Posted by Destroked 450 on April 16, 2018 at 09:57:03 from (173.242.142.14):
In Reply to: Hydraulic Math posted by LeakyBoot on April 15, 2018 at 06:36:23:
You haven't mentioned what tractor you want to use with the mower or it's hydraulic capabilities.
I find it hard to believe NI would have built the mower so that it could only be lifted by the most modern high pressure hydraulic systems.
There forth I'm questioning the condition of the tractors hydraulic pump and relief valve.
If the tractors hydraulics are in good condition wouldn't it be simpler if room allows to swap out the mowers lift cylinder for one with a larger diameter barrel.
Don't have my book in front of me that tells what the increase is on lifting force if one changed from a 3" dia cylinder to say a 3 1/2 or even 4" keeping the rod dia the same.
My first move would be to install a pressure gauge inline and see how much actual pressure the tractor is putting against the cylinder. If I had another tractor that would raise the mower bar I'd connect to it's hydraulics and using the inline gauge I'd see how much pressure it actually takes to lift the bar.
This would give one a number needed in order to formulate what is needed to make up for the tractors lack in hydraulic capability.
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