RESET spring power

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All the 2030 series closer have a fixed spring sizes. Example -- a 2031 has a size 1 spring,  a 2302 has a size 2 spring, 2033/2034/2035 etc. All the 2030 series closer are shipped at the weakest s...
Mechanical pre-loading of spring to adjust closing force
Closing force exerted by the spring inside the cylinder to close the door
  The super capacitor powers the AD300 motor to the correct power fail position, secure or unsecure, during a power fail event. When power is restored to an AD300 in the Power Fail secure ...
  Recognize the AD300 when first powered, or when recovering from a power loss, may NOT be fully functional for two minutes until the AD300 super capacitor is fully recharged. During this rec...
Fast power adjust dial Revolutionary visual indicator allows spring power adjustments Dial turns easily to quickly and accurately set size
To determine the SC series, measure center to center on the closer body bolt hole mounting pattern and an overall description of the closer and arm. SC91 -- 6-3/8" x 3/4" -- unique arm SC93 -- 9-1...
The 4040XP closer can be hard to open if the Spring Adjustment is set to strong. Try reducing the spring power by turning it down on closer (counter-clockwise).