Master Lock Manuals & User Guides

User manuals, setup guides, troubleshooting help, and repair information for Master Lock products.

Tip: include the full model number printed on your Master Lock label for the best match.

Master Lock manuals

Latest posts, featured manuals, and retailer-linked manuals for this brand tag.

Master Lock 5401EURD Key Storage Compartment Instruction Manual

August 20, 2025

Master Lock 5401EURD Key Storage Compartment Product Specifications Model: 5401EURD Product Type: Key Storage Compartment Combination: Factory set to 0-0-0-0 Wall Mountable: Yes Weather Resistance: Yes Product Usage Instructions Opening the Key Storage Compartment Door: Open the shutter door to…

Brand: Master Lock

Master Lock 8114D Combination Cable Lock Instructions

August 13, 2025

Master Lock 8114D Combination Cable Lock Simple to Set Your Own Combination Specifications Feature Details Combination Dials 4-digit combination Knob Rotation 90 degrees clockwise and counterclockwise SIMPLE TO SET YOUR OWN COMBINATION Instructions for use Step. 1 Set the combination…

Brand: Master Lock

Master Lock 146D Pink Covered Aluminum Keyed Padlock Instructions

July 29, 2024

Master Lock 146D Pink Covered Aluminum Keyed Padlock Product Information Specifications: Product: Padlocks Recommended Cleaning Frequency: Every 3-6 months Ideal Lubricant: Master Lock's PTFE Lock Lubricant 2300D and 2311 Components: Precision locking and keying components Usage Environment: Suitable for various…

Brand: Master Lock

Master Lock M176XDLH Outdoor Combination Lock Instructions

April 3, 2024

Master Lock - Model #M176XDLH How to Change the Combination Open lock with the factory set or previously set combination. The lock must be set to the current combination, or you cannot reset it. Note: the shackle must be in…

Brand: Master Lock

Master Lock 5480EURD Portable Lock Box Instructions

February 25, 2024

Master Lock 5480EURD Portable Lock Box 5480 Portable Lock Box 5481 Wall Mount Lock Box 5482 Portable Cable Lock Box 5480 Portable Lock Box To open lock box Combination is factory set to 0-0-0-0 Open dial cover & enter current…

Brand: Master Lock

MASTER LOCK 4687DNKL Combination Locks Padlock Instruction Manual

January 29, 2024

MASTER LOCK 4687DNKL Combination Locks Padlock Instruction Manual Transportation Security Administration (TSA) baggage screeners are trained to recognize the Travel Sentry® logo on TSA – accepted locks. They have access to a secured set of codes and tools which allow…

Brand: Master Lock

MASTER LOCK 43352951 Portable Key Safe Instruction Manual

January 8, 2024

INSTRUCTIONS FOR PORTABLE KEY SAFE RESET CODE STEPS 43352951 Portable Key Safe Diol the default password (0-0-0-0) to open the key box Push the RESET lever from A to B Set your own combination Push the RESET lever from B…

Brand: Master Lock

MASTER LOCK 5401EURD Key Safe Wall Mounted User Manual

November 9, 2023

MASTER LOCK 5401EURD Key Safe Wall Mounted Product Information The product is a key storage compartment with a combination lock. It is designed to securely store keys and protect them from unauthorized access. The key storage compartment has a shutter…

Brand: Master Lock

Master Lock 630D Combination Lock User Guide

October 20, 2023

Master Lock 630D Combination Lock How to Change the Combination Operating Instructions: This lock is preset to open at 0-0-0. To set your own combination: Set dials so 0-0-0 aligns with the stripe; lift shackle. Turn shackle 90° (1/4 turn).…

Brand: Master Lock

Master Lock 81k9cP0QxIL Bike Cable Lock Instruction Manual

September 20, 2023

Master Lock 81k9cP0QxIL Bike Cable Lock Product Information The 8114D lock is a combination lock designed to secure your belongings. It features a preset combination of 0-0-0-0, but allows you to set your own personalized combination for added security. Product…

Brand: Master Lock

Master Lock Water/Fire Resistant Alarm Safe User Manual

User Manual • December 7, 2025

Comprehensive user manual for the Master Lock Water/Fire Resistant Alarm Safe, covering setup, operation, programming, troubleshooting, and safety information.

Brand: Master Lock

Návod k obsluze trezoru na klíče Master Lock P53378

User Manual • December 6, 2025

Podrobný návod k nastavení kódu, obsluze, montáži a údržbě trezoru na klíče Master Lock P53378. Zahrnuje technické údaje a rozsah dodávky.

Brand: Master Lock

Master Lock Administration Key Programming Instructions for Electronic Locks

Programming Instructions • November 28, 2025

Step-by-step guide for programming the Master Lock Administration Key (models 3681, 3685) to sync new electronic locks using either the lock-by-lock method or a USB connection with a computer.

Brand: Master Lock

Master Lock D1000 Smart Lock Quick Start Guide and Installation

Quick Start Guide • November 7, 2025

Comprehensive quick start guide and installation instructions for the Master Lock D1000 Smart Lock, covering kit contents, specifications, preparation, installation steps, and app usage.

Brand: Master Lock

Master Lock Keys and Keyways Explained

Datasheet • October 31, 2025

Detailed guide to Master Lock keys and keyways, illustrating the relationship between different key types and their corresponding part numbers for various pin configurations (Four Pin, Five Pin, Six Pin).

Brand: Master Lock

Master Lock 12 Volt DC 1500lb Electric ATV Sport Winch Owner's Manual

Owner's Manual • October 16, 2025

Comprehensive owner's manual for the Master Lock 2955AT 12 Volt DC 1500lb Electric ATV Sport Winch. Includes installation, wiring, operation, safety, troubleshooting, and maintenance instructions.

Brand: Master Lock

Master Lock Door Hardware Technical Manual - Grades 2 & 3, BumpStop®, NightWatch®

manual • October 1, 2025

Comprehensive technical manual for Master Lock door hardware, covering Grade 2 and Grade 3 residential and commercial products. Details include BumpStop® technology, NightWatch® function, various knob and lever styles, deadbolts, handlesets, and rekeying procedures. Version 4.12.

Brand: Master Lock

Custom Laser Engraving for Master Lock Pro Series Padlocks | 7000-0593

Instruction Guide • October 1, 2025

Learn how to customize Master Lock Pro Series Weather Tough® and Iron Shroud Padlocks with custom laser engraving, including logos and text. Download the order form and authorization.

Brand: Master Lock

Master Lock Security Safe Owner's Manual - Models X031ML, X041ML, X055ML, X075ML, X125ML

Owner's Manual • October 1, 2025

Comprehensive owner's manual for Master Lock security safes (models X031ML, X041ML, X055ML, X075ML, X125ML). Learn how to install batteries, program codes, operate, and troubleshoot your safe.

Brand: Master Lock

Master Lock Quick Access Compact Safe User Manual and Guide

Manual • October 1, 2025

This user manual provides instructions for the Master Lock Quick Access Compact Safe (models MLD08E, MLD08EB), covering setup, programming, operation, security, and troubleshooting. Learn how to secure your valuables with Master Lock.

Brand: Master Lock

Master Lock 270D Door Security Bar Installation Instructions

Installation Guide • September 30, 2025

Step-by-step installation guide for the Master Lock 270D Folding Door Security Bar, designed for hinged and sliding doors to enhance home security.

Brand: Master Lock

Master Lock 5400D Shackle Model Key Storage Lock Box Instructions

Instruction Sheet • September 20, 2025

Detailed instructions for using, setting a new combination, and hanging the Master Lock 5400D Shackle Model key storage lock box. Learn how to operate the combination lock and secure your keys.

Brand: Master Lock

Master Lock 5425D Wall Mount Combination Lock Box with Light-Up Dials Instruction Manual

5425D • December 6, 2025 • Amazon

Official instruction manual for the Master Lock 5425D Wall Mount Lock Box, detailing setup, operation, maintenance, and specifications for secure key and access card storage.

Brand: Master Lock

Master Lock 1500T Combination Padlock User Manual (8-Count Pack)

1500T • December 6, 2025 • Amazon

Comprehensive instruction manual for the Master Lock 1500T combination padlocks, including setup, operation, maintenance, and specifications.

Brand: Master Lock

Master Lock 7640EURDBLK 40mm 4-Digit Combination Padlock User Manual

7640EURDBLK • November 30, 2025 • Amazon

Comprehensive user manual for the Master Lock 7640EURDBLK 40mm 4-Digit Combination Padlock, covering setup, operation, maintenance, troubleshooting, and specifications.

Brand: Master Lock

Master Lock 178D Combination Padlock User Manual

178D • November 28, 2025 • Amazon

This manual provides instructions for the Master Lock 178D Set Your Own Combination Padlock. Learn about its features, setup, operation, and maintenance. This padlock offers a 2-inch wide solid body, a 5/16-inch hardened steel shackle, and a 4-digit resettable combination for enhanced…

Brand: Master Lock

Master Lock 875D Heavy Duty Outdoor Combination Lock Instruction Manual

875D • November 27, 2025 • Amazon

Instruction manual for the Master Lock 875D Heavy Duty Outdoor Combination Lock, covering setup, operation, maintenance, troubleshooting, and specifications.

Brand: Master Lock

Master Lock American Lock A701D Steel Padlock 2-1/2 Inch User Manual

A701D • November 17, 2025 • Amazon

Comprehensive instruction manual for the Master Lock American Lock A701D Steel Padlock, 2-1/2 inch. Includes setup, operation, maintenance, troubleshooting, and specifications for this durable keyed padlock.

Brand: Master Lock

Master Lock Heavy Duty Key Lock Box 5414EC User Manual

5414EC • November 14, 2025 • Amazon

Comprehensive user manual for the Master Lock 5414EC Heavy Duty Key Lock Box, providing instructions for setup, operation, maintenance, and specifications for this 5-key capacity combination lock.

Brand: Master Lock

Master Lock 4400D Bluetooth Padlock User Manual

4400D • November 7, 2025 • Amazon

Comprehensive user manual for the Master Lock 4400D Indoor Personal Use Bluetooth Padlock, covering setup, operation, maintenance, troubleshooting, and specifications.

Brand: Master Lock

Master Lock 1500D Combination Padlock Instruction Manual

1500D • November 3, 2025 • Amazon

Official instruction manual for the Master Lock 1500D Combination Padlock, covering setup, operation, maintenance, troubleshooting, and specifications.

Brand: Master Lock

Master Lock 1530DCM Standard Dial Combination Padlock User Manual

1530DCM • October 30, 2025 • Amazon

This manual provides instructions for the Master Lock 1530DCM Standard Dial Combination Padlock, covering setup, operation, maintenance, and troubleshooting.

Brand: Master Lock

Master Lock 5480EURD Key Cabinet Instruction Manual

5480EURD • October 29, 2025 • Amazon

This manual provides comprehensive instructions for the setup, operation, maintenance, and troubleshooting of your Master Lock 5480EURD Key Cabinet. Learn how to set your personal combination, install the removable shackle, and effectively use your key storage device.

Brand: Master Lock

Master Lock 614DAT 6' Self-Coiling Cable and Solid Brass Padlock Instruction Manual

614DAT • October 26, 2025 • Amazon

Comprehensive instruction manual for the Master Lock 614DAT 6-foot self-coiling cable and solid brass padlock, covering setup, operation, maintenance, and specifications.

Brand: Master Lock

Master Lock video guides

Watch setup, installation, and troubleshooting videos for this brand.

Master Lock 5440D Bluetooth Portable Lock Box: Smart Keyless Access & Property Management

2:14 • 854×480 • promo