Were you seeing if they pumped any air before you tried fuel? They don't move air at all. They are also not that good at sucking up a prime when they are very far above the liquid level.
There is also a very good chance if you were trying to pump liquid that the 6A charger is not going to do it. The average current on the pump is less than 2 amps, but they take a little kick to get going that the charger may not be able to supply. The small inexpensive chargers also sometimes only have half wave rectifiction of the AC (meaning that you get a 12V pulse than nothing 60 times a second). That is a likely culprit considering your buzzing description. In normal operation it is more of a clacking at a few times a second. Hook it to your car battery if the plane battery is not charged and I bet you a donut it works fine. Brian Kraut Engineering Alternatives, Inc. www.engalt.com -----Original Message----- From: krnet-bounces+brian.kraut=engalt....@mylist.net [mailto:krnet-bounces+brian.kraut=engalt....@mylist.net]On Behalf Of Dan Heath Sent: Thursday, February 17, 2005 7:42 PM To: kr...@mylist.net Subject: KR> Facet Pumps I have 2 Facet fuel pumps. When I apply power, they make a high frequency buzzing sound and do not pump anything. When I look inside the output port, I can see the little white ball vibrating inside. I cannot even feel any air being moved on either side of the pump. Any ideas on what might be the problem. I am using my 12 V 6A battery charger for a power supply. See N64KR at http://KR-Builder.org - Then click on the pics There is a time for building and a time for FLYING and the time for building has expired. Daniel R. Heath - Columbia, SC See you in Mt. Vernon - 2005 - KR Gathering _______________________________________ Search the KRnet Archives at http://www.maddyhome.com/krsrch/index.jsp to UNsubscribe from KRnet, send a message to krnet-le...@mylist.net please see other KRnet info at http://www.krnet.org/info.html
