I have been trouble shooting a slow leak down in the drive. I replaced the rams with a another used set and that did not fix the issue, still falls down over the period of a day or so. There is no oil getting past the glands. I also replaced the manifold with a new one. Lines are ok.
I noticed when it bleeds down I can pick the drive up because the is air on that side of the rams. I was thinking there must be a bad o ring in the pump, but how would that allow air in as the drive falls. Is it just pulling enough vacuum to pull air past the gland seals as it falls due to a bad o-ring or check valve?
I noticed when it bleeds down I can pick the drive up because the is air on that side of the rams. I was thinking there must be a bad o ring in the pump, but how would that allow air in as the drive falls. Is it just pulling enough vacuum to pull air past the gland seals as it falls due to a bad o-ring or check valve?