DR Power Sprint (1985 - 2000) - Manual (Page 5)

DR
®
TRIMMER/MOWER
™
Assembly & Operating Instructions iii
Table of Contents
SAFETY INSTRUCTIONS ...............................................................................................................................................1
Dress Appropriately.........................................................................................................................................................1
Preparation.......................................................................................................................................................................1
Operating the Machine Safely .........................................................................................................................................1
Safety with Gas-Powered Machines ................................................................................................................................2
Warning to All California and Other Users .....................................................................................................................2
TRIMMER PARTS & COMPONENTS ..........................................................................................................................3
ASSEMBLY COMPONENTS...........................................................................................................................................4
ASSEMBLY ........................................................................................................................................................................5
CONTROLS & FEATURES ...........................................................................................................................................10
STARTING & OPERATING ..........................................................................................................................................11
Electric-Starting .............................................................................................................................................................11
Manual-Starting .............................................................................................................................................................11
Stopping the Engine.......................................................................................................................................................12
Engaging the Trimmer Head..........................................................................................................................................12
Stopping the Cords from Spinning ................................................................................................................................12
Cutting Cords.................................................................................................................................................................13
TRIMMING AND MOWING METHODS....................................................................................................................14
Obstacles........................................................................................................................................................................14
Mow-Ball
™
Support.......................................................................................................................................................14
Cutting Cords.................................................................................................................................................................14
Adjusting the Cutting Height .........................................................................................................................................16
Wagner Anti-Wrap Device ............................................................................................................................................17
Heavy Growth................................................................................................................................................................18
Wet Conditions ..............................................................................................................................................................18
Very Dry Conditions......................................................................................................................................................18
Slopes.............................................................................................................................................................................18
Windrows.......................................................................................................................................................................19
Firebreaks ......................................................................................................................................................................19
End-of-Season Garden Clean-Up ..................................................................................................................................19
MAINTENANCE..............................................................................................................................................................20
Regular Maintenance .....................................................................................................................................................20
Battery Care (Electric-Starting models only).................................................................................................................21
To Remove the Mow-Ball
™
Support Assembly ............................................................................................................ 22
To Reassemble the Mow-Ball
™
Support Assembly.......................................................................................................23
To Partially Lower the Bearing Housing Assembly (to remove debris) ........................................................................24
To Check the Bearing Housing Assembly for Damage .................................................................................................24
To Remove and Replace the Bearing Housing Assembly .............................................................................................25
To Replace the Belt .......................................................................................................................................................26
To Adjust the Belt Tension Using the Trimmer Control Cable .....................................................................................27
TROUBLESHOOTING ...................................................................................................................................................28
PARTS LIST .....................................................................................................................................................................32
SCHEMATIC DRAWING ..............................................................................................................................................33
DAILY CHECKLIST FOR THE DR ® TRIMMER/MOWER ™ ........................................................... BACK COVER