[quote=Munchskull;1508725]For all of you with the Harbor freight rivet gun, how did yo remove the bottom cap to prime with fluid? It will not budge for me. I am on my second one and it will not come off.
they do need oil to operate i have had to add to mine several times. if it takes more than 3 trigger pulls it needs oil. there should be a wrench with the gun. on mine you use the "outside" of the wrench. it can be very tight. clamp the large part of the body in a vice.