bought a 2014 T770. Decided to change all filters and fluids. Changed out the Fuel filter. Machine ran for a bit then shut down. Watching a video, it looks like I missed the step on removing the air from the system. The video showed cracking a hex head screw on the top of the filter and then pumping a primer ball until no more bubbles are seen. There is no inline primer ball on my machine like the video shows. Has the previous owner removed it or is there a different procedure? Thanks