Maintenance; Care Of Your Garage Door Opener; Maintenance Schedule; The Remote Control Battery - LiftMaster 8500 Manual Del Usuario

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 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
3
1
2
29
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.