LiftMaster 3850 3850 Elite Series Manual - Page 30

To Open the Door Manually To prevent possible SERIOUS INJURY or DEATH from a falling garage door: • If possible, use emergency release handle to disengage trolley ONLY when garage door is CLOSED. Weak or broken springs or unbalanced door could result in an open door falling rapidly and/or unexpectedly. • NEVER use emergency release handle unless garage doorway is clear of persons and obstructions. • NEVER use handle to pull door open or closed. If rope knot becomes untied, you could fall. Care of Your Opener MAINTENANCE SCHEDULE Once a Month • Manually operate door. If it is unbalanced or binding, call a trained door systems technician. • Check to be sure door opens & closes fully. Adjust limits and/ or force if necessary (see pages 23 and 24). • Repeat the safety reverse test. Make any necessary adjustments (see Adjustment Step 3). Once a Year • Oil door rollers, bearings and hinges. The opener does not require additional lubrication. Do not grease the door tracks. The door should be fully closed if possible. Pull down on the emergency release handle and lift the door manually. To reconnect the door to the opener, press the door control push bar. Emergency Release Handle (Pull Down) Trolley Release Arm NOTICE The lockout feature prevents the trolley from reconnecting automatically. Pull the emergency release handle down and back (toward the opener). The door can then be raised and lowered manually as often as necessary. To disengage the lockout feature, pull the handle straight down. The trolley will reconnect on the next UP or DOWN operation, either manually or by using the door control or remote. MANUAL DISCONNECT POSITION Trolley Release Arm Emergency Release Handle (Down and Back) NOTICE LOCKOUT POSITION 30