Reply to thread

Message: <blockquote data-quote="Tazza" data-source="post: 15714" data-attributes="member: 82">I think i know the seals you are talking about on the pump, they seal the shaft for the pintle levers or yoke (whatever you want to call them). There is only charge pressure under here so i don't see it causing you any harm if you can live with the leak. The control block should be simple too. The fittings should use an o-ring for a seal, if you pull the plug there may be a check valve under it, just replace the seals and it should be good. The arms dropping could be a bad piston seal in a ram or it could be the load checks in your control block. They will look like a plug but have a poppet and a few O-rings and backup rings usually in line with the spool at either end where the tube lines connect. If you drain as much oil as possible, pull the load checks out and take them to a hydraulic seal shop they will be able to match them up for you. They are a very simple item, but when they wear and leak it drives you mad with the rams not holding pressure and the arms lower on their own or bucket tilts.It may sound compelx but it really is simple, just a few O rings and backup rings.</blockquote>