3800 Series Small Case Mortise Deadlock Installation Instructions I-LS01643

1. PREPARE DOOR AND JAMB

A. Mark lockset centerline.

• 1. Measure desired height from finished floor.
• 2. Mark centerline on both faces and edge of door.

CAUTION: The outside and inside of the door may require different preparation. Use proper template for outside (exterior or corridor) and inside of door.

• 1. Align centerline of door template with centerline mark on door edge.
• 2. Based on the function of the lock, mark position of drill points.

C. Mortise door edge for wood doors.

• 1. Align template with centerline of door edge.
• 2. Mark and drill two (2) 1" diameter holes, 4-1/2" deep.
• 3. Remove remaining wood until the mortise is 1" wide by 4-1/4" high by 4-1/2" deep.

Note: To precent splintering or damaging of doors, drill through holes halfway from each side of the door.

The standard recess is 1-1/4" x 5-19/32" x 7/32".

F. Install strike.

• 1. Align centerline of strike template with the centerline marked on doorjamb.
• 2. Bore 1" diameter holes into doorjamb, 1-1/8" deep.
• 3. Recess 5/32" for a flush fit of the strike box. (Additional recess is required when using strike reinforcement).
• 4. Using a Philips screwdriver and two (2) strike mounting screws, install strike into doorjamb.

7/32" (6.0mm)

1" (25mm) Holes

Clear Out for S trike B ox

3800 Series Small Case Mortise Deadlock Installation Instructions I-LS01643

2. INSTALL LOCK CASE A. Assemble cylinder. B. Using a partially inserted key, screw the cylinder into the lock case. 3. INSTALL OUTSIDE FULL FACE CYLINDER a . b. 4. INSTALL THUMBTURN 5. INSTALL INSIDE FULL FACE CYLINDER A. Insert the thumbturn in the vertical position. B. Throw deadbolt, install two (2) thumbturn mounting screws. a . b. Follow Step 3. 6. INSTALL CYLINDER TURN 7. INSTALL ARMOR FRONT A. Change cylinder turn handing (if needed) and move ball and spring to appropriate hole. B. Assemble cylinder turn. C. Screw cylinder turn into lock case. A. If needed, tighten the cylinder anchor screw until hand-tight. B. Tighten the two (2) lock case mounting screws. C. Place armor front in position and install two (2) armor front screws. B all and S pring a . Hole for R ight-Handed b .& c. Hole for Left-Handed Hole for Non-handed a. c. b.