The Remote Control Battery; Care Of Your Garage Door Opener; Maintenance Schedule - Chamberlain 4142DC Manual Del Usuario

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 & closes fully. Adjust limits and/or
force if necessary (see pages 29 and 30).
• Repeat the safety reverse test. Make any necessary adjustments
(see page 31).
Twice a Year
• Check chain tension. Disconnect trolley first. Adjust if necessary
(see page 15).
Once a Year
• Oil door rollers, bearings and hinges. The opener does not
require additional lubrication. Do not grease the door tracks.

THE REMOTE CONTROL BATTERY

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 3V2032 coin batteries.
• DO NOT recharge, disassemble, heat above 100°C (212°F)
or incinerate.
The lithium battery should produce
power for up to 5 years. To replace
battery, use the visor clip or
screwdriver blade to pry open the
case as shown. Insert battery positive
side up. Dispose of old battery
properly.
NOTICE: To comply with FCC and/or Industry Canada (IC) rules, adjustment or modifications of this receiver
and/or transmitter are prohibited, except for changing the code setting or replacing the battery. THERE ARE
NO OTHER USER SERVICEABLE PARTS.
Tested to Comply with FCC Standards FOR HOME OR OFFICE USE. Operation is subject to the following two
conditions: (1) this device may not cause harmful interference, and (2) this device must accept any
interference received, including interference that may cause undesired operation.
34
Battery
positive
side up (+)