Posted by Janicholson on October 21, 2007 at 14:05:48 from (66.173.50.13):
In Reply to: hydraulic pump Super A posted by Robert Ba on October 21, 2007 at 13:55:43:
The closed type system is tough to diagnose. If it has a remote supply block on the side of the Touch Control module, pressure can be checked there. It is one of three things (all of which can be affected by thinning oil with warm up. Worn pump, Leaking piston bypassing oil, and internal hemorrhage at a gasket Oring or seal. If it leaks down when shut off, I would suspect the piston seal. Try a slightly thicker oil than Hytran/Touch Control in the system to make it workable. Any good brand Hydraulic oil is OK JimN
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