Steven f/AZ said: (quoted from post at 19:47:12 02/10/08)
Looks like there are some tapped holes in the pulley, right? You should be able to have a pulley machined with the holes and bolt it on there if you want to go belt drive. ..
you could also still use those holes to attatch an adaptor to a shaft with flexible couplings to a pump like i first mentioned--if there is enough room fore and aft. i'm on dial up so i'm sorry i'm not providing so many illustrations.
a source for the type of pump system i'm talking about is northern tool. never dealt with them but they have plenty of pictures of the products online and in their paper catalog. keywords would be couplings/flexible couplings and barnes cast iron hydraulic gear pump. you would be on your own to fab a pump mount and the adaptor from your crank pulley to a coupler/shaft assembly. for more from me email floor_it @ yahoo . com
for fluid source, i would mount a tank to the loader frame, otherwise there's a lot of monkeying around with plumbing and routing, most of which will drag on or near the ground just enough to get caught on something.
you do not want closed center unless money is no object. the cost of the pump, control valves and other system components will be prohibitive and require very good engineering and maintenance skills. proper gpm, pressure, cylinder selection, coupler selection, etc. with a dedicated opencenter system will work quite well for you, and be much simpler in engineering and maintaining. there are open center/closed center hybrid systems, but again that gets spendy with talent and money.
for lots of speed, a 2 stage open center pump would be neat, but the ones i've seen take up a lot of lateral space which is at a premium for you.
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