2030 and 5030 are both overhead concealed closers.
The 2030 uses a concealed, in the door, track, and a concealed one piece arm.
The 5030 uses a exposed double lever arm (like the arm for a 401...
The hold open position on a "REG" or "EDA" hold open arm is set with the door to a few degrees shy of the desired hold open point. To properly set, open the door 5° less then the desired hold open...
The 4640 Regular arm (4640-3077) is the same as:
4040 Long Arm
4820 Regular arm.
The arms listed above are for reveals up to 4 1/2" and have a 8 3/8" long rod and shoe.
4640 Long arm ...
When installing the arm; the gearbox shaft and door must be at the (+90°) full open position. The following step are used to install the Sr. Swing (REG) push arm. Install the header and door brac...
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...