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General| Brand | Chamberlain |
|---|---|
| Model | 3112EM FS2 |
| Category | Garage Door Opener |
| Language | English |
Assembles the T-rail and attaches the cable pulley bracket for sectional and one-piece doors.
Assembles the T-rail and attaches the cable pulley bracket for sliding and swinging gates.
Installs the trolley assembly onto the T-rail for sectional and one-piece doors.
Installs the trolley assembly onto the T-rail for sliding and swinging gates.
Secures the assembled T-rail to the motor unit using specific bolts and a cover protection bolt.
Installs the chain/cable and attaches the sprocket cover for sectional and one-piece doors.
Installs the chain/cable and attaches the sprocket cover for sliding and swinging gates.
Adjusts the chain tension for proper operation and secures the trolley threaded shaft.
Provides critical safety warnings and general instructions for the garage door opener installation.
Guides on determining the correct header bracket mounting location for sectional and tracked doors.
Details header bracket location for one-piece doors without track, including measurements.
Instructions for mounting the header bracket to the wall or ceiling, including hardware details.
Connects the assembled T-rail to the header bracket using clevis pin and ring fastener.
Details electrical connection requirements, including grounding and permanent wiring options.
Instructions for fastening the door bracket to sectional doors, including reinforcement needs.
Tests the safety reversal system by checking door reversal on contact with an obstruction.
Provides critical safety warnings and guidelines for operating the garage door opener.
