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General| Model Number | 139.18887 |
|---|---|
| Type | Garage Door Opener |
| Horsepower | 1/2 HP |
| Frequency | 60 Hz |
| Safety Sensors | Yes |
| Max Lift Power | 1/2 HP |
| Voltage | 120V |
| Maximum Door Height | 7 ft |
Provides critical safety guidelines and warnings specifically for installing the garage door opener.
Emphasizes the importance and safety aspects of the garage door opener's reversing sensor system.
Consolidates essential safety guidelines for operating and maintaining the garage door opener.
Warns about potential hazards during opener operation, especially concerning springs and obstructions.
Connects the T-rail sections and attaches the belt pulley bracket to the front of the T-rail.
Installs the trolley onto the T-rail and secures the T-rail assembly to the opener unit.
Outlines necessary electrical connections, grounding, and permanent wiring procedures.
Provides detailed steps for mounting and aligning the safety reversing sensor units.
Explains how to set the opener's upper and lower travel limits for proper door movement.
Details how to adjust the opener's force settings to ensure safe and effective door operation.
Provides procedures for testing the safety reversing sensor and the overall safety reverse system functionality.
Explains how to program additional remotes and keyless entry systems to the opener receiver.
