Attach the rail to the header bracket, Position the opener, Installation step 3 – Chamberlain CG40DM User Manual

Page 14: Installation step 4, One-piece door without track

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Attach the rail to the header bracket, Position the opener, Installation step 3 | Installation step 4, One-piece door without track | Chamberlain CG40DM User Manual | Page 14 / 40 Attach the rail to the header bracket, Position the opener, Installation step 3 | Installation step 4, One-piece door without track | Chamberlain CG40DM User Manual | Page 14 / 40
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