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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
1
003021
CAUTION:
• Before plugging in the tool, always check to see
that the switch trigger actuates properly and
returns to the "OFF" position when released.
To start the tool, simply pull the switch trigger. Release
the switch trigger to stop.
Reversing switch action
1
A
B
003028
This tool has a reversing switch to change the direction
of rotation. Depress the reversing switch lever from the A
side for clockwise rotation or from the B side for
counterclockwise rotation.
CAUTION:
• Always check the rotational direction before
operation.
• Use the reversing switch only after the tool comes
to a complete stop. It will damage the tool to
change the rotational direction before the tool
stops.
Speed change
For Model DA4031 only
1
2
3
003031
Two speed ranges can be preselected with the speed
change knob.
To change the speed, depress the lock button and turn
the speed change knob so that the pointer points to the
position 1 for low speed or the position 2 for high speed.
CAUTION:
• Use the speed change knob only after the tool
comes to a complete stop. Changing the tool
speed before the tool stops may damage the tool.
• Always set the speed change knob carefully into
the correct position. If you operate the tool with the
speed change knob positioned halfway between
the position 1 and the position 2, the tool may be
damaged.
Torque limiter
For Model DA4031 only
The torque limiter will actuate when a certain torque
level is reached (for lower speed setting: position 1). The
motor will disengage from the output shaft. When this
happens, the bit will stop turning.
Switch handle mounting positions
1
2
3
4
003034
The switch handle can be rotated to either 90° left or
right to fit your work needs. First, unplug the tool. Press
the lock button and rotate the switch handle until the
mark on the lock button is aligned with that on the motor
housing. The switch handle will be locked in that
position.
1. Mark
2. Motor housing
3. Lock button
4. Handle
1. Pointer
2. Speed change
knob
3. Lock button
1. Reversing
switch lever
1. Switch trigger