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“ Over adjustment lost fluid ”

RELATED FAQS

Question
Answer
What is the LCN fluid - "Liquid X" - temperature range?
The LCN closer fluid "Liquid X" will perform without variation between:  -30° F to +120° F - for manual closers.  +35° F to +120° F - for electrical closers and automatic operators. At around ...
Can the fluid in an LCN door closer be filled out in the field?
The fluid in an LCN closer must not be refilled in the field. See attached Warranty and Repair Communication 
Is there adjustment limits on the regulation valves of LCN manual closers?
  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 regulati...
HYDRAULIC FLUID
Oil, Closer Fluid, Fluid