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K.B.-826
02-20-2008 16:02:44
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Re: international farmall 856 hydraulic in reply to VINTAGE TRACTOR, 02-20-2008 15:25:17
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There are several ways you can do this. The cheapest would be to buy one of those universal 2-spool "loader" valves and mount it on the fender or something, run the supply and return hoses to your factory outlets, and tie your lever back so it's on demand at all times. Second option would be to call a salvage yard and order a second factory valve. There are two styles of factory vavles, one is called a closed-sided valve, as the oil supply and return passages do not go all of the way through, and the open-sided valve, that has the passages all of the way through so another valve can be fed. Tractors with one factory valve either have a closed-sided valve, or an open-sided with a cover plate. Most 56 series have the closed-sided. Look to see what you've got. If you've got a closed-sided, you'll need to get an open-sided valve, install it in the inside position, and install your closed-sided valve on the outside. If you've got the open-sided with a cover plate, you can remove the plate and install a closed sided valve in the outside position, or install another open-sided with the cover plate. Your third option would be to install two open-sided valves with a power-beyond plate, and run hoses off the power-beyond plate to a seperate loader valve, for a total of 4 outlets. This would be the neatest set-up, but would easily cost over $1000 to do, especially if you had to buy two open-sided valves. One last thing, when talking hydraulics, don't confuse the terms "closed-sided" and "open-sided" with the terms "closed-centered" and "open-centered". They mean different things. 856's hyd. system is open-centered, so if you use one of those loader valves, make sure it is set up for open-center operation.
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