Assembly And Operation; Applications; Prior To Operation - Hitachi Koki DV 20VD Manual De Instrucciones

English

APPLICATIONS

By combined actions of ROTATION and IMPACT:
Boring holes in hard surfaces (concrete, marble,
granite, tiles, etc.)
By ROTATIONAL action:
Boring holes in metal, wood and plastic.

PRIOR TO OPERATION

1. Power source
Ensure that the power source to be utilized conforms
to the power source requirements specified on the
product nameplate.
2. Power switch
Ensure that the switch is in the OFF position. If the
plug is connected to a receptacle while the switch is
in the ON position, the power tool will start operating
immediately and can cause serious injury.
3. Extension cord
When the work area is far away 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.
WARNING:
Damaged cord must be replaced
or repaired.
4. Check the receptacle
If the receptacle only loosely accepts the plug, the
receptacle must be repaired. Contact a licensed
electrician to make appropriate repairs.
If such a faulty receptacle is used, it may cause
overheating, resulting in a serious hazard.
5. Check your work environment
Confi rm that the work site is placed under appropriate
conditions conforming to prescribed precautions.
6. 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 1/4" (6.5 mm) or smaller
holes, use a metalworking drill bit.
7. Mounting and dismounting of the bit (Fig. 2)
(1) Open the chuck jaws, and insert the bit into the
chuck.
8

ASSEMBLY AND OPERATION

(2) Place the chuck wrench in each of the three holes
in the chuck, and turn it in the clockwise direction
(viewed from the front side). Tighten securely.
(3) To remove the bit, place the chuck wrench into
one of the holes in the chuck and turn it in the
counterclockwise direction.
Tighten
Chuck
wrench
8. Fixing the side handle (Fig. 3)
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. 4)
Side handle
Loosen
Drill chuck
Loosen
Fig. 2
Tighten
Fig. 3