SARGENT L980S & 12-L980 Keyed Removable Mullions - Manual

INSTALLATION INSTRUCTIONS FOR
L980S & 12-L980 STEEL MULLIONS
FOR ASSISTANCE CONTACT SARGENT AT 800-727-5477 or www.sargentlock.com
Tools Required:
· Measuring Tape
· Pencil
· Drill & Tap Sizes: #7 drill and 1/4"-20 tap
· Concrete Drill: 3/8" diameter
· Center Punch
· Hammer
· #3 Phillips Screw Drivers
· 5/64" Allen Wrench
· 1/8" Allen Wrench
To install mullion in frame
1. Close and block the doors against the frame stops. Check gap
between door leaves and door to frame and correct if necessary.
2. Locate the center of the opening on the floor. Using the bottom
retainer mark the positions for the two drop-in fasteners.
a. The bottom of the door should come to rest against the
surface of the mullion.
b. Modify threshold as required.
3. Drill holes with 3/8" diameter cement bit to a minimum depth
of 2-1/2".
4. Fasten bottom bracket to floor.
5. Locate the center of the opening on the top of the frame.
Using the top retainer mark the positions for the four fasteners.
a. The door should evenly rest against both the frame stop
and the mullion.
b. If a top retainer mounting kit is used, modify
weather-stripping as required.
6. Drill and tap each location for 1/4"-20 fasteners.
7. Mount top retainer on frame with provided fasteners.
8. Measure “Dim X” as shown. Remove material from the
bottom of the mullion per the formula:
length of mullion = “Dim X” minus 3/4".
Note–This leaves approximately 1/8" clearance between the
mullion and the top bracket when mounted.
9. Place mullion onto bottom bracket and pivot into opening to latch.
10. Tighten bottom bracket set screw to prevent mullion rattle.
11. Install exit devices according to manufacturer’s instructions.
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A7111C
Dim “X”