12V diesel pump wiring question,

[RandyinMS]

Hey Gang,

I have new to me, older 12V 15amp pump on a 300 gallon tank. To refuel my LS XR4150 I pop the hood, connect jumper style clamps from my pump to the tractors battery. Mechanics I can do ok but electrical Im pretty dumb.My LS does not have a power port but it DOES have a 7 pole trailer connection. couldn't I just wire up a 7 pin (ground and 1 positive that reads over 15 amps) and use it as a power plug?

 

[dog13]

Yes that will get you power and ground. Here is a good wiring schematic of the different connectors. Trailer Wiring Diagrams | etrailer.com

That being said - 15a is a reasonable draw, check your fuse size before going this route to ensure the wiring/fusing is adequate. What i did for my 12v/15a transfer pump is installed a fused SAE 2 pin connector on the tractor and the replaced the jumper clamps with SAE connector on my pump with
a longer cable. That gives me plenty of reach from the pump to the tractor and it is on it's own fused circuit

 

[RandyinMS]

Yo dog13

Thanks will do!

 

[RandyinMS]

Yo dog13

Thanks will do!

 

[Dadnatron]

I did that with my 12V tank. Wired an external connector so I could just plug it in...

But after doing it for a while, I decided to make my life easy. I bought a deep cycle battery, charged it up, and put it in a plastic battery box and just sat it on the ground behind the tank. I connected it to my pump wiring with the same type of connector which is on my tractor. It is WELL worth it. I put the battery out there Spring 2017 and haven't had to charge it yet. It makes my life easier in something I do often.

There was nothing wrong with popping the hood and hooking up the connector. But my connectors were pretty tight, so I did have to wrangle it a bit each time. But, the cost of the battery and a little wiring makes it no more difficult that simply flipping the pump on. I wish I had done it rather than all the tractor wiring. It wasn't hard... but this is so much easier.

 

[countrybumpkin]

We have been using the alligator clips on the pumps for years, all our tractors had a hot post on the starters straight from the battery, no need to open the hoods or gain access to the battery. Then hook the ground to a frame bolt.