straightpick wrote:Hard to tell what hand the door is from the pic, appears to be right handed. If so, the closer is mounted too close to the center of the door, should be about 7" from the hinge centerline to the first two mounting holes of the closer.
from the one pic, appears the Norton is on a left hand swing door and closer is mounted on pull side of door, (room side)
lubing the hinges with any grease, oil or lubricating substance is not really going to fix this problem, as i wrote in my really long post about this closer earlier, its the GEOMETRIC angle of the closer's arms.
exspook: same thing I said, its the angle of the arm is whats causing unlisted's problem,
what I think happened is that the installer (maintenance man at a college in this case) either was using an installation method used for installing those old fashioned traditional closers or thought arm is suppose to be 90 degrees from the wall. (makes me wonder if the guy even PRE-LOADED the arm to 45 degrees like the installation instructions indicate

) many door closers (Nortons/yales and dormas) have an indexing mark or flat spot on shaft and a number or letter on the arm near the star punch this is used to properly preload the closer spring during installation. basically, when door is shut (and latched) the closer spring still should be compressed alittle. not preloading the arm can cause wear and loose arms. a loose arm can cause loss of control and noises (clunking and clicking) because of the arm rattling and bumping into the top edge of the door)
hope this has helped anyone,
-Jess the door(closer)doctor