Supplemental Owner’s Manual 3
About This Manual
Save These Instructions
It is important for you to read and understand this manual. The information it contains relates to protecting YOUR SAFETY
and PREVENTING PROBLEMS. The symbols below are used to help you recognize this information.
WARNING! Indicates a potentially hazardous situation which, if
not avoided, could result in death or serious injury.
CAUTION! Indicates a potentially hazardous situation which, if
not avoided, could result in minor or moderate injury.
NOTICE: Indicates a potential situation which, if not avoided,
can result in property damage or damage to the tool.
Note: Indicates information, notes, or tips for improving your
success using the tool.
Tool Symbols
V Volts
W Watts
Hz Hertz
~ Alternating Current (AC)
n
o
No-load Speed
Class II Double Insulated
Contents
About This Manual ........................................... 3
Tool Symbols ................................................... 3
General Power Tool Safety Warnings .............. 4
Work Area Safety .......................................... 4
Electrical Safety ............................................ 4
Personal Safety ............................................. 4
Power Tool Use and Care ................................ 4
Service ........................................................ 5
Specic Safety Rules for Sanders ....................... 5
Respiratory Exposure Safety Warnings ................ 5
Sander Overview ............................................. 5
Intended Use ................................................... 5
Technical Specications ..................................... 5
Functional Description ...................................... 6
Sanding Action/Mode ........................................ 7
Dual-Action ................................................... 7
Gear Driven (Rotex) Mode .............................. 7
Random Orbit ............................................... 7
Optimizing Random Orbit ................................ 7
Anatomy of Sandpaper ..................................... 8
Choosing the Appropriate Grit ......................... 9
Best Sandpaper for the Task ........................... 9
Setup ............................................................. 10
Changing Sanding Pads ................................... 10
Choosing the Correct Sanding Pad ................. 10
Changing Delta (RO90) Sanding Pads ............... 11
Changing Sandpaper ...................................... 12
Connecting a Dust Extractor ............................ 12
Connecting the Plug-It Power Cord ................... 12
Setting the Variable Speed .............................. 12
Installing the Sanding Bumper ......................... 13
Setting the Sanding Mode ............................... 13
Turning on the Sander .................................... 13
Operation ...................................................... 14
Using Dust Extraction ..................................... 14
Choosing Hand Positions ................................. 15
Working With Sanding Grits ............................. 15
Sanding Techniques ........................................ 16
Establishing Optimal Sanding Pressure ........... 16
Sanding Pattern and Movement ..................... 16
Maintenance and Adjustment ........................ 18
Routine Maintenance ...................................... 18
Motor Brush Replacement ............................... 18
RO 90 Motor Brushes ................................... 18
RO 125 Motor Brushes ................................. 19
RO 150 Motor Brushes ................................. 20
Troubleshooting ............................................. 21