Attach rail brackets, Important installation instructions, Warning – Chamberlain 2000SDR 1/2 HP User Manual

Page 7: Assembly step 3

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Attach rail brackets, Important installation instructions, Warning | Assembly step 3 | Chamberlain 2000SDR 1/2 HP User Manual | Page 7 / 36 Attach rail brackets, Important installation instructions, Warning | Assembly step 3 | Chamberlain 2000SDR 1/2 HP User Manual | Page 7 / 36
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