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Old 13-12-2008, 18:30   #1
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Why are autopilot hydraulic pumps mounted horizontally?

Is it because vertical mounting can cause some seal problems, or what?
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Old 13-12-2008, 18:46   #2
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Usually the reservoir fill is on top. If air gets into the pump it can cause cavitation, which will damage the pump.

If it has a separate reservoir feeding the pump by hoses the pump can be mounted in any position.
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