Craftsman 139.18076 User Manual

1/2 HP
GARAGE DOOR OPENER
For Residential Use Only
Model Nos:
139.18076 • 139.18086 • 139.18096 • 139.18675
139.18676 • 139.18686 • 139.18696 • 139.18975
KG
KG
1
2
3
®
■ Safety Precautions
■ Assembly
■ Installation
■ Adjustment
■ Maintenance
■ Operation
■ Troubleshooting
■ Parts List
MD
Sears Canada, Inc., Toronto, Ontario M5B 2B8
Visit our Craftsman website: www.sears.com/craftsman
CAUTION:
Read and follow all safety rules
and operating instructions
before first use of this product.
Fasten the manual near the
garage door after installation.
Owner’s Manual

Craftsman 139.18076 Specifications

General

Brand	Craftsman
Model	139.18076
Category	Garage Door Opener
Language	English

Summary

Assembly Section

Rail and Trolley Assembly

Step-by-step guide to assembling the opener rail and installing the trolley.

Fasten Rail to Opener

Instructions for securely attaching the assembled rail to the opener unit.

Install Idler Pulley

Procedure for installing the idler pulley at the end of the rail.

Install Chain and Sprocket Cover

Guide for installing the chain, sprocket cover, and related components.

Tighten the Chain

Procedure for properly tightening the opener chain for correct operation.

Installation Procedures

Sectional Door Installation

One-Piece Door Installation

Determine Header Bracket Location

Guidance on selecting the correct mounting location for the header bracket.

Install Header Bracket

Instructions for securely installing the header bracket to the wall or ceiling.

Hang the Opener

Steps for securely mounting the opener unit to the hanging brackets.

Install Control Console

Fasten Door Bracket

Connect Door Arm to Trolley

Safety Reversing System

Install Safety Reversing Sensor

Aligning the Safety Sensors

Adjustment Section

Adjust UP and DOWN Limits

Adjust Force

Test Safety Reverse System