Assembly step 4, Be sure the chain is not twisted – Craftsman 1/2 HP GARAGE DOOR OPENER 139.53978SRT User Manual

Page 10

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Assembly step 4, Be sure the chain is not twisted | Craftsman 1/2 HP GARAGE DOOR OPENER 139.53978SRT User Manual | Page 10 / 40 Assembly step 4, Be sure the chain is not twisted | Craftsman 1/2 HP GARAGE DOOR OPENER 139.53978SRT User Manual | Page 10 / 40
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