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General| Brand | Craftsman |
|---|---|
| Model | 315 SERIES 139.53939D |
| Category | Garage Door Opener |
| Language | English |
Presents critical safety warnings and essential instructions to follow before and during garage door opener installation.
Explains how to determine the correct mounting location for the header bracket based on door type and travel height.
Provides instructions for securely mounting the header bracket to either the wall or the ceiling.
Details the process of connecting the garage door opener rail to the installed header bracket using a clevis pin.
Guides on positioning the opener unit correctly relative to the garage door for both sectional and one-piece doors.
Instructs on how to securely hang the opener motor unit from structural supports using hanging brackets.
Outlines the electrical requirements, including grounding and permanent wiring procedures, for the garage door opener.
Explains the importance and procedure for installing the safety reversing sensors to prevent injury from a closing door.
Instructs on how to attach the door bracket to the garage door, including considerations for reinforcement.
Details how to connect the door arm sections to the trolley and door bracket for sectional doors.
Explains how to set the open and closed travel limits for the garage door opener using control buttons.
Guides on adjusting the force settings required to open and close the garage door properly.
Details how to test the safety reversal system by checking its response to an obstruction.
