DR Power Walk-Behind Pro (1985 - 2000) - Manual (Page 5)

Table of Contents
SAFETY INSTRUCTIONS ...............................................................................................................................................5
Dress Appropriately.........................................................................................................................................................5
Preparation.......................................................................................................................................................................5
Operating the Machine Safely .........................................................................................................................................5
Safety with Gas-Powered Machines ................................................................................................................................6
Warning to All California and Other Users .....................................................................................................................6
TRIMMER PARTS & COMPONENTS ..........................................................................................................................7
ASSEMBLY COMPONENTS...........................................................................................................................................8
ASSEMBLY ........................................................................................................................................................................9
STARTING & OPERATING ..........................................................................................................................................15
Electric-Starting .............................................................................................................................................................15
Manual-Starting .............................................................................................................................................................15
Stopping the Engine.......................................................................................................................................................16
Engaging the Trimmer Head..........................................................................................................................................16
Stopping the Cords Spinning .........................................................................................................................................16
Using the Parallel Trimming Action (PTA
™ ) Feature ...................................................................................................17
Cutting Cords.................................................................................................................................................................18
TRIMMING AND MOWING METHODS....................................................................................................................19
Obstacles........................................................................................................................................................................19
Using the Parallel Trimming Action (PTA
™ ) Feature ...................................................................................................19
Mow-Ball ™ Support.......................................................................................................................................................20
Cutting Cords.................................................................................................................................................................20
Adjusting the Cutting Height .........................................................................................................................................21
Wagner Anti-Wrap Device ............................................................................................................................................23
Heavy Growth................................................................................................................................................................23
Wet Conditions ..............................................................................................................................................................24
Very Dry Conditions......................................................................................................................................................24
Slopes.............................................................................................................................................................................24
Windrows.......................................................................................................................................................................24
Firebreaks ......................................................................................................................................................................24
End-of-Season Garden Clean-Up ..................................................................................................................................24
MAINTENANCE..............................................................................................................................................................25
Regular Maintenance .....................................................................................................................................................25
Battery Care (Electric-Starting Models Only) ...............................................................................................................26
To Remove the Mow-Ball
™ Support Assembly ............................................................................................................27
To Reassemble the Mow-Ball ™ Support Assembly.......................................................................................................28
To Partially Lower the Bearing Housing Assembly (to remove debris) ........................................................................29
To Check the Bearing Housing Assembly for Damage .................................................................................................29
To Remove and Replace the Bearing Housing Assembly .............................................................................................30
To Replace the Belt .......................................................................................................................................................32
To Adjust the Belt Tension through the Trimmer Control Cable ..................................................................................33
To Adjust the PTA
™
Feature .........................................................................................................................................34
TROUBLESHOOTING ...................................................................................................................................................35
PARTS LIST .....................................................................................................................................................................39
SCHEMATIC DRAWINGS ............................................................................................................................................40