Master Lock BCCO0615 - User Manual

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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.

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.

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

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

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This document provides comprehensive instructions for the installation of Master Lock knob, lever, and deadbolt locksets, covering both single and double cylinder configurations.

Function Description:

The Master Lock locksets are designed to secure doors by providing a locking mechanism that can be operated by a knob, lever, or key. The installation process involves preparing the door, installing the latch, and then assembling the interior and exterior components of the lockset. The deadbolt locksets offer an additional layer of security, with options for single-cylinder (key outside, thumbturn inside) or double-cylinder (key on both sides) operation.

Important Technical Specifications:

Backset: The locksets are supplied with an adjustable latch that can accommodate two common backset measurements: 2-3/8" (60mm) or 2-3/4" (70mm). The backset is defined as the distance from the door edge to the center of the hole on the door face. Instructions are provided for converting the latch between these two backset settings.
Door Face Hole: A 2-1/8" (54mm) hole is required on the door face for the main body of the lockset. It is recommended to drill this hole from both sides of the door to prevent wood splitting.
Latch Hole: A 1" (25.4mm) hole is required for the latch mechanism, drilled into the edge of the door.
Strike Plate Mortise: The strike plate, installed on the door jamb, requires a mortise (chiseled recess) approximately 1/8" deep to ensure it sits flush with the jamb.
Strike Hole: A 1" hole, 1/2" deep, is drilled into the door jamb at the intersection of the horizontal and vertical centerlines for the deadbolt to extend into.
Faceplate Mortise: The latch faceplate requires a mortise of 11/64" (4mm) deep to sit flush with the door edge.
Spindle Cam: For knob/lever locksets, the spindle cam plays a crucial role in backset adjustment. Pulling it all the way to the right sets the latch for 2-3/4" backset, while pushing it all the way to the left resets it for 2-3/8" backset.
Torque Blade: This component is essential for transmitting the turning motion from the knob/lever/key to the latch mechanism. It must be horizontally inserted into the latch crank during installation.
Keyhole Orientation: For proper installation of the exterior knob/lever/cylinder, the keyhole should be in the down position.
Screw Holes: Tapped holes in the housing of the exterior cylinder must align with screwholes for secure fastening.

Usage Features:

Adjustable Backset: The ability to adjust the backset (2-3/8" or 2-3/4") makes these locksets versatile for various door preparations.
Interchangeable Faceplates: The latch mechanism allows for the attachment of different faceplates (round or square) to match the mortise in the door edge, ensuring a clean and professional finish.
Drive-in Installation Option: Specific instructions are provided for drive-in latch installations, where the latchbolt is pushed to the end, aligned with the round face plate opening, and rotated counter-clockwise for assembly. The floating sleeve then secures the edge into the ring opening.
Single vs. Double Cylinder Deadbolts: The manual covers both single-cylinder (key outside, thumbturn inside) and double-cylinder (key on both sides) deadbolt options, catering to different security preferences.
Clear Installation Steps: The instructions are broken down into logical steps, from marking the door to installing the final components, making the process manageable for DIY installers.
Visual Aids: The manual includes numerous diagrams and illustrations to visually guide the user through each step, clarifying complex procedures like backset adjustment and component alignment.

Maintenance Features:

Component-Based Design: The locksets are designed with distinct components (latch, faceplates, interior/exterior mechanisms, cylinders) that can be individually installed or potentially replaced, simplifying future maintenance or repairs.
Screwed Fastening: The use of screws for securing components like the latch, strike plate, and interior/exterior mechanisms allows for easy disassembly and reassembly if adjustments or repairs are needed.
Adjustable Latch Mechanism: The latch's ability to be adjusted for backset also implies that it can be re-adjusted if the door or frame shifts over time, ensuring continued proper operation.
Clear Disassembly Instructions (Implied): While primarily an installation guide, the detailed steps for assembling components implicitly provide a roadmap for disassembling them if maintenance or replacement becomes necessary. For instance, the instructions for separating faceplates with a flat screwdriver indicate a simple method for accessing the latch mechanism.

Master Lock BCCO0615 Specifications

General

Brand	Master Lock
Model	BCCO0615
Category	Door locks
Language	English

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