M SERIES
Heavy Duty Mortise Lock
Door Preparation
1. Align door preparation template on
edge of door with applicable lines.
Check door preparation chart and
mark only holes for lock function
being installed.
2. Mortise door edge according to
measurements of installation
template and drill proper holes for
trims.
Strike preparation
1. Align strike template on jamb
according to measurements of strike
installation template.
Bore 1”diameter holes into door
edge, 1 1/8”deep. Recess 5/32” for t
of strike and box.
2. Mortise jamb according to measurement
of installation template. Then t strik
and dust box into frame and secure into
place with screws.
Outside lever
1. Place spring cage onto outside lever
assembly with arrows pointing in
direction of lever rotation. Insert
spindle into hub of lock case.
2. Position outside lever assembly into
post holes of lock case.
Lockcase Installation
1. Insert lockcase into
mortise cut-out & fasten
screws to door.
Installation
Template
C
L
C
L
C
L
of Front
Plate
of Lever
of Cylinder
Installation
Template
C
L
of Front
Plate
C
L
of Front
Plate
Vertical Line
of Lever
1-1/8”
Depth
3 -3/4”
Height