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FEATURES

Your sander is suitable for sanding with coarse, medium, 
and fi ne grit sandpaper. It will produce a fi ne scratch-free  
fi nish when used to sand with the grain on wood surfaces. 

Your sander has a comfortable palm grip handle that 
provides maximum one-hand comfort, and reduces 
operator fatigue during continuous sanding operations.

Your sander also has a built-in dust collection that collects 
dust through punched holes in the sandpaper and cushion.

Before attempting to use your sander, familiarize 
yourself with all operating features and safety 
requirements.

SWITCH

This tool is equipped with a simple switch control. To turn 
the sander on, slide the switch to the left. Slide the switch 
to the right to turn the sander off.

VARIABLE SPEED CONTROL

Your sander has advanced electronic features, designed 
to assist you in getting the maximum use from your 
sander. By making proper speed selections, your sander 
can be adjusted to specifi c sanding needs.

The variable speed control allows the sander to develop a 
no-load speed that can be adjusted from 7,000 to 12,000 
min

-1

. The variable speed control selector is conveniently 

located at the back of the sander.

The electronic feature of your sander introduces the 
fl exibility of adjusting the motor speed to required job 
conditions. An electronic speed control module senses 
the load applied to the motor and increases or decreases 
motor voltage to compensate for and maintain desired 
RPM. Speed can be set according to the sanding purpose 
or the surface of the workpiece you will be using. Increase 
speed for rough surfaces or for quick removal of stock and 
decrease speed for smaller, delicate sanding applications.

 WARNING

Do not allow familiarity with your sander to make you 
careless. Remember that a careless fraction of a 
second is suffi cient to infl ict severe injury.

OPERATION

 WARNING

The tool should never be connected to power supply 
when you are assembling parts, making adjustments, 
assembling or replacing sandpaper, cleaning, or when 
the tool is not in use. Disconnecting the tool will prevent 
accidental starting that could cause serious personal 
injury.

INSTALLING SANDPAPER

Inspect the sandpaper before installing. 

Do not use if it is 

broken or defective.

INSTALLING ADHESIVE (HOOK AND LOOP) 
SANDPAPER

See Figure 4.

1.  Unplug the tool.

 WARNING

Failure to unplug the tool could result in accidental 
starting causing possible serious injury.

2.  Align the holes in the hook and loop type sanding disc 

with holes in pad, then carefully press the fuzzy side 
of sanding disc against the pad as tightly as possible.

NOTE:

 Hook and loop type sanding discs can be reused 

for the life of the sanding abrasive. It is recommended that 
you keep the sanding disc backing pad clean to provide 
for best adhesion. Clean occasionally by brushing lightly 
with a small brush.

 WARNING

Do not use sander without sandpaper, doing so will 
damage the cushion.

 CAUTION

Be careful not to let your hand completely cover the air 
vents.

SANDING

See Figure 1.

 WARNING

Unsecured work could be thrown towards the operator 
causing injury.

Hold your sander in front and away from you, keeping it 
clear of the workpiece. Start your sander by pressing the 
switch button to "on" position and letting the motor build to 
its maximum speed. Gradually lower your sander on the 
work with a slight forward movement. Move it slowly using 
forward and backward strokes.

Do not force.

 The weight of the unit supplies adequate 

pressure, so let the sanding disc and sander do the work. 
Applying additional pressure only slows the motor, rapidly 
wears sanding disc and greatly reduces sander speed. 
Excessive pressure will overload the motor causing 
possible damage from motor overheating and can result 
in inferior work. Any fi nish or resin on wood may soften 
from the frictional heat.

Summary of Contents for ERO240RG

Page 1: ...RANDOM ORBITAL SANDER OWNER S OPERATING MANUAL ERO240RG...

Page 2: ...1 Power switch 2 Quick change hook and loop pad 3 Dust bag with frame 4 Variation speed control 5 Sandpaper 6 Live tool indicator DESCRIPTION 3 6 5 Fig 1 Fig 3 Fig 2 4 g i F 4 3 1 2...

Page 3: ...Important It is essential that you read the instructions in this manual before operating this machine Subject to technical modifications...

Page 4: ...e protection Protective equipment such as dust mask non skid safety shoes hard hat or hearing protection used for appropriate conditions will reduce personal injuries c Prevent unintentional starting...

Page 5: ...ANDERS Always wear safety goggles and a dust mask when sanding especially sanding over head The product is not suitable for wet sanding Do not use sanding paper larger than needed Extra paper extendin...

Page 6: ...sufficient to inflict severe injury OPERATION WARNING The tool should never be connected to power supply when you are assembling parts making adjustments assembling or replacing sandpaper cleaning or...

Page 7: ...ore than half full This will permit the air to flow through the dust collection box better Always empty and clean the dust collection box thoroughly upon completion of a sanding operation and before p...

Page 8: ...CLEANING THE SANDING SHEETS The sanding sheets that came with your sander are made to be re used Therefore it is important that they be cleaned periodically to remove sanding residue and foreign mate...

Page 9: ...TECHTRONIC INDUSTRIES AUSTRALIA PTY LTD Level 1 666 Doncaster Road Doncaster Victoria 3108 Australia Tel 61 3 9840 3226 Fax No 613 9840 6133 www ryobi com au...

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