increase closure effort

RELATED FAQS

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Answer
The hydraulic closer underneath the control box has 3 regulating valves (like any 4040 series hydraulic closer). Main Speed - adjust closing speed from 90° open down to 10°. Latch Speed - adju...
ND-series locks manufactured on or after January 30, 2017 will ship with an improved spring cage and matching lever design. The design features are noted below. Because of this change, there a...
NOTE: ND locks manufactured on or after January 30, 2017 will no longer make use of the soft durometer spacer. The improved spring cage and matching lever eliminates the need for this spacer.Schlag...