BEST ACCESS SYSTEMS W Series Service Manual page 213

Overview
Escutcheon
Cylinder
Spindle
Figure 25—Exploded view of the mortise lock (M trim shown)
25
Mark centerlines
Caution: If the door is a fabricated hollow metal door,
determine whether it is properly reinforced to support the
lock. If door reinforcement is not adequate, consult the door
manufacturer for information on proper reinforcement.
Note: Prepare the door according to ANSI A115.1 before using these
instructions.
Centerline
of strike
3/8"
Jamb
Vertical centerline of door
edge and lock front
Figure 26—Marking the centerlines
1 Mark the horizontal centerline of the lock on both sides of the door
and on the door's edge.
2 Mark the vertical centerline of the lock on the door edge.
T61959/Rev A 1803887 ER-7991-19 June 2000
Installation Instructions
for 34H–37H Mortise Locks
Trim mounting plate
Mortise case
Recommended door to
jamb gap: 1/16" to 3/16"
2 3/4" backset
Vertical centerline
of cylinder &
knob/lever
1 1/2"
Horizontal
centerline of lock
Horizontal
centerline of
knob/lever
Door Recommended
height from
floor — 38"
3 Mark the vertical centerline of the cylinder and knob/lever on both
sides of the door as measured from the vertical centerline on the
door's edge.
4 Mark the horizontal centerline of the strike on the door jamb 3/8"
above the horizontal centerline of the lock.
Lever
26
Center punch drill points
Caution: Only center punch the holes required for the function
and trim you are installing.
Faceplate
Figure 27—Punching the drill points
1 Cut the template along the dotted line and align the horizontal and
vertical arrows to the marked centerlines on the door.
2 Tape the template to the door.
3 Center punch the appropriate drill points.
27
Install strike plate
Figure 28—Installing the strike plate
1 Mortise the door jamb for the strike box and strike plate. When the
strike box is not used, mortise the jamb deep enough to allow the
latchbolt and deadbolt to fully extend. (See Installation Specifications
for dimensions, template H03 and H11.)
2 Insert the strike box and secure the strike with screws provided.
Caution: The auxiliary bolt must make contact with the strike
plate. The auxiliary bolt deadlocks the latchbolt and prevents
someone from forcing the latch open when the door is closed.
If the incorrect strike is installed, a lock-in can occur.
BEST ACCESS SYSTEMS
Indianapolis, Indiana
Jamb
Strike box
Strike plate
—Continued on the next page
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