Hitachi DV 20V - How to Use

English
19
CAUTION
○ Always use the impact drill with clockwise
rotation, when using it as an impact drill.
(Fig. 8)
○ Operating the tool with the rotational
change lever in mid-position may result in
damage.When switching, make sure that
you shift the rotational change lever to the
correct position.
HOW TO USE
CAUTION
To prevent accidents, make sure to turn the switch off and disconnect the plug
from the receptacle when the drill bits and other various parts are installed or
removed. The power switch should also be turned off during a work break and after
work.
1. Switch operation
○ When the trigger is depressed, the tool rotates. When the trigger is released, the tool stops.
○ The rotational speed of the drill can be controlled by varying the amount that the trigger
switch is pulled. Speed is low when the trigger switch is pulled slightly and increases as the
trigger switch is pulled more.
○ The desired rotation speed can be pre-
selected with the speed control dial.
Turn the speed control dial clockwise for
higher speed and counterclockwise for
lower speed. (Fig. 9)
○ Pulling the trigger and pushing the stopper,
it keeps the switched-on condition which
is convenient for continuous running.
When switching off , the stopper can be
disconnected by pulling the trigger again.
2. Drilling
○ When drilling, start the drill slowly, and gradually increasing speed as you drill.
○ Always apply pressure in a straight line with the bit. Use enough pressure to keep drilling,
but do not push hard enough to stall the motor or defl ect the bit.
○ To minimize stalling or breaking through the material, reduce pressure on drill and ease the
bit through the last part of the hole.
○ If the drill stalls, release the trigger immediately, remove the bit from the work and start
again. Do not click the trigger on and off in an attempt to start a stalled drill. This can
damage the drill.
Fig. 8
Fig. 9
Switch trigger
Low speed
High speed
Speed control dial
Stopper
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