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General| Type | Garage Door Opener |
|---|---|
| Model Number | 139.53661SRT3 |
| Drive System | Belt Drive |
| Horsepower | 1/2 HP |
| Voltage | 120V |
| Frequency | 60 Hz |
| Remote Controls | 2 |
| Max Door Height | 7 ft |
| Safety Features | Safety sensors |
| Belt Type | Belt |
Lists the necessary hand tools for assembly, installation, and adjustment of the opener.
Outlines pre-installation checks and requirements for sectional and one-piece garage doors.
Lists hardware components for assembly, installation, and safety sensors.
Covers T-rail, trolley, chain, and sprocket assembly and chain tension adjustment.
Guides on finding and securely mounting the header bracket.
Covers attaching the T-rail, positioning the opener, and hanging it securely.
Covers installation of door control, light, and electrical connection safety.
Guides through physical installation and proper alignment of safety sensors.
Lists common problems with safety sensors and their solutions.
Details attaching the door bracket for sectional and one-piece doors.
Connects door arms and covers one-piece door adjustment procedures.
Guides on setting door travel limits and adjusting opener force settings.
Verifies the functionality of safety sensors and the door's reverse mechanism.
Consolidates critical safety guidelines for using the opener.
Provides guidance on opener maintenance, remote care, and a schedule for tasks.
Explains operation via door controls, lights, and lockout features.
Guides on programming remotes, keyless entry, and controlling the opener light.
Refers to parts diagrams for components of the rail and opener assemblies.
