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1240R - 1/4HP
Chamberlain 1240R - 1/4HP User Manual
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The Chamberlain Group, Inc.
845 Larch
Avenue
Elmhurst, Illinois 60126-1
196
www
.liftmaster
.com
GARAGE DOOR OPENER
Model Series 1200
For Residential Use Only
®
Owner’s
Manual
■
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 panel of your opener
.
®
Model 1256R - 1/2HP
Model 1246R - 1/3HP
Model 1255R - 1/2HP
Model 1245R - 1/3HP
Model 1240R - 1/4HP
2
Table of Contents
Introduction
2
Table of Contents
2
Safety Symbol and Signal Word Review
2
Preparing Your Garage Door
3
Tools Needed
3
Planning
4
Planning
5
Carton Inventory
6
Hardware Inventory
7
Assembly
8
Fasten the Rail to the Motor Unit
8
Install the Chain and the Sprocket Cover
8
Install the Chain Spreader and the Chain
10
Assembly
11
Installation
11
Installation Safety Instructions
11
Tighten the Chain
11
Determine the Header Bracket Location
12
Install the Header Bracket
14
Attach the Rail to the Header Bracket
15
Position the Opener
16
Hang the Opener
17
Install the Door Control
18
Attach the Emergency Release Rope and Handle
19
Install the Light and Lens
19
Electrical Requirements
20
Install the Protector System
21
Caution
24
Fasten the Door Bracket
24
Connect Door Arm to Trolley
26
Connect the Door Arm to the Trolley
27
Adjust the Travel Limits
28
Adjust the Force
29
Adjustment
29
Test the Protector System
30
Test the Safety Reversal System
30
Operation
31
Operation Safety Instructions
31
Using Your Garage Door Opener
31
To Open the Door Manually
32
Using the Wall-Mounted Door Control
32
Care of Your Garage Door Opener
33
Having a Problem
34
Operation
34
3-Button Remotes
35
Add/Reprogram Hand-Held Remote Control
35
Programming
35
To Add or Reprogram a Hand-Held Remote Control
35
To Erase All Codes
35
To Add, Reprogram or Change a Keyless Entry PIN
36
Using Learn Button
36
Using Multi-Function Door Control
36
Installation Parts
37
Rail Assembly Parts
37
Repair Parts
37
Motor Unit Assembly Parts
38
Accessories
39
Repair Parts and Service
40
Warranty
40
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Chamberlain 1240R - 1/4HP Specifications
General
Brand
Chamberlain
Model
1240R - 1/4HP
Category
Garage Door Opener
Language
English
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