The (SF) "Swing Free" arm allows the door to be put into hold open position, but then repositioned (swing free) to any other degree of opening without taking the closer out of the hold open mode.
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No, LCN does not have an electronic hold open closer (SE/ME Series) that will provide a solid 180° hold open position.
The 3130SE has an adjustable hold open position from 85° to 110° maximum.
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The Von Duprin 7500 mortise lock body ships in the NL mode. Either the function of 7500 lock body has not been changed to the Classroom function or the NL Drive screw is not all the way down. Step...
Tips for changing the function:
The NL Drive screw will not be visible when lock body is set to Classroom function
There is locktite on the screw that makes it seem like its turned down enou...
Surface Mounting - A 9542 DD (double door) header and a 9540-18 mounting plate can be used on the active leaf. A manual closer with a PA (parallel arm) can the be installed on the inactive leaf. B...
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...
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 Senior Swing (STD) pull arm.
Install the header using app...
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