Max roofing nailers and other brands will have this problem if the feed spring is weak or missing. The other situation that causes the feeder to turn is when the nailer is missing a protective cover. Usually covers in this area of the nail gun keeps debris out of the feeder area and prevents the feeder from popping out if place. Finally, if the feeder has a broken ear or guide, it can move past the glide area and get stuck. Good luck with your repair.
SOURCE: max roofing nailer
Max nailers are very good quality and parts are not expensive. Parts and parts list at www.toolpartsdirect.com. Check the following to repair not feeding problem.
Check paw in the door should have a light spring action. Feed paw should have a medium spring action. You may have to pull the feed piston back and hold to check feed paw spring action. Feed piston should have heavy spring action. If springs seem ok then remove feed piston and replace two orings. If the feed piston spring is broken replace with correct part. Make sure that the ports that direct air to feed piston are not blocked with bits of rubber or dirt. Sometimes parts of the bumper will break off and spread thru-out the gun. Good Luck and enjoy. (parts not expensive)
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