Case-O-Matic

55a · Dec 19, 2016

I was looking at u-tube this morning and came across a JI Case archive promotional film on the introduction of Case O Matic transmission.
Except for the family VAI I am a red guy and know nothing of the Case O Matic tractors. Was it a good transmission, pro & cons. Would it be a good tractor for a collection and or to use or are they trouble? Thoughts
Thanks
JG

111 · Dec 19, 2016

Here is my 830 pulling, i love the Caseomatic, I wish all of my tractors could be Caseomatic. At the end of the pull I shifted from direct to Torque converter.
Ben
Untitled URL Link

1031D · Dec 19, 2016

They'll out pull ANYTHING competitive if they're in good shape. My 800 pulls 4-16's like it's 2. The engine doesn't bog.down much in convertor mode the torque convertor just slips. Claims from both Twin Disc and CASE said they'd generate up to 100% more torque than a dry clutch tractor.

Adirondack case guy · Dec 19, 2016

The torque amplifacation factor of a COM converter is 3.14 before the converter stalls.This means that if an engine flywheel can develope 500#ft of torque the output shaft of the converter will deliver 1570#ft of torque to the tranny input shaft, at stall rpms.
Loren

Ande · Dec 19, 2016

My Dad did 52 demonstrations with a "800" Caseomatic in 1959. Many stories he told me about them, and the "800" kicked butt. Out of those 52 demonstration's, he told me he eventually sold all those customers a Case tractor.
If you treated them right, they were the best transmission of their time.

Ray IN · Dec 19, 2016

We had an 800 Case-O-Matic that I used for everything growing up. Maybe there was always something wrong with it, but it was a very jerky system and you could never shift without grinding the gears. Trying to pull a load out onto the rode especially up hill was terrible. It would not go until you pulled the lever out, and then it was all or nothing.

Adirondack case guy · Dec 19, 2016

I guess knowone ever taught you how to operate it. They were great for starting and bringing heavy loads up to road speed. Most all construction equipment designs shifted from clutches to converter drives about the same time the COM tractors were introduced, because of inhansed production abilities.
Loren

X-Y switch · Dec 19, 2016

Back in the day I remember two block men duking it out. One with a Case 830 and the other with a 560 Farmall. (Why does spell check tag Farmall? lol.) They were both diesels pulling four bottom trailer type plows. They were about even in good sandy loam but when they hit the famous Mo. tiger shyt clay the Farmall would shift the TA to the low side and lose so much ground speed that the Case with COM and the torque converter with an infinity of speeds would run all over the Farmall. Like so many others I think too many people didn't take the time to figure out how to operate the COM. Always wished MM had copied COM instead of Farmsll's TA.

Neil Grant · Dec 20, 2016

I watched that video too. They claimed the model demonstrated set a record at Nebraska for tractive efficiency of pound pull divided by tractor weight. It was a record which I always thought the Cockshutt 550 had. Sure enough, the 550 was the very next Nebraska test and did a little better. So they could claim that up until that time. The case with caseomatic must have done well as the 550 Cockshutt has phenomenal traction. Weighs less than a Cockshutt 40 or 50 and less power but pulls more per the Nebraska tests. I got a lot of Cockshutts but I also enjoy my VAO.

Bret4207 · Dec 22, 2016

The COM is simply a locking torque converter ahead of a standard gear tranny. The tranny is bulletproof like everything Case made.

semiller72 · Dec 25, 2016

I remember when my dad got the 800 that I've restored - best part about the COM was being able to back up to hook up whatever by just keeping your foot on the brake. Get it lined up and set the brake. I remember too at the time thinking how cool, a tractor with a gas pedal. Then I figured out how to use the gas pedal to slip into direct drive - accelerate, drop off the gas, shift. Whenever I see a posting about COM being jerky, well..it's all in knowing how to use it.

rfdmn · Dec 26, 2016

It's all in the way they are operated. I use an 830 case-o-matic on a snow blower. Works great.

Case-O-Matic

55a

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111

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1031D

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Adirondack case guy

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Ande

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Ray IN

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Adirondack case guy

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X-Y switch

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Neil Grant

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Bret4207

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semiller72

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rfdmn

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