LiftMaster HCTDCUL Owners Manual - English French - Page 12
Step 4 Mount the Operator, bracket to the wall.
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INSTALLATION Step 4 Mount the Operator 1. Place the motor unit on packing material to protect the cover. Make sure the header bracket is in the center of the opening. Bolt or weld the header bracket to the wall. Header Bracket Header Bracket 2. Lift the operator and align with center mark on ceiling. Have someone hold the operator in place or use a post as a temporary support. Bolt the operator to the ceiling. (A support post is not part of the operator. Use only for installation.) NOTE: The HCT14 and HCT16 rails have an additional mounting hole in the middle of the rail for installing an additional support bracket (not included). Concrete Anchor 1/2" x 3 1/2" Brackets (not provided) 3. Bolt or weld arm to gate/door. Temporary Support Post Flush Mount Arm Door Arm 12
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