Re: Jerky loader

Posted by Gerald J. on December 25, 2006 at 07:44:16 from (67.0.102.128):

In Reply to: Re: Jerky loader posted by DL in MI on December 25, 2006 at 06:15:24:

When the cylinder lowers under load, it can be the piston seals or the valve. There are two seals on a double acting cylinder, the piston and the piston rod. The piston rod seal only has pressure on when you force the cylinder to retract so it doesn't leak as often. But it can leak. Well used cylinders often have the piston seals worn out, things like an O-ring worn to a D cross section. Its a lot more trouble to get the cylinder apart and back together than to change the seal. That seal may have an O-ring plus a couple backing rings.

There is a chance that Baum Hydraulics (www.baumhydraulics.com) may have a kit, or the parts. If you decide to do the cylinder yourself you may have to take it part to identify the needed parts, then order them. There are several ways to take a cylinder apart, depends on who made it. I take mine to a machine shop that has a big press with V-blocks to hold the cylinder and a 4' pipe wrench to turn the ends where that is how they come apart. Tools that I don't own. And I happily pay the $25 for the repair. Randall Machine and Welding in Randall, Iowa. Only open some Friday afternoons and Saturdays for now.

Gerald J.

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