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The Chamberlain Group, Inc.
A DUCHOSSOIS ENTERPRISE
845 Larch Avenue
Elmhurst, Illinois 60126-1196
Cover Art - Liftmaster Combined Manual USA
Models 5100, 4100, 4100-2, 710-2, 2100, 1100
5/21/92
Model 5100 -2K - 1/2 HP Series 4100 - 1/2HP
Series 710 WHC - 1/2HP
Series 2100 -1/3HP Series 1100-1/4HP
Complies with UL 324
Regulations effective
January 1, 1993.
Garage Door Opener
Owner’s Manual
For Residential Use Only
Model 5100-2K – 1/2HP
■ Please read this manual and the enclosed safety materials carefully!
■ Fasten the manual near the garage door after installation.
■ The door WILL NOT CLOSE unless the Protector System
®
is connected and
properly aligned.
■ Periodic checks of the opener are required to ensure safe operation.
■ The model number label is located on the front end panel of your opener.
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