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FUNCTIONAL
DESCRIPTION
CAUTION:
• Always be sure that the tool is switched off and
unplugged before adjusting or checking function on the
tool.
Switch action
CAUTION:
• Before plugging in the tool, always check to see that the
switch trigger actuates properly and returns to the “OFF”
position when released.
• Switch can be locked in “ON” position for ease of
operator comfort during extended use. Apply caution
when locking tool in “ON” position and maintain firm
grasp on tool.
To start the tool, simply pull the switch trigger. Release the
switch trigger to stop.
For continuous operation, pull the switch trigger and then
push in the lock button.
To stop the tool from the locked position, pull the switch trig-
ger fully, then release it.
Speed adjusting dial
For 9903, 9920 and 9404
The belt speed can be infinitely adjusted between 210 m
(690 ft.) and 440 m (1,440 ft.) per minute by turning the
speed adjusting dial to a given number setting from 1 to 5.
Higher speed is obtained when the dial is turned in the direc-
tion of number 5; lower speed is obtained when it is turned in
the direction of number 1.
Select the proper speed for the workpiece to be sanded.
CAUTION:
• If the tool is operated continuously at low speeds for a
long time, the motor will get overloaded, resulting in tool
malfunction.
• The speed adjusting dial can be turned only as far as 5
and back to 1. Do not force it past 5 or 1, or the speed
adjusting function may no longer work.
1. Lock button
2. Switch trigger
1
2
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1. Speed adjusting dial
1
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