Table Of Contents; Introduction; Safetysymboland Signal Wordreview - 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
Fastenthe rail to the motor unit and
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 lights ..................................... 18
Attach the emergency releaserope and handle.............. 18
Electrical requirements ................................ 19
Install The Protector System®........................ 20-22
Fastenthe 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
Operationsafety instructions ........................... 30
Using your garage door opener ......................... 30
Using the wall-mounted door control ..................... 31
To open the door manually ............................. 31
Careof 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 KeylessEntry PIN ........... 36
Repair Parts 37-38
Rail assembly parts................................... 37
Installation parts ..................................... 37
Motor unit assembly parts ............................. 38
Accessories 39
Warranty
Repair Partsand Service
39
Back cover
INTRODUCTION
SafetySymboland Signal WordReview
This garage door opener has been designed and tested to offer safe service provided it is installed, operated, maintained and tested in
strict accordancewith the instructions and warnings contained in this manual.
Mechanical
Electrical
When you seethese 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
mechanicalor from electric shock. Readthe warnings carefully.
When you seethis Signal Word on the following pages, it will
alert you to the possibility of damageto your garage door and/or
the garage door opener if you do not comply with the cautionary
statements that accompany it. Readthem carefully.