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Discussion Forum
:

Help. WC hyd.

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Steve

04-03-2002 20:19:38




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WC has an undermounted ??? after market, ?
says allis chalmer's on it. It's a hyd. tank
with the pump inside. on the outside it has
two hyd. levers. one side has a outlet. that
works fine . the other side has two outlet's and Iam not getting any pressure/ It acts like it is working
because when u move the lever either way it bogs
down the engine , can someone tell me what I can
do to get the thing working? Thanx Steve

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steve

04-04-2002 18:16:20




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 Re: help. WC hyd. in reply to Steve, 04-03-2002 20:19:38  
Steve, i dont know wnat you have, but i would be willing to try to help. lets assume the pump is sucking oil from the tank and pushing it to the hydraulic valve. now you have two spools that direct oil to the external cylinders. there are three types of spools.
---the most basic is the single acting type or one way hydraulics. you pull the lever and oil is directed thru one hose to a cylinder. you let go of the lever and it returns to neutral or "hold". you push the lever and the oil flows back thru the one hose to the vavle and into the tank. this is standard on all old tractor hydraulic systems. the weight of the blade or plow will push the oil back to the tank by gravity from its own weight.
---type two hydraulic valves are double acting, or one hose to the top of a cylinder and one hose to the bottom of the cylinder. push it goes up, pull it goes down. when one hose has pressure, the other is routing oil back to the tank thru the valve.
---type three spool is on- off. you pull the lever and oil goes to a "hydraulic motor" like a spray rig, hydraulic chopper, boom mower, etc. the oil goes thru the motor and returens back thru a second hose to the tank. it will not go backward, on-off.
-----you need to take the hoses loose, turn pump and stroke spools and seee which type you have,. if you cant figure it out the valve needs to come off the tank, set on the bench and you or somewone else see what you have. again, this assmumes the pump sucks oil from the tank and pushes it thru one hose to the "valve" you are describing. there should be a dump line on the back of the valve which retursn oil to the tank, when motor tractor motor is running and the valve is not stroked.

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Steve

04-04-2002 06:22:10




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 Re: help. WC hyd. in reply to Steve, 04-03-2002 20:19:38  
someone said it may be a Charr-Lynn unit.



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Muray Dunn

04-06-2002 15:02:02




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 Re: Re: help. WC hyd. in reply to Steve, 04-04-2002 06:22:10  
It sounds like a Char Lynn. One side is one way and other side is 2 way possibly ends capped. I have one on a "B" Farmall



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