Craftsman 139.53975SRT1 User Manual

®
1/2 HP
GARAGE DOOR OPENER
ABRIDOR DE PUERTA DE COCHERA
For Residential Use Only/Sólo para uso residencial
Models/Modelos • 139.53975SRT1 • 139.53962SRT1
®
Sears, Roebuck and Co., Hoffman Estates, IL 60179 U.S.A
www.sears.com/craftsman
Read and follow all safety rules
and operating instructions before
first use of this product.
Fasten the manual near the garage
door after installation.
Periodic checks of the opener are
required to ensure safe operation.
Leer y seguir todas las reglas de
seguridad y las instrucciones de
operación antes de usar este
producto por primera vez.
Guardar este manual cerca de la
puerta de la cochera.
Se deben realizar revisiones
periódicas del abridor de puertas
para asegurar su operación
segura.
Owner’s Manual/Manual Del Propietario
ENGLISH ESPAÑOL

Craftsman 139.53975SRT1 Specifications

General

Type	Chain Drive
Model Number	139.53975SRT1
Horsepower	1/2 HP
Voltage	120V
Frequency	60 Hz
Speed	7 inches per second
Remote Controls Included	2
Safety Sensors	Yes
Battery Backup	No
Remote Control	Yes
Smart Technology	No
Warranty	Lifetime
Drive System	Chain Drive

Summary

Introduction

Safety Symbol and Signal Word Review

Explains safety symbols and signal words used in the manual for hazard identification.

Assembly and Installation

Rail and Motor Unit Assembly

Guides on assembling the rail, trolley, and connecting to the motor unit.

Mounting Opener and Controls

Covers header bracket, opener unit, door control, and safety sensors installation.

Connecting Door Arm and Final Checks

Links the door arm to the trolley and performs final connection checks.

Adjustment and Operation

Adjusting Travel Limits and Force

Sets door stopping points and opener power levels for safe operation.

Testing Safety Systems and Basic Operation

Verifies safety reversal and sensor functions, and explains opener use.

Troubleshooting and Programming

Routine Maintenance and Troubleshooting

Details regular checks, lubrication, and provides solutions for common problems.

Programming Remotes and Keyless Entry

Guides on adding remotes and setting keyless entry PINs.

Parts, Accessories, and Warranty

Repair Parts and Accessories

Lists available replacement parts and optional accessories.

Warranty Information

Outlines the terms and conditions of the product warranty.