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Case Tractors Discussion Forum
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CaseOmatic

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Engineer20

05-15-2006 11:19:07




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Can someone give me the skinny on the COM? What is it's purpose. How does it operate different from a standard tranny? I'm only familiar with my LA's 4 gears and a JD 4020 powershift.

Thanks for your help




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dan hornung

06-15-2006 10:37:21




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 Re: CaseOmatic in reply to Engineer20, 05-15-2006 11:19:07  
what is wrong with my case o matic when i try to shift the main into gear all it does is grinds ? does this have something to do with the com or is it in the tranny ?



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Bret4207

05-17-2006 16:54:23




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 Re: CaseOmatic in reply to Engineer20, 05-15-2006 11:19:07  
Great tranny. Kind of like an automatic car tranny with a locking torque converter.



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Triplerange

05-16-2006 05:21:30




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 Re: CaseOmatic in reply to Engineer20, 05-15-2006 11:19:07  
Like S. says it was supposed to be used in tough spots, so you didn't kill the engine. It's also nicer starting out a load, you can't kill the engine on a COM unless it's in direct. 2 tricks I've learned using my 630 COM is when backing up to an implement, you can leave the clutch engaged and idling the tractor, use the brake to stop the tractor...otherwise it's very jerky. Another trick is used when I'm spraying. I'll get to a very very weedy patch and I'll go from direct to COM to slow down a 1 or 2 mph...getting more spray on the weeds. Make's a nice sprayer tractor with that foot throttle and COM.

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SHeiserman

05-15-2006 19:53:38




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 Re: CaseOmatic in reply to Engineer20, 05-15-2006 11:19:07  
More pull through the tough spots. If you're working it and start losing engine speed, pull it down into com. Engine speed picks right back up, ground speed will decrease, and when you're through the bad spot put it back in direct. Don't believe it was meant to be used constantly, put it in direct once you're moving along, and use com as needed. Idle down completely when shifting into gear/shifting gears. Don't let the engine run at higher rpms while it's in gear without the tractor moving. All it's doing at that point is building heat. It's entertaining watching guys used to normal tractors trying to run it.

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dctom

05-15-2006 16:20:03




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 Re: CaseOmatic in reply to Engineer20, 05-15-2006 11:19:07  
COM is a tourque converter drive with a lock up for direct drive, it is awesome when you learn to use it like it was designed, the first shift on the go there was



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travis angell

05-15-2006 11:32:41




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 Re: CaseOmatic in reply to Engineer20, 05-15-2006 11:19:07  
It's been sometime since I have run a case o matic but are farm has had three and i have purchased another one. Ther is usally a lever on the dash close to the steering when it is egaged it is in direct drive like a standard when the lever is not engaged it is like an automatic hard to figure at first but a real treat and loveable when you get use to it. Some have two gear shifts and some have one but they all have the same amount of gears 4 low and 4 hi with reverse. Travis Angell

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