Simms pump picture Question

Here is a picture of the simms pump on my industrial 220 motor. I have shown the air bleed and the cold start for future refrence.

What are the other two things?

Also does this pump need oil checked/ filled?
If so where do I do that at?

The second item is the overflow pipe. Diesel is allowed to enter the pump for lubrication. Any excess bleed out of here onto the floor. Only a very small amount though.

Yes you have to fill the governor housing with oil. This is separate from the pumping components. Oil filler is that square plug near the fuel filter in your picture, level and drain are the plugs near the lift pump operating lever in your picture. Fill with engine oil and change when you change the engine oil. Diesel will also build in here and dilute the oil, this is normal. The oil only lubricates the mechanical governor.

The pump is a Simms Minimec.

I thought that was a lift pump but not sure. It has an electric pump on it now that it uses.

The fuel tank is above the motor. Do i even need a lift pump being how the tank is above the motor? Just wondering incase the electric one goes out.

This clears things up for me.