Prior To Operation - HIKOKI DM 20V Manual Del Usuario

English

PRIOR TO OPERATION

1. Power source
Ensure that the power source to be utilized conforms
to the power requirements specifi ed on the product
nameplate.
2. Power switch
Ensure that the power switch is in the OFF position. If the
plug is connected to a receptacle while the power switch
is in the ON position, the power tool will start operating
immediately, inviting serious accident.
3. Extension cord
When the work area is removed from the power source,
use an extension cord of suffi cient thickness and rated
capacity. The extension cord should be kept as short as
practicable.
4. Selecting the appropriate drill bit
○ When boring concrete or stone
Use the drill bits specifi ed in the Optional Accessories.
○ When boring metal or plastic
Use an ordinary metalworking drill bit.
○ When boring wood
Use an ordinary woodworking drill bit.
However, when drilling 6.5 mm or smaller holes, use a
metalworking drill bit.
5. Mounting and dismounting of the bit
The country of use will determine whether Type A or
Type B keyless chuck is required.
○ Type A (Fig. 1)
(1) Mounting the bit
Turn the lock collar in the direction "AUF" and open the
chuck. After inserting the drill bit into the chuck as far it
will go, turn the lock collar in the "ZU" direction. Grip the
ring and close the chuck by turning the sleeve clockwise
as viewed from the front.
(2) Dismounting the bit
Turn the lock collar in the direction "AUF" to release the
chucking force. Grip the ring and open the chuck by
turning the sleeve counterclockwise.
NOTE
When the sleeve does not become loose any further, fi x
the side handle to ring, hold side handle fi rmly, then turn
the sleeve to loosen by hand. (Fig. 3)
○ Type B (Fig. 2)
(1) Mounting the bit
Turn the sleeve counterclockwise and open the chuck.
After inserting the drill bit into the chuck as far it will go,
grip the ring and close the chuck by turning the sleeve
clockwise as viewed from the front.
(2) Dismounting the bit
Grip the ring and open the chuck by turning the sleeve
counterclockwise.
NOTE
When the sleeve does not become loose any further, fi x
the side handle to ring, hold side handle fi rmly, then turn
the sleeve to loosen by hand. (Fig. 3)
6. Check the rotational direction (Fig. 4)
The bit rotates clockwise (viewed from the rear side) by
pushing the R-side of the push button.
The L-side of the push button is pushed to turn the bit
counterclockwise.
(The and marks are provided on the body.)
L R
CAUTION
Always use the masonry drill with clockwise rotation,
when using it as a masonry drill.
8
7. Fixing the side handle (Fig. 5)
Attach the side handle to the mounting part.
Rotate the side handle grip in a clockwise direction
to secure it.
Set the side handle to a position that is suited to the
operation and then securely tighten the side handle grip.
To attach a depth gauge on the side handle, insert the
gauge into the U-shaped groove on the side handle,
adjust the position of the depth gauge in accordance with
the desired depth of the hole, and fi rmly tighten the side
handle grip. (Fig. 6)
8. IMPACT to ROTATION changeover (Fig. 7)
Shift the change lever between the right and left positions
to switch easily between IMPACT (rotation and impact)
and ROTATION (rotation only), respectively.
To bore holes in hard materials such as concrete, stone
and tiles, shift the change lever to the right-hand position
(as indicated by the
The drill bit operates by the combined actions of impact
and rotation.
To bore holes in metal, wood and plastic, shift the change
lever to the left-hand position (as indicated by the
mark). The drill bit operates by rotational action only, as
in the case of a conventional electric drill.
CAUTION
○ Do not use the masonry Drill in the IMPACT function
if the material can be bored by rotation only. Such
action will not only reduce drill effi ciency, but may
also damage the drill tip.
○ Operating the masonry Drill with the change lever in
mid-position may result in damage. When switching,
make sure that you shift the change lever to the
correct position.
9. High-speed/Low-speed changeover:
Prior to changing speed, ensure that the switch is in the
OFF position, and the drill has come to a complete stop.
To change speed, rotate the gear shift dial as indicated
by the arrow in Fig. 8. The numeral "1" engraved on the
drill body denotes low speed, the numeral "2" denotes
high speed.
If it is hard to turn the gear shift dial, turn the chuck slightly
in either direction and then turn the gear shift dial again.
HOW TO USE
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.
CAUTION
If the L-side of push button is pressed for reverse bit
rotation, the stopper cannot be used.
mark).