Oil & Fuel BX-24 no 12v to fuel pump!?!?

[96superjet]

20 year old fuel pump got replaced a year ago with inexpensive JEENDA eBay replacement. Worked great for about a year. Tractor starved for fuel last week. So I replaced both 1 year old fuel filters first, but still no fuel to fuel to injectors.
Picked up another cheapy fuel pump and still no fuel flow. Hot wired the new fuel pump directly to the battery with an inline 15A fuse and the fuel is pumping like a champ. Tractor runs now, but don’t like manually putting 12V to the fuel pump.
Is there a fuse I’m not seeing the feeds the fuel pump? Or could there be something messed up with the ignition switch? When I turn the key to on position, that fuel pump should be cranking, but she’s not.

 

[RjCorazza]

Couldn't find a wiring diagram for a BX24, but on a BX25 The third from top 15a fuse powers the fuel pump. As you are aware, it's powered while the ignition switch is on, so I would be confirming if other "ignition on" things are receiving power from that source. If it's just the fuel pump wiring, you could always abandon the original fuel pump wires and run new wire from the pump to an "ignition on" circuit.

 

[TGD]

Probably a bad (main) switch or bad connection to the switch or fuse, or bad ground connection on the pump ground wire. It's not that complicated of a circuit. 12v power is fed through the switch when the main switch is in the on position, then to the 15A fuse, from the fuse to the pump. The other side of pump is grounded. I would look at the switch connector and if that looks okay test the switch. Schematic shows what is connected and when on the main switch.

 

[Jim_in_PA]

I seem to remember a couple of fuses on the end of a bundle on (I think) the right side of my BX22 in addition to the regular fuse block. Check for something like that on your BX25. The location is down toward the frame, maybe partially hidden by the FEL mounts.

 

[96superjet]

Couldn't find a wiring diagram for a BX24, but on a BX25 The third from top 15a fuse powers the fuel pump. As you are aware, it's powered while the ignition switch is on, so I would be confirming if other "ignition on" things are receiving power from that source. If it's just the fuel pump wiring, you could always abandon the original fuel pump wires and run new wire from the pump to an "ignition on" circuit.
View attachment 1288721
View attachment 1288722

RJCorazza was spot on…
The 15A fuse labeled “ACC” not only handles the headlights, turn signals, but indeed handles the fuel pump.
Thanks all for your input and insight.