Maintenance; Care Of Your Garage Door Opener - Chamberlain RJO20C Manual

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
3
1
2
32
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.