaRed

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rankrank1

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alexis.marcil

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Adirondack case guy

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