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“ Latch speed adjustment not working ”

RELATED FAQS

Resolution: How to: What are the steps to adjust a door closer? Facts: All LCN and FALCON door closers will have 3 regulating valves and a spring adjustment. All closers with a "Del...:

How do you slow down the closing speed of the 4600 series operator?

Resolution: 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...:

What is the delay time adjustment on a Delayed Action closers?

Resolution: Regular LCN closers have "3" regulating valves for General Speed, Latch Speed, and Backcheck. If the LCN closer has "4" regulating valves, then the closer has the Delayed Action feature. De...:

Is there adjustment limits on the regulation valves of LCN manual closers?

Resolution: The regulation valves are designed to adjust the flow the hydraulic fluid in the closer which regulates the door closing speed through various phases of the closing cycle. The regulation valv...:

What is the SUS feature "Device Template"

Resolution: See the attached Technical Note for instructions on saving a "Device Template" FROM a device or loading TO a device, Device Template Tech NoteOn the SUS/HHD go to the LOCK Properties tab, and sele...:

How can the Von Duprin 98/9975-L with 996L classroom trim function be converted as a night latch function in field?

Resolution: The following steps are required to convert the Von Duprin 98/9975L from classroom to night latch function: Order new 996L-NL-M trim and reset NL drive screw in mortise lockbody as se...:

What would keep the vertical rod exit devices top latch from being held retracted in the open position?

Resolution: Following exit devices 2227/F, 33/3527A/F, 33/3547A/48A/F, 98/9927/F and 98/9947/48/F have similar rod adjustment procedures. All top latches control the bottom latch assemblies. When do...:

Why is the 2390 top latch not staying retracted when dogged?

Resolution: Most likely need to length the top rod so latch can engage it's internal latch retention state. See 2390 Instructions for adjusting rod lengths.: