7 ENGLISH
ASSEMBLY
CAUTION:
•
Always be sure that the tool is switched off and
unplugged before carrying out any work on the
tool.
Side grip (auxiliary handle)
►
Fig.4:
1.
Thumb screw
2.
Protrusions
3.
Grooves
CAUTION:
•
Always use the side grip to ensure operating
safety.
Install the side grip so that the protrusions on the grip fit
in between the grooves on the tool barrel. Then tighten
the thumb screw to fix the grip at the desired position. It
may be swung 360° so as to be secured at any position.
Bit grease
Coat the bit shank head beforehand with a small
amount of bit grease (about 0.5 - 1 g).
This chuck lubrication assures smooth action and lon
-
ger service life.
Installing or removing the bit
►
Fig.5:
1.
Bit shank
2.
Bit grease
Clean the bit shank and apply bit grease before install-
ing the bit.
►
Fig.6:
1.
Bit
Insert the bit into the tool. Turn the bit and push it in until
it engages.
After installing, always make sure that the bit is securely
held in place by trying to pull it out.
►
Fig.7:
1.
Bit
2.
Chuck cover
To remove the bit, pull the chuck cover down all the way
and pull the bit out.
Depth gauge
►
Fig.8:
1.
Thumb screw
2.
Depth gauge
The depth gauge is convenient for drilling holes of
uniform depth. Loosen the thumb screw and adjust
the depth gauge to the desired depth. After adjusting,
tighten the thumb screw firmly.
NOTE:
•
The depth gauge cannot be used at the position
where the depth gauge strikes against the gear
housing/motor housing.
OPERATION
Always use the side grip (auxiliary handle) and firmly
hold the tool by both side grip and switch handle during
operations.
Hammer drilling operation
►
Fig.9
Set the action mode changing knob to the
symbol.
Position the bit at the desired location for the hole, then
pull the switch trigger. Do not force the tool. Light pres-
sure gives best results. Keep the tool in position and
prevent it from slipping away from the hole.
Do not apply more pressure when the hole becomes
clogged with chips or particles. Instead, run the tool at
an idle, then remove the bit partially from the hole. By
repeating this several times, the hole will be cleaned out
and normal drilling may be resumed.
Set the action mode changing knob to the
symbol.
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 firmly
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.
