LiftMaster 8500W Owners Manual - Page 31

Maintenance Care of Your Garage Door Opener MAINTENANCE SCHEDULE EVERY MONTH • Manually operate door. If it is unbalanced or binding, call a trained door systems technician. • Check to be sure door opens and closes fully. Adjust limits if necessary (see Adjustment Step 1). • Repeat the safety reversal test. Make any necessary adjustments (see Adjustment Step 2). EVERY YEAR • Oil door rollers, bearings and hinges. The garage door opener does not require additional lubrication. Do not grease the door tracks. EVERY TWO TO THREE YEARS • Use a rag to wipe away the existing grease from the garage door opener rail. Reapply a small layer of white lithium grease to the top and underside of the rail surface where the trolley slides. myQ Remote LED Light • Unplug the light before cleaning. • Use a lightly dampened cloth for cleaning. • DO NOT use liquid cleaners on the light lens. THE REMOTE CONTROL BATTERY The LED(s) on your remote control will stop flashing when the battery is low and needs to be replaced. To replace battery, open the case as shown. Insert battery positive side up (+). Replace the battery with only 3V CR2032 coin cell batteries. Dispose of old battery properly. Pry open the case first in the middle (1), then at each side (2 and 3) with the visor clip. 3V CR2032 To prevent possible SERIOUS INJURY or DEATH: • NEVER allow small children near batteries. • If battery is swallowed, immediately notify doctor. To reduce risk of fire, explosion or chemical burn: • Replace ONLY with 3V CR2032 coin batteries. • DO NOT recharge, disassemble, heat above 212° F (100° C) or incinerate. 3 1 2 31