Bleeding Universal 5416

[thh]

I have to bleed the fuel system on an Atomic universal 5416 after I changed the fuel filter. I followed the instruction in the manual and turnde the ignition key to activate the fuel pump. However when I opened the bleeding srew on top neither air nor fuel was dispensed. In fact I did not hear the fuel pump working. Does anyone know what I am doing wrong?

[joe-fran]

Battery switch on?

[thh]

yes battery is on and oil light is on too