yes like mrfixit said, look for a small screw in the top of the center cylinder, sometimes they put a bleed screw on the side of the cylinder shell so i'd look in both places but generally they put it where it will release the air from the best location where it gets trapped which in most cases is the last section that gets oil.

When you bleed the air out (once you find this screw) only lift it up a couple feet off the ground and only crack the screw till the air starts coming out. If you loosen it too much it could pop out and then you will have a big mess on your hands so be careful.

good luck