10
ENGLISH
CAUTION:
•
There is a tremendous and sudden twisting
force exerted on the tool/bit at the time of hole
break-through, when the hole becomes clogged
with chips and particles, or when striking rein-
forcing rods embedded in the concrete. Always
use the side grip (auxiliary handle) and irmly
hold the tool by both side grip and switch handle
during operations. Failure to do so may result
in the loss of control of the tool and potentially
severe injury.
NOTE:
Eccentricity in the bit rotation may occur while
operating the tool with no load. The tool automatically
centers itself during operation. This does not affect
the drilling precision.
Blow-out bulb (optional accessory)
1
1.
Blow-out bulb
After drilling the hole, use the blow-out bulb to clean the
dust out of the hole.
Chipping/Scaling/Demolition
Set the action mode changing knob to the
symbol.
Hold the tool irmly with both hands. Turn the tool on
and apply slight pressure on the tool so that the tool will
not bounce around, uncontrolled. Pressing very hard on
the tool will not increase the eficiency.
Drilling in wood or metal
1
2
1.
Chuck adapter
2.
Keyless drill chuck
1
2
1.
Sleeve
2.
Ring
Use the optional drill chuck assembly. When installing it,
refer to "Installing or removing the bit" described on the
previous page.
Set the action mode changing knob so that the pointer
points to the
symbol.
For model DHR243
CAUTION:
•
Never use "rotation with hammering" when the
drill chuck assembly is installed on the tool. The
drill chuck assembly may be damaged. Also, the
drill chuck will come off when reversing the tool.
1
2
3
1.
Quick change chuck for SDS-plus
2.
Change
cover line
3.
Change cover
