Steel-Craft 1255SCR User Manual

GARAGE DOOR OPENER
Model 1255SCR – 1/2 HP
1245SCR – 1/3 HP
For Residential Use Only
®
Owner’s Manual
■ Please read this manual and the enclosed safety materials carefully!
■ Fasten the manual near the garage door after installation.
■ The door WILL NOT CLOSE unless the Protector System
®
is connected and
properly aligned.
■ Periodic checks of the opener are required to ensure safe operation.
■ The model number label is located on the front panel of your opener.

Steel-Craft 1255SCR Specifications

General

Brand	Steel-Craft
Model	1255SCR
Category	Garage Door Opener
Language	English

Summary

Introduction to Garage Door Openers

Safety Symbol and Signal Word Review

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

Installation Preparation Steps

Preparing Your Garage Door for Installation

Details how to balance and test the garage door before opener installation.

Garage Door Opener Assembly

Attach T-Rail to Motor Unit

Step-by-step guide for connecting the T-rail to the main motor unit.

Attach Chain and Sprocket Cover

Instructions for mounting the chain onto the sprocket and securing the cover.

Assembly Step 3: Tighten the Chain

Critical Installation Warnings

Determine Header Bracket Location

Sectional & One-Piece Door with Track Location

Guidance on determining header bracket location for specific door types.

Determine Header Bracket Location for One-Piece Door without Track

Installing the Header Bracket

Wall Mount Header Bracket Installation

Ceiling Mount Header Bracket Installation

Attach T-Rail to Header Bracket

Positioning the Garage Door Opener

Sectional/One-Piece Door with Track Opener Positioning

One-Piece Door without Track Opener Positioning

Hanging the Garage Door Opener

Installing the Door Control

Attaching the Emergency Release Handle

Electrical Requirements and Wiring

Installing The Protector System® Safety Sensors

Mounting Safety Sensor Brackets

Door Track Mount for Sensor Brackets

Wall Mount for Sensor Brackets

Floor Mount for Sensor Brackets

Wiring and Aligning Safety Sensors

Mounting and Wiring Safety Sensors

Connecting wires and mounting the safety sensor units.

Aligning Safety Reversing Sensors

Procedure to align sensors for proper beam detection.

Fastening the Door Bracket

Sectional Door Bracket Fastening

Fastening Door Bracket for One-Piece Doors

Connecting Door Arm to Trolley

Sectional Door Arm Connection

Connecting Door Arm for One-Piece Doors

Adjusting Travel Limits

Adjusting Door Force Settings

Testing Safety Systems

Testing the Safety Reversal System

Procedure to verify the safety reversal system's functionality.

Testing the Protector System® Sensors

How to test the operation of the safety reversing sensors.

Garage Door Opener Operation

Important Safety Instructions for Operation

Critical safety guidelines for operating the garage door opener.

Using Your Garage Door Opener

Manual Door Operation

Troubleshooting Common Opener Problems

Troubleshooting Opener and Door Issues

Programming Your Garage Door Opener

Adding a Hand-Held Remote Control

Programming Keyless Entry PINs