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RESETTING FACTORY DEFAULTS -
CLEARING MEMORY
To reset most of the user installed settings back to factory
defaults:
1. Turn the selector dial to DIAGNOSTIC.
2. Press and hold the STOP button for 5 seconds. The MAS LED
will flash momentarily when the factory defaults have been
restored.
3. Return the selector dial to the desired wiring type.
Factory Defaults:
a. Timer to close = 0 seconds
b. CPS-L photo eyes = unlearned
c. The Mid Stop is deactivated
d. The Maintenance Alert System is deactivated
e. The Maximum Run Timer is set to 90 seconds
Operation will vary
depending on
wiring type
SELECTOR DIAL
MAINTENANCE SCHEDULE
For use with Maintenance Alert System.
Check at the intervals listed in the following chart:
ITEM
Drive Chain
Sprockets
Clutch
Belt
Fasteners
Manual Disconnect
Bearings and Shafts
PROCEDURE
Check for excessive slack.
Check and adjust as required.
Lubricate.
Check set screw tightness.
Check and adjust as required.
Check condition and tension.
Check and tighten as required.
Check and operate.
Check for wear and lubricate.
EVERY 3 MONTHS
OR
5,000 CYCLES
EVERY 6 MONTHS
OR
10,000 CYCLES
EVERY 12 MONTHS
OR
20,000 CYCLES
HOW TO ORDER REPAIR PARTS
OUR LARGE SERVICE ORGANIZATION SPANS AMERICA
Installation and service information are available.
Call our TOLL FREE number:
1-800-528-2806
www.liftmaster.com
OPTIONAL PROGRAMMING
Use SAE 30 Oil (Never use grease or silicone spray).
• Do not lubricate motor. Motor bearings are rated for
continuous operation.
• Do not lubricate clutch or V-belt.
Repeat ALL procedures.
Inspect and service whenever a malfunction is observed or
suspected.
To avoid SERIOUS PERSONAL INJURY or DEATH from
electrocution, disconnect ALL electric power BEFORE
performing ANY maintenance.
WARNING
CAUTION
WARNING
WARNING