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1) attach the rail to the opener, 2) attach the chain to the sprocket, Install the rail support bracket – Master Lock ATS 211 User Manual

Page 6: Warning, Assembly step 1, Assembly step 2, Attach the rail to the opener

1) attach the rail to the opener, 2) attach the chain to the sprocket, Install the rail support bracket | Warning, Assembly step 1, Assembly step 2, Attach the rail to the opener | Master Lock ATS 211 User Manual | Page 6 / 32 1) attach the rail to the opener, 2) attach the chain to the sprocket, Install the rail support bracket | Warning, Assembly step 1, Assembly step 2, Attach the rail to the opener | Master Lock ATS 211 User Manual | Page 6 / 32