Craftsman 139.53662SRT2 User Manual

GARAGE DOOR OPENER
1/2 HP
Owner’s
Manual
Model No.
139.53662SRT2
139.53670SRT1
139.53675SRT2
For Residential Use
Only
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.
Complies with UL 325
regulations effective
January 1, 1993
®
■ Safety Precautions
■ Assembly
■ Installation
■ Adjustment
■ Care and Maintenance
■ Operation
■ Troubleshooting
■ Parts List
®
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A.

Craftsman 139.53662SRT2 Specifications

General

Horsepower	1/2 HP
Remote Control	Yes
Safety Sensors	Yes
LED Lighting	Yes
Smart Technology	No
Voltage	120V
Safety and Security Features	rolling code technology
Security	Rolling code technology
Drive System	Chain Drive

Summary

Garage Door Installation Survey

Opener Assembly Procedures

Assemble T-rail and Cable Pulley Bracket

Install Trolley and Fasten T-rail

Install Chain/Cable and Sprocket Cover

Tighten Chain and Cable

Important Installation Instructions

Critical safety guidelines before proceeding with installation.

Opener Installation

Determine Header Bracket Location

Mark the optimal position for the header bracket installation.

Install the Header Bracket

Attach T-rail to Header Bracket

Position and Hang the Opener

Install Control Console, Lights, and Release

Electrical Requirements and Safety Sensors

Connect power and install the safety reversing sensor system.

Fasten Door Bracket and Connect Arm

Adjustment Procedures

Adjust UP and DOWN Limits

Set the travel limits for fully opening and closing the garage door.

Adjust Force Settings

Adjust the force required for opening and closing the door.

Test Safety Reversing Sensor and System

Verify sensor alignment and safety reverse system functionality.

Safety, Care, and Maintenance

Important Safety Instructions

Essential safety warnings for using the garage door opener.

Opener Operation

Receiver and Remote Control Programming

Troubleshooting Guide

Common Opener Problems and Solutions

Solutions for issues like no operation, remote issues, or door problems.

Parts and Accessories