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Case Tractors Discussion Forum
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Case 1070 Power Shift

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Wade

03-27-2004 07:09:12




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Tractor will not move in 1st powershift. Will work in 2nd and 3rd powershift and reverse. I have a manual from reading it I think C1 clutch is out. The manual tells me how to take the powershift out of the tractor, but my tractor has a cab. Do I have to take the cab off to get the top of the transmission cover off? Does anyone know of a place where I can get a rebuilt powershift or aftermarket parts. We don't have a Case dealer close.

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Wade

03-30-2004 19:20:10




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 Re: Case 1070 Power Shift in reply to Wade, 03-27-2004 07:09:12  
Thanks everyone for all the good information. Tomorrow it is going into the shop to be torn down. May need some more help as I take it apart. So any helpful hints will be very welcomed. Thanks everyone again.



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Jim Handke

03-29-2004 07:03:13




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 Re: Case 1070 Power Shift in reply to Wade, 03-27-2004 07:09:12  
If you are only repairing C1 clutch, you wouldn't need to do anything other than split the tractor. C1 assembly is the very front of the powershift. The clutch is mounted on the outside of the front casting. Easy to get to and replace. Check and see if the clutch piston has pushed the sealing o-ring out of the piston groove. That lets oil past and reduces the pressure on the clutch and friction plates. Most of the time, we have to replace C1 because it broke off the splined shaft and is sitting on the bottom of the housing. We figured running a big round baler, with the constant stopping and starting, is the reason this happens. My 1070 has never been on one and has never been replaced.

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LARRY

03-28-2004 08:41:46




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 Re: Case 1070 Power Shift in reply to Wade, 03-27-2004 07:09:12  
I've done it on a 70 series and 90 series.

On the 1070 you don't have to take the cab off. Pull out the floor matt, then remove the floor cover plate. I would then take a pressure washer and clean it all off really good under there before you start.

If you have a CASE service manual it walks you throught it really good. The powershift comes out as whole unit. It's not that complicated but if you're unsure take the powershift unit a case mechanic and he'll be able to tell you what should or shouldn't be replaced.

As for parts check around with tractor wreckers.

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jb

03-27-2004 18:09:27




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 Re: Case 1070 Power Shift in reply to Wade, 03-27-2004 07:09:12  
You can get the trans. cover off without removing the cab, but it isn't easy, and you will spend a lot off time on your knees hunched over in the cab. Not fun! Sounds like you need to split the tractor anyways. The easiest way we have found is by removing the entire operater's platform. There are four bolts that hold it on. Disconnect all linkage, wires, and oil lines. Then lift the platform off, cab and all. Roll the tractor ahead. This gives you plenty of room to work on the rest.

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Jim Handke

03-27-2004 10:08:57




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 Re: Case 1070 Power Shift in reply to Wade, 03-27-2004 07:09:12  
On cabbed tractors, we split the tractor as usual. We roll the rear of the tractor back until the cab is close to the steering wheel. We have a 20 ton floor jack under the rear half, and we jack that half up until the cab clears the steering wheel. When the platform pulls far enough away from the cowl, the cowl will fall down slightly and it will have to be raised up to slide back over the platform when going back together. The only drawback to not taking the cab off, is that you'll scratch the paint on the cowl up close to where the cover that lets you get to the air filter. You'll notice that the cowl slopes up in the back, and that the rubber molding around the cab bends sharply at several points. This is where the scratching occurs. And you might tear the rubber molding somewhat, but we smear some Geocel sealant on it when we're done, to keep the wind and dust out. I might not have explained everything just right, so I'll be glad to answer all questions you might have.

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