richard gray Posted July 3, 2019 Share Posted July 3, 2019 Need info on how vacuum system works ? i do not have a correct vacuum switch ,so using toggle style air off and on valves too control doors and locking dog release.does the vacuum pots require constant vacuum source or can the vacuum be held in (close the valve) to keep door closed? when i release the vacuum the doors open and the locking dog kicks in and has to be vacuum released to close the door Link to comment Share on other sites More sharing options...
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