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General| Model Number | 139.18452DM |
|---|---|
| Brand | Craftsman |
| Category | Garage Door Opener |
| Horsepower | 1/2 HP |
| Voltage | 120V |
| Frequency | 60 Hz |
| Remote Controls Included | 2 |
| Keyless Entry | Yes |
| Battery Backup | No |
| Max Door Height | 7 ft |
| Safety Features | Safety Sensors |
Guides on assembling the opener rail and installing the trolley.
Instructions for securely attaching the rail to the motor unit.
Steps for installing the idler pulley into the rail assembly.
Details on how to install the drive chain and cable onto the opener.
Instructions for adjusting and tightening the drive chain tension.
Guidance on selecting the correct position for the header bracket.
Instructions for mounting the header bracket to the wall or ceiling.
Steps for connecting the opener rail to the installed header bracket.
How to set the points where the garage door stops when opening or closing.
How to adjust the force settings for smooth and safe door operation.
Procedures to verify the safety reversal system functions correctly.
Tests to confirm the safety reversing sensors are working properly.
