Table Of Contents; Introduction; Safetysymboland Signal Wordreview - Craftsman 139.536481DM Owner's Manual

TABLE OF CONTENTS
Introduction 2-5
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 attach the pulley bracket .............. 8
Install the trolley ...................................... 9
Attach the rail to the motor unit .......................... 9
Install the chain/cable and the sprocket cover .............. 10
Tighten the chain and cable ............................ 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 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 eraseall 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
RepairParts and 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
Whenyou 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 hazardmay come from something
mechanical or from electric shock. Readthe warnings carefully.
Whenyou see this 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.