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“ closer oil leak ”

RELATED FAQS

Question
Answer
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 
Can the 4630/4640 cylinder only be replaced?
The 4040(XP) door closer can be used as a temporary replacement in a 4630/4640 operator to provide manual control of the door while the 4630/4640 closer cylinder is being repaired or a replacement ...
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 ...
Does LCN sell a coupler to stack two 4040XP closers together?
LCN does not recommend this type of installation, and has never sold a coupler to do this.
What would cause a door closer to slam?
There are a few things that can cause a closer to slam. The closer could be adjusted incorrectly. Turn all regulating screws clockwise until they stop. Then open each valve 1 and 1/2 turns. If t...
HYDRAULIC FLUID
Oil, Closer Fluid, Fluid