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Case Tractors Discussion Forum
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70 series powershift

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Mikey

12-03-2006 07:44:10




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I have an 1974 870 with the manual 8-speed. I have been told that very little can go wrong with the manual 8-speed and will run "forever" and others have said they wish they did not have powershift. As I recall, the 770 to the 1175 had powershift as an option while the 1270 on up had powershift as standard equipment.

I have about 3800 hours on it and nearly all of those hours came from pulling a 4/16 plow, a 15' disk or field cultivator. I live in southern Wisconsin with heavy soil and many hills. So far I've never had a problem.

My dad bought the tractor new and I away's told him he should have got the powershift option, but now after reading about problems with powershift on this board, I think my dad made the right choice.

Thoughts?

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dboll

12-04-2006 05:02:45




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 Re: 70 series powershift in reply to Mikey, 12-03-2006 07:44:10  
For the numbers of Cases with powershift, I haven't seen that many give trouble, if you think they give problems you have not worked in a Case shop and saw all the IH's with trans, torque and final drive failures



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Rusty6

12-03-2006 09:17:50




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 Re: 70 series powershift in reply to Mikey, 12-03-2006 07:44:10  
My brother worked at a Case dealership for years and he repaired a lot more power shift tractors than manual trans. models. Part of that reason is that there were a lot more power shift models sold than manuals. I've owned a 2090 Case 8 speed manual shift since 1980 and in over 6000 hours it has not had a major transmission problem. Only complaint is the clumsy and awkward shifting the cables cause sometimes. Otherwise its good. Those 70 and 90 series powershifts were pretty jerky too. I've driven 970s to 2390s and they were all the same. Not saying they are a problem but just offering my experience with them.

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John Saeli

12-03-2006 08:57:53




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 Re: 70 series powershift in reply to Mikey, 12-03-2006 07:44:10  
We've got an early 870 with over 5,000 hours on it. It's done everything from heavy tillage to baling. Because of the torque of the engine, we didn't use the power shift option in tillage. Put it in a gear & leave it. When baling is when we seem to use the power shift. In all those years & hours, it's never been touched. We've got 5 CASE power shift tractors here, all perform flawlessly. Never a regret.

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Ken L.

12-03-2006 08:11:36




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 Re: 70 series powershift in reply to Mikey, 12-03-2006 07:44:10  
In my area, it seems that the powershift transmition's life depended on the owner. Some only made it 1500hrs. When I saw how these machines where maitained, I was surpised that they lasted that long. Others lasted much longer because the oil and filters were changed on time. I worked at a Ford-NH dealer and one farmer brought his 970 & 1070 in for regular checkups and maitainence. When I left, he started doing his own maitainence. At that time, the 970 had almost 10,000 hours and the 1070 was pushing 12,000 hrs. To this day, neither trans. has been overhauled. If they are maitained and don't have the snot beat out of them, there is nothing wrong with them.

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Mikey

12-03-2006 09:42:07




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 Re: 70 series powershift in reply to Ken L., 12-03-2006 08:11:36  
Sounds to me like poor maintance and abuse are the main problems as opposed to many hours of heavy tillage. That makes sense.

Nowdays I use the tractor for mowing CRP land in the summer and I often think that having powershift on it would really be handy for the thick and thin spots.



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JoeBob/in

12-04-2006 15:15:59




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 Re: 70 series powershift in reply to Mikey, 12-03-2006 09:42:07  
If you were to actually tear one apart you would see that they are pretty simple and stout. Only real issue is with the bolts that hold the thing together. Factory ones were 3/8 but could be drilled and tapped to 7/16 for a nearly industructable cure or upgrade to the later series (94 I think) and you got 1/2 bolts. Even if they do fail it is usually easily fixed assuming you can split the tractor. I made my own stands and have split 3 1070's for various reasons. Have yet to do a 1270 or larger, they have to be split further back to access the tranny.

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