flatheads & vacuum tu
Member
I got a great deal on a CASE 762 backhoe from an 860.
It weighs 2,200 lb.
It wants 13 gpm, but the pressure is not stated
I welded up an adapter for my Jet Star and it worked, but was too heavy even with counterweights in the front. I also think that most hydraulic systems of 860 era wanted 2500 psi which is twice what the aux. pump on my Jet Star provides.
So the bad news, and the good news, is that I need to purchase another MM!
I assume that none of the old MMs provided over 1500 psi, so I will need to build my own pump for PTO or pulley drive.
So, how much should my larger tractor weigh? Is the M5 or GB (2000 lb heavier than my Jet Star) big enough, or do I need something bigger?
Is there any reason to get a 3-pt hitch? It is easier to weld an adapter for the axle and drawbar.
Any advantage of belt drive over splined PTO?
I assume that a GB without a 3-pt will cost less than a M5 as its application is limited?
I actually like the idea of having a pully as I have a machine-shop full of old line-shaft lathes and mills which were converted to electric drive, and I could use the MM to drive the line-shaft so that I could convert them back to belt-drive (until I find a steam-engine)
It weighs 2,200 lb.
It wants 13 gpm, but the pressure is not stated
I welded up an adapter for my Jet Star and it worked, but was too heavy even with counterweights in the front. I also think that most hydraulic systems of 860 era wanted 2500 psi which is twice what the aux. pump on my Jet Star provides.
So the bad news, and the good news, is that I need to purchase another MM!
I assume that none of the old MMs provided over 1500 psi, so I will need to build my own pump for PTO or pulley drive.
So, how much should my larger tractor weigh? Is the M5 or GB (2000 lb heavier than my Jet Star) big enough, or do I need something bigger?
Is there any reason to get a 3-pt hitch? It is easier to weld an adapter for the axle and drawbar.
Any advantage of belt drive over splined PTO?
I assume that a GB without a 3-pt will cost less than a M5 as its application is limited?
I actually like the idea of having a pully as I have a machine-shop full of old line-shaft lathes and mills which were converted to electric drive, and I could use the MM to drive the line-shaft so that I could convert them back to belt-drive (until I find a steam-engine)