Hitachi LG-H815, Handling Instructions Manual

Page: 5 / 33

4
English
3. Extension cord
When the work area is removed from the power
source. Use an extension cord of sufficient thickness
and rated capacity. The extension cord should be
kept as short as practicable.
4. Mounting and dismounting of the bit.
For Drill chuck with chuck wrench (Fig. 1)
Fit the drill bit into the chuck and use the chuck
wrench to secure it, tightening the chuck by each
of the three holes in turn.
For keyless chuck (Fig. 2, 3)
(1) Mounting the bit
Turn the lock collar in the direction “AUF . RELEASE”
and open the chuck. After Inserting the drill bit Into
the chuck as far it will go, turn the lock collar in
the “GRIP . ZU” direction. Grip the retaining 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 . RELEASE”
to release the shucking force. Grip the retaining ring
and open the chuck by turning the sleeve
counterclockwise.
NOTE
When the sleeve does not become loose any further,
fix a regular spanner to spindle, hold regular spanner
firmly, then turn the sleeve to loosen by hand. (Fig.
4)
5. Selecting the appropriate drill bit
䡬
When boring concrete or stone
Use the drill bits specified in the Optional
Accessories.
䡬
When boring metal or plastic
Use an ordinary metalworking drill bit.
STANDARD ACCESSORIES
(1) Chuck Wrench (Spec. only for chuck fitted with
chuck wrench) ............................................................ 1
(2) Side Handle ................................................................ 1
(3) Depth Gauge .............................................................. 1
(4) Plastic Case ................................................................ 1
Standard accessories are subject to change without notice.
OPTIONAL ACCESSORIES (sold separately)
䡬
Impact Drill Bit (for concrete)
3.2 mm – 20 mm dia.
Optional accessories are subject to change without notice.
APPLICATIONS
䡬
By combined actions of ROTATION and IMPACT:
Boring holes in hard materials (concrete, marble,
granite, tiles, etc.)
䡬
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 requirements specified 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.
PRECAUTIONS ON USING IMPACT DRILL
1. Wear ear protectors with impact drills.
Exposure to noise can cause hearing loss.
2. Use auxiliary handles supplied with the tool.
Loss of control can cause personal injury.
3. Before drilling into walls, ceilings or floors, ensure
that there are no concealed power cables inside.
4. When boring concrete or similar hard materials in
IMPACT mode, set the bit rotation switch lever to
the R-side. (Fig. 8)
5. Avoid tightening work of screws, bolts, and nuts;
otherwise, rotating sections may be stopped all of
a sudden, resulting in the malfunction of the main
body and risk of injury.
Voltage (by areas)* (110V, 115V, 120V, 127V, 220V, 230V, 240V)
Power input 750W*
Speed change 1 2
No load speed 0 – 1300 min
–1
0 – 3000 min
–1
Steel 13 mm 8 mm
Capacity Concrete 20 mm 13 mm
Wood 40 mm 25 mm
Full load impact rate 15000 min
–1
35000 min
–1
Weight (without cord) 2.2 kg
SPECIFICATIONS
*Be sure to check the nameplate on product as it is subject to change by areas.