Max. reveal for a 4642:
4640 Regular arm -- 4.5"
4640 Long arm -- 8"
4640 x ST-3088 ( custom made - extra long rod) -- 8" to 11"
No special mounting instructions required, just standard templ...
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 ...
The 9542, 9553, 9563 surface mounted Senior Swing with a regular arm, mounted on the push side of the door, can handle a reveal from 1 1/8" up to 10".
The 9542, 9553, 9563 surface mounted Senior S...
The "Regular Arm" allows for a reveal up to 4-1/2".
The "Long Arm" allows for a reveal between 4-1/2"- 8".
ST-3088 is a special "Extra Long Rod" used to mount a 4640 operator on an opening wit...
An LCN 4040T with a reveal deeper than 1/8" on the pull side of the opening requires a Double Egress (DE)arm.
ST3073 Standard 4040T DE Arm will accommodate reveals up to 2-11/16"....