Fuel pump switch wiring
 

Hi,
Does any one have a schematic for wiring a 12 volt fuel pump. I would like to use two switches one for power the other for reversing the pump.
Thanks.
jef

RE: Fuel pump switch wiring
 

Jef,
This is freehand rough but it shows how to do it.

Let me know if you have questions.

John S.

RE: Fuel pump switch wiring
 

Jef,
I'll try it again. The scanner got me the first time.

John S.

RE: Fuel pump switch wiring
 

Maybe the third time will be a charm...

J.S.

RE: Fuel pump switch wiring
 

J.S.
Your drawing is just what I was looking for. I will pick up the switches tomorrow.
I appreciate your time and effort.
Thank you.
jef

RE: Fuel pump switch wiring
 

You only need one switch. Get a three position "center off" DPDT switch and wire it as shown in the diagram. Center position is off, one direction for fill, the other way for empty.

Joe

RE: Fuel pump switch wiring
 

Thanks Joe,
Got all the parts will assemble tonight.
jef

RE: Fuel pump switch wiring
 

Jeff,
Yup, Joeflyer is right...You can eliminate the SPST switch, as it disarms the system to prevent the pump switch from being accidentally operated....It's just a safety measure.
You only need the DPDT switch. All other wiring is correct. You can even use a "Momentary" DPDT switch if you prefer, as it won't pump unless you hold the switch lever in place while pumping. "Momentary" switches are spring loaded to the center "OFF" position.

Harley Condra
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