User manual CHAMBERLAIN MOTORLIFT 4000

[. . . ] Garage doors, door springs, cables, pulleys, brackets and their hardware are under extreme tension and can cause serious personal injury. Do not attempt to loosen, move or adjust them. Do not wear rings, watches or loose clothing while installing or servicing a garage door opener. To avoid serious personal injury from entanglement, remove all ropes connected to the garage door before installing the door opener. [. . . ] Determine the position of the Close Limit Switch (1) (Long wire) by aligning the center of trolley and the center of the Limit Switch. The Limit Switches are actuated by a magnet in the Inner Trolley. Insert bottom tab (5) of Limit Switch (1) into bottom lip of Rail (7). Insert top tab (4) under top lip of Rail (6). Lift limit assembly against top lip of Rail and tighten screw (8) to secure Close Limit Switch. Open garage door by hand to the full open position. Pull red handle to open door past Inner Trolley. Determine the position of the Open Limit Switch (3) (Short Wire) by aligning the center of the Trolley and the center of the Limit Switch. Insert bottom tab (5) of Limit Switch (1) into bottom lip of rail (7). Insert top tab (4) under top lip of rail (6). Lift limit assembly against top lip of rail and tighten screw (8) to secure Open Limit Switch. A convenient place is beside the service door and out of reach of children. Multifunction Door Control (optional): Insert a small flat head screwdriver into the top of the Wall Control (10), gently pry the cover off. Fasten to an inside garage wall with sheet metal screws (8) as follows: · Install bottom screw, allowing 3mm to protrude from the wall. · Position bottom of door control over screw head and adjust for snug fit. · Install top screw with care to avoid cracking plastic housing. · Replace cover by inserting bottom tabs (9) and snapping into place. To remove cover after mounting, gently pry at top with paper clip or small flat head screwdriver. Run the bell wire up the wall and across the ceiling to the garage door opener. Use insulated staples (5) to secure wire. The opener Quick-Connect Terminals (7) are located in the recess next to the learn button on the left side panel. Insert bell wire into holes in the Quick Connect Terminals as follows: Red/White to Red and White to White. Wiring the Backlit Door Control Button or the (optional) Multi-Function Door Control Panel Replace light bulb (1) with a 21 watt ma-mum light bulb. [. . . ] Do not dispose of the old battery with household waste. Take batteries to · If problem occurs on first operation at opener, door may be locked. Opener won't activate due to power failure: Maintaining Your Opener · Pull Manual Release Handle to disconnect Trolley. The next time opener is activated, the Trolley will reconnect. [. . . ]