One-piece door without track, 2) attach the t-rail to header bracket, Installation step 2 – Chamberlain 1145-1/3HP User Manual

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One-piece door without track, 2) attach the t-rail to header bracket, Installation step 2 | Chamberlain 1145-1/3HP User Manual | Page 11 / 28 One-piece door without track, 2) attach the t-rail to header bracket, Installation step 2 | Chamberlain 1145-1/3HP User Manual | Page 11 / 28
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