Table Of Contents; Introduction; Safety Symbol And Signal Word Review - Craftsman 139.53920DM Owner's Manual

TABLE OF CONTENTS
Introduction 2-7
Safety symbol and signal word review ....................... 2
Preparing your garage door ....................................... 3
Tools needed .............................................................. 3
Planning ................................................................. 4-5
Carton inventory ......................................................... 6
Hardware inventory .................................................... 7
Assembly 8-11
Assemble the rail and install the trolley ...................... 8
Fasten the rail to the motor unit ................................. 9
Install the idler pulley .................................................. 9
Install the chain/cable ............................................... 10
Tighten the chain ....................................................... 11
Installation 11.26
Installation safety instructions ................................... 11
Determine the header bracket location .................... 12
Install the header bracket ......................................... 13
Attach the rail to the header bracket ........................ 14
Position the opener .................................................. 15
Hang the opener ....................................................... 16
Install the door control .............................................. 17
Install the light .......................................................... 18
Attach the emergency release rope and handle ...... 18
Electrical requirements ............................................. 19
Install The Protector System ®.............................. 20-22
Fasten the door bracket ...................................... 23-24
Connect the door arm to the trolley ..................... 25-26
Adjustment 27-29
Adjust the travel limits .............................................. 27
Adjust the force ........................................................ 28
Test the safety reversal system ................................ 29
Test The Protector System ®..................................... 29
Operation 30.34
Operation safety instructions .................................... 30
Using your garage door opener ............................... 30
Using the wall-mounted Door Control ...................... 31
To open the door manually ....................................... 31
Care of your garage door opener ............................. 32
Having a problem? ................................................... 33
Diagnostic chart ........................................................ 34
Programming 35.36
To add or reprogram a hand-held remote control .... 35
To erase all codes .................................................... 35
3-Function Remotes ................................................. 35
To add, reprogram or change
a Keyless Entry PIN ................................................. 36
Repair Parts 37.38
Rail assembly parts .................................................. 37
Installation parts ....................................................... 37
Motor unit assembly parts ........................................ 38
Accessories 39
Warranty 39
Repair Parts & Service Backcover
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
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.