Assembly step 2, Assembly step 3, Fasten the rail to the opener – Craftsman 1/2 HP GARAGE DOOR OPENER 139.53978SRT User Manual

Page 9: Install the idler pulley

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Assembly step 2, Assembly step 3, Fasten the rail to the opener | Install the idler pulley | Craftsman 1/2 HP GARAGE DOOR OPENER 139.53978SRT User Manual | Page 9 / 40 Assembly step 2, Assembly step 3, Fasten the rail to the opener | Install the idler pulley | Craftsman 1/2 HP GARAGE DOOR OPENER 139.53978SRT User Manual | Page 9 / 40
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