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 1156- 1/2HP

Model 1150- 1/3HP

Model 1146 - 1/3HP

Model 1155 - 1/2HP

Model 1140- 1/4HP

 

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 interferencethat may cause undesired operation.

CONTENTS

PAGE

CONTENTS

PAGE

Safety Rules .............................................................

2

Limit Adjustment.......................................................

20

Carton Inventory .......................................................

3

Force Adjustment......................................................

21

Features of Your Opener...........................................

3

Safety Reverse Test..................................................

22

Specifications ...........................................................

3

The Protector System.............................................

22

Accessories ..............................................................

4

Setting/Changing Code .............................................

23

Completed Installation Illustration .............................

5

Having a Problem? ...................................................

24

Installation Information .............................................

5

Repair Parts, Rail Assembly......................................

26

Operation of Your Opener .........................................

6

Repair Parts, Installation...........................................

26

Care and Maintenance of Your Opener......................

7

Repair Parts, Opener Assembly ................................

27

Assembly..................................................................

8

How To Order Repair Parts.......................................

28

Installation ................................................................

10

Warranty ..................................................................

28

FASTEN THIS MANUAL NEAR THE GARAGE DOOR AFTER INSTALLATION.

PERIODIC CHECKS OF THE OPENER ARE REQUIRED TO INSURE SATISFACTORY OPERATION.