Posted by mkirsch on April 04, 2011 at 11:37:14 from (64.80.110.74):
In Reply to: Super A hydraulics posted by drmiller on April 04, 2011 at 07:27:17:
In the literal sense, NO, you cannot have true "one way" hydraulics with the Touch Control lift arms on a Super A. They are always two way; power up & power down.
What Jim and NawlensGator are describing is a way to disengage down pressure. The TC lift can't "force" the implement into the ground.
Unfortunately, the lift rod on a Super A does not have the sliding collar like on a 140. The sliding collar arrangement is part of the Fast Hitch design, which came out after the Super A.
On many Super A implements, you WANT pressure on the down stroke.
For those that don't need the pressure, they either used a chain or a spring-loaded link.
Can you describe better what you are trying to do, and why you only want one-way hydraulics?
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