Re: 656 Hydrostatic

Posted by Heat Houser on November 22, 2004 at 20:19:35 from (69.66.106.177):

In Reply to: 656 Hydrostatic posted by Roy Robertson on November 22, 2004 at 14:37:44:

Run some oil into a bucket from your remote outlets. If it is foamy, you are sucking air and you will need to find the suction leak. If it is not foamy, you are likely running over relief and it may be hunting or cavitation is ocurring. Typically you cannot hear the filter bypassing as the bypass valve opens at Delta P of around 10-15 psi. Usually, whining and jumping pumps are a sign of areation or cavitation. aeration...suction leak, cavitation...restricted suction.

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