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400 Hydraulics

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Hobby Farmer 52

05-12-2012 07:59:55

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I have a loader on my 400 Super Diesel with single acting cylinders on the lift arms and a double acting cylinder on the bucket. Does the 400 have enough capacity to put double acting on the lift arms? Does any one have a suggestion on what size I should use? I think the existing controls will work for double acting.

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Jim McVay

05-15-2012 16:03:44

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 Re: 400 Hydraulics in reply to Hobby Farmer 52, 05-12-2012 07:59:55  
I conveted my 400 tranny to hy-tran and dilled and tapped a hole in the front of the hydralic cover to 3/4NPT. I now have the entire traany as a resvoir. Thye threaed the hole so if it did not work I could plug it. I forget what I did for a fluid level as one is higher than the other. I think I put a street 90 in the tranny and raised the oil level about 1/2"

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Den N Ms

05-12-2012 09:41:41

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 Re: 400 Hydraulics in reply to Hobby Farmer 52, 05-12-2012 07:59:55  
Hobby Farmer,A hydraulic rebuild shop can convert your single acting cylinders to double action cylinders if they are not damaged.Cheaper than buying new ones.Just a thought.

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jon f mn

05-12-2012 08:17:58

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 Re: 400 Hydraulics in reply to Hobby Farmer 52, 05-12-2012 07:59:55  
It takes less capacity to use double acting cylinders once they are full because the oil is displaced from one side to the other. On single acting you have to draw from the reservoir to fill the cylinders so it takes more oil. What you need to lift will determine the size of the cylinders. If your lift capacity is how you like it now, get the same size cylinders.

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