Chamberlain RJO20 RJO20 Owner s Manual - English - Page 32

Maintenance Care of Your Garage Door 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 and closes fully. Adjust limits and/or force if necessary (see Adjustment Steps 1 and 2). • Repeat the safety reverse test. Make any necessary adjustments (see Adjustment Step 3). Once a Year • Oil door rollers, bearings and hinges. The garage door opener does not require additional lubrication. Do not grease the door tracks. THE REMOTE CONTROL BATTERY The 3V CR2032 Lithium battery should produce power for up to 3 years. If the battery is low, the remote control's LED will not flash when the button is pressed. To replace battery, pry open the case first in the middle (1), then at each side (2 and 3) with the visor clip. Replace the batteries with only 3V CR2032 coin cell batteries. Insert battery positive side up. Dispose of old batteries properly. 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 32