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#Adjusting automatic door closer how to
#Adjusting automatic door closer download

If the door closer has no spring tension and the spring tension adjustment turns around with no effect, the spring is broken and the door closer must be replaced.In either case, your best option is to replace it. If your door closer is slamming the door and cannot be adjusted to do otherwise, either the fluid has leaked out or the valve seals are worn out.If oil is leaking from your door closer, it must be replaced.

#Adjusting automatic door closer how to

How to know when it’s time to replace your commercial door closer If the arm makes noise and bounces up and down while the door is in motion, tighten the fasteners that hold the arm to the closer, to the header, and at the knuckle that holds the two parts of the arm together.

#Adjusting automatic door closer download

Download the instructions from the commercial door closer manufacturer’s website and see if it is installed correctly.

If the closer stops closing the door before it’s closed all the way, or actually springs back when you try to manually shut the door, the arm is probably installed on the shaft incorrectly.

Sometimes a door must be repaired before it will close and lock automatically.

If there is an adjusting self-closing door hinge problem, a warped door, or the door must swing uphill to close, a door closer will only go so far to solve the problem.

Ideally a non-delayed action door closer will close and latch the door in seven to eight seconds.

When it closes the way you want it to 10 times in a row, it will probably continue to do so.

If not, go back up the ladder and make another adjustment. If it closes correctly every time, you’re done. If it closes right the first time, check it 10 more times. Turn the adjustment screw clockwise to slow the closer down, counter-clockwise to speed it up. Remember, when it comes to turning commercial door closer adjustment screws, a little goes a long way.If not, you may have to experiment a little to see which is which. They should be marked on the closer body as to what they are or there will be a diagram inside the cover. Now that you have the cover off, you should be able to see the adjustment screws.If, however, it is not leaking, you can proceed. If you find that there is oil in the cover or oil on or leaking from the closer body – stop right there.Pull it off and if you do see fasteners, you can loosen, but not remove, the fasteners and the cover will slide off. If you see no fasteners holding the cover on, that means the cover is held on by tension. The cover is usually plastic, but it could also be metal. When you examine the commercial door hydraulic closer, if you can’t see adjustment screws, chances are the closer has a cover. A turn of just five degrees can significantly increase or decrease closing speed. When it comes to turning the screws that operate these valves, a little goes a long way. Most of the adjustments to the automatic door closer are implemented by opening and closing hydraulic valves. This article is primarily about commercial door closers, but the ideas here can be applied to other kinds of door closers as well. But with these attributes and the appropriate wrench, hex key, or screwdriver, you can adjust an automatic door closer by yourself. Tweaking commercial door closers is a knack that demands know-how, a dash of patience, and the knack for going up and down a ladder a bunch of times.