Oil & Fuel DK40 inline fuel filter

[CubSteve]

I was changing the radiator hoses on my tractor today and noticed an inline fuel filter on top of the gas tank (blue filter in picture). This tractor is relatively new to me so I never noticed it before. When I traced where the fuel line coming out of the filter went, to my suprise, I found it goes nowhere. The line was just tucked in behind the dash. The owners manual and service manual neither mention this filter. The tractor has a fuel bowl and filter element on it, so does anyone know what the purpose of this filter on top of the tank is?

 

[milkman636]

It looks like a vent line to keep the tank from going into a vaccum as fuel is drawn out. That blue thing may also have a check valve (flapper) in it to stop liquid fuel from getting out.

 

[DK35vince]

Milkman is right. It is just a vent hose for the fuel tank.

 

[CubSteve]

Thanks for clearing that up for me, that never even crossed my mind. I really appreciate you guys helping newbies like me out.

 

[milkman636]

No problem. It's good for us too.