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Lift-Master
The Chamberlain Group, Inc.
A DUCHOSSOIS ENTERPRISE
845 Larch Avenue, Elmhurst, Illinois 60126
Garage Door Opener
Owner's Manual
FOR RESIDENTIAL USE ONLY
Model 1160- 1/2 HP
Model 1150- 1/3HP
Model 1156- 1/2HP
Model 1146 - 1/3HP
Model 1155 - 1/2HP
Model 1145- 1/3HP
CAUTION! PLEASE READ THIS MANUAL CAREFULLY
The MODEL NUMBER label is located on the front panel of your opener
THIS DEVICE COMPLIES WITH FCC RULES PART 15. Operation of this device is subject to the following two conditions: 1. This device
may not cause harmful interference. 2.This device must accept any interference that may be received including interference
that may cause
undesired operation.
FASTEN THIS MANUAL NEAR THE GARAGE DOOR AFTER INSTALLATION.
PERIODIC CHECKS OF THE OPENER ARE REQUIRED TO INSURE SATISFACTORY OPERATION.
CONTENTS PAGE
Safety Rules ............................................................. 2
Carton Inventory ....................................................... 3
Features of Your Opener........................................... 3
Specifications ........................................................... 3
Accessories .............................................................. 4
Completed Installation Illustration ............................. 5
Installation Information ............................................. 5
Operation of Your Opener......................................... 6
Care and Maintenance of Your Opener...................... 7
Assembly.................................................................. 8
Installation................................................................ 10
CONTENTS PAGE
Limit Adjustment....................................................... 20
Force Adjustment...................................................... 21
Safety Reverse Test..................................................22
The Protector System............................................. 22
Setting/Changing Code............................................. 23
Having a Problem? ................................................... 24
Repair Parts, Rail Assembly...................................... 26
Repair Parts, Installation........................................... 26
Repair Parts, Opener Assembly ................................ 27
How To Order Repair Parts....................................... 28
Warranty .................................................................. 28
Model 1140- 1/4HP