How To Use - Hitachi Koki DV 20VD Manual De Instrucciones

English
NOTE:
Actuate the rotational change lever only when
the machine is at a standstill.
The rotational change lever is used to reverse
the rotational direction of the machine.
However, this is not possible with the On/Off
switch actuated.
CAUTION:
Always use the hammer drill with clockwise
rotation, when using it as an hammer drill. (Fig. 9)
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 switch 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.
10
Rotational
change lever
Fig. 8
Fig. 9
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. 10)
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.
Switch trigger
Low speed
Speed control dial
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.
WARNING:
The larger the drill bit diameter, the larger the
reactive force on your arm.
Be careful not to lose control of the drill because
of this reactive force.
To maintain firm control, establish a good
foothold, use side handle, hold the drill tightly
with both hand, and ensure that the drill is
vertical to the material being drilled.
Stopper
High speed
Fig. 10