what is an EDA arm

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If the closer arm is touching the door, it is because the arm or the closer body is not templated correctly. Confirm dimensions are taken from the proper location and make corrections if needed. 
The dead stop post would need to be removed and the 4040/4040XP EDA mounting template for 180° would be followed.
EDA ARM - The EDA arm is a heavy duty parallel arm mount.  The degree of door opening is determined by the template used for mounting. EDA arm closers can only be mounted as a Push Side parallel ar...
ST-3195 is used to obtain the old style EDA or Cush arms which were assembled with threaded studs so that you could take apart the arm assemblies. Our current standard EDA and Cush arms are rivet...
The 1460 Regular Arm part numbers are: Regular Arm -- 1460-3077 or 1460-3077L for long arm (must specify finish). Regular Arm with PA -- 1460-3077PA (must specify finish). Regular Hold Open Ar...