Bleeding Fuel Lines

[HNC]

I changed the fuel filter on my L3200 and bled the fuel lines via the valve a few inches above the filter. I did not loosen anything else. With a full tank the tractor starts and runs well until the fuel level drops to about 3/4 of a tank or below where the return lines enter the top of the fuel tank. Then air enters the lines and filter housing causing the tractor to sputter to a stop. Do I need to bleed the lines further or is there another cause of the problem?

 

[North Idaho Wolfman]

Another cause!
My first thought sounds like you have a failed lift pump.
Other option would be a bad gasket on the fuel filter housing or a crack / break / leak in a fuel line.

 

[HNC]

Another cause!
My first thought sounds like you have a failed lift pump.
Other option would be a bad gasket on the fuel filter housing or a crack / break / leak in a fuel line.
View attachment 95770

Thanks! I appreciate the information.