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Old 04-07-2012, 08:35 AM   #4
billr
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Join Date: Jan 2006
Location: Ontario Canada
Posts: 857
The actuators in these units only have one line to them and are pressure and suction operated. The control module decided what way the fluid goes. This is why you get rams that bypass internally and drop down on their own or won't move.

I wish they had pressure and return lines like "real" actuators! ha

Bill
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