How do you adjust the power adjustment on the LCN 320g door closer?

Answer 1

To adjust the power of the closer spring (not the closing speed), there should be a label on the long cylinder showing the method. Anyway it's simple, just tighten the hex nut on the end of the cylinder a bit. The label says 9 turns maximum. There are three Allen screw adjusters on the top of the closer for regulating the phases of the door closing speed. A good tip: give the door latch itself a high polish, smooth and slippery, and that encourages it to latch nicely.