Masterlock BCCO0615 Guide

Instructions for installation of knob or lever locksets
Backset is the distance from the door edge to the center of the hole on the door face. Master Lock door locks are supplied
with an adjustable latch which can fit 2-3/8” (60mm) or 2-3/4” (70mm) backset.
Follow steps below to change backset.
Follow steps below to change backset.
To convert to 2-3/4" backset
Backset
a. This latch is for 2-3/8" (60mm) backset.
b.Keep spindle cam in correct position as illustrated. Pull spindle cam all the way to the right.
c. Your latch is now set for 2-3/4" (70mm) backset.To reset 2-3/8" backset,push spindle all the way back to the left.
AC
B
Mark door with template Drill holes
Measure one half of door thickness from doorstop
and mark for the vertical centerline of strike. Drill
1" hole, 1/2" deep at the intersection of the
horizontal and vertical centerlines.
Close door to mark horizontal
centerline of strike.
Insert latch in
hole, mark
outline of face
plate and
chisel 11/64"
(4mm) deep.
Insert latch and tighten screws.
Select 2-3/8" or 2-3/4" (60mm or 70mm)
backset as desired and mark center of hole
on door face.
Drill 2-1/8" (54mm) hole on door face from both sides
to avoid wood splitting. Drill 1" (25.4mm) hole for latch.
Install latch
2
3
/ 8 "2
3
/ 4 "
UP
Attach the latch face that matches the mortise in the edge of your door
Fin
Floating Sleeve
Round Face Plate
Locate floating sleeve and round
face plate and proceed.
To change latch faces:
1. Use a flat screwdriver to separate the face plate.
2. Snap selected latch face onto backplate.
For drive in installation:
Push latchbolt to the end and hold. Align the round face
plate opening with the fin on the latch. Push to the end
and rotate the round face plate counter-clockwise. After
assembly, release latchbolt to fully extend. Move the
floating sleeve toward the round face plate until the
edge fits into the ring opening of the round face plate.
Back Plate
Face Plate

Install outside knob (or lever)
Insert spindle through latch. Press flush against door. (NOTE: Key hole must be in down position).
Install inside knob (or lever)
Install inside knob (or lever) and tighten screws until lock is firm.
B
a. Match screw holes on strike with vertical centerlines on jamb. Mark outline of strike plate and chisel out until strike
is flush with jamb. (Approx. 1/8")
b.Install strike and tighten screws.
Install strike
A
1-3/4"
45mm 1-9/16" 40mm 1-3/8" 35mm
Make 1" Hole at Center of Door Edge
TEMPLATE
Fold on Dotted Line and Fit on Door Edge
For Backset 2-3/8"
For Backset 2-3/4"

23/8"23/4"
UP
2
3
/ 8 "2
3
/ 4 "
UP
23/8"23/4"
UP
2
3
/ 8 "2
3
/ 4 "
UP
Instructions for installation of single and
double cylinder deadbolts
Backset is the distance from the door edge to the center of the hole on the door face. Master Lock door locks are supplied
with an adjustable latch which can fit 2-3/8” (60mm) or 2-3/4” (70mm) backset.
Backset
a. Rotate latch crank to retract the latchbolt to the unlock position.
b.Push the change lever up against the top. Hold torque plate and torque spring then pull the extension
plate all the way out. Be sure the 2-3/4" (70mm) screw hole is properly aligned and "change lever"
jumps down to original position.
b.
c. Your latch is now set for 2-3/4" (70mm) backset.
d.Latch may be adjusted back to 2-3/8" (60mm) backset by retracting the latchbolt, pushing up the
"change lever" and moving the extension plate back to its original position.
(NOTE: Be sure the 2-3/8" (60mm) screw hole is properly aligned and "change lever" jumps down to
original position after alignment.
A
B
C
D
1-3/4"
45mm 1-9/16" 40mm 1-3/8" 35mm
Make 1" Hole at Center of Door Edge
TEMPLATE
Fold on Dotted Line and Fit on Door Edge
For Backset 2-3/8"
For Backset 2-3/4"
Mark door with template Drill holes
Measure one half of door thickness from doorstop
and mark for the vertical centerline of strike. Drill
1" hole, 1/2" deep at the intersection of the
horizontal and vertical centerlines.
Close door to mark horizontal
centerline of strike.
Insert latch in
hole, mark
outline of face
plate and
chisel 11/64"
(4mm) deep.
Insert latch and tighten screws.
Select 2-3/8" or 2-3/4" (60mm or 70mm)
backset as desired and mark center of hole
on door face.
Drill 2-1/8" (54mm) hole on door face from both sides
to avoid wood splitting. Drill 1" (25.4mm) hole for latch.
Install latch
2
3
/ 8 "2
3
/ 4 "
UP
1. Use a flat screwdriver to separate the faceplate.
2. Snap selected faceplate onto backplate.
Attach the faceplate that matches the mortise in the edge of your door
To change faceplates:

Install exterior mechanism – single cylinder
Press cylinder side flush against door making certain the torque blade is properly positioned in latch crank. Tapped holes in
housing of exterior cylinder should be lined up with screwholes.
Key hole should be in down position. TORQUE BLADE SHOULD HORIZONTALLY INSERTED INTO LATCH CRANK.
Install interior mechanism – single cylinder
a. Slide turnpiece and interior rosette onto torque blade.
b.Insert machine screws through holes engaging holes in cylinder and tighten firmly.
Install exterior cylinder – double cylinder
Press exterior cylinder flush against door. Exterior torque blade should be horizontally inserted into latch crank first.
B
Install interior cylinder – double cylinder
a. Press interior assembly flush against door, making certain the torque blade is properly positioned in latch crank.
Keyhole should be in down position.
b.The interior torque blade is inserted into the exterior hole.
c. Insert two screws through countersunk holes engaging holes in exterior cylinder and tighten firmly.
A B
A
C
B
a. Match screw holes on strike with vertical centerlines on jamb. Mark outline of strike plate and chisel out until strike
is flush with jamb. (Approx. 1/8")
b.Install strike and tighten screws.
Install strike
A
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