Chamberlain 3885C - Manuel (Page 2)

Introduction 2-5
Safety symbol and signal word review........................2
Preparing your garage door ........................................3
Tools needed ...............................................................3
Planning .....................................................................4
Carton inventory ..........................................................5
Hardware inventory .....................................................5
Assembly 6-7
Attach the rail to the motor unit ...................................6
Set the belt tension .....................................................6
Attach the belt cap retainer .........................................7
Installation 7-22
Installation safety instructions .....................................7
Determine the header bracket location .......................8
Install the header bracket............................................9
Attach the rail to the header bracket.........................10
Position the opener ...................................................11
Hang the opener .......................................................12
Install the control console..........................................13
Install the light ...........................................................14
Attach the emergency release rope and handle .......14
Electrical requirements..............................................15
Install the Protector System ® ................................16-18
Fasten the door bracket .......................................19-20
Connect the door arm to the trolley .....................21-22
Adjustment 23-25
Adjust the travel limits ...............................................23
Adjust the force .........................................................24
Test the safety reversal system.................................25
Test the Protector System ® ........................................25
Operation 26-31
Operation safety instructions.....................................26
Using your garage door opener ................................26
Using the wall-mounted control console ...................27
To open the door manually........................................28
Care of your opener ..................................................29
Having a problem? ....................................................30
Diagnostic chart.........................................................31
Programming 32-33
To add or reprogram a hand-held remote control .....32
To erase all codes from motor unit memory..............32
3-Button remotes.......................................................32
To add, reprogram or change
a Keyless Entry PIN ..................................................33
Repair Parts 34-35
Rail assembly parts ...................................................34
Installation parts ........................................................34
Motor unit assembly parts .........................................35
Accessories 36
Notes 37-39
Repair Parts and Service 40
Warranty 40
TABLE OF CONTENTS
When you see these Safety Symbols and Signal
Words on the following pages, they will alert you to
the possibility of serious injury or death if you do
not comply with the warnings that accompany them.
The hazard may come from something mechanical
or from electric shock. Read the warnings carefully.
When you see this Signal Word on the following
pages, it will alert you to the possibility of damage to
your garage door and/or the garage door opener if
you do not comply with the cautionary statements
that accompany it. Read them carefully.
INTRODUCTION
Safety Symbol and Signal Word
Review
This garage door opener has been designed and tested to offer safe service provided it is installed, operated,
maintained and tested in strict accordance with the instructions and warnings contained in this manual.
Mechanical
Electrical
WARNING
CAUTION WARNING
WARNING
WARNING
CAUTION WARNING
WARNING
WARNING
CAUTION WARNING
WARNING
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