8
OPERATING INSTRUCTIONS
Installing or removing bit
Important:
Always be sure that the tool is switched off and
unplugged before installing or removing the bit.
Clean the bit shank and apply the bit grease provided to
it before installing the bit.
(
Fig. 1
: Bit for drilling)
(
Fig. 2
: Bit for chipping, scaling or demolishing)
CAUTION:
For bits for chipping, scaling or demolishing only
Never use A-type shank bits. They can cause damage to
the tool.
Make sure that the
U
mark is visible on the top end of
the tool. If the
U
mark is not visible, pull the chuck cover
down until it is visible.
(Fig. 3)
For drilling
Insert the bit into the tool. Turn the bit and push it in until
it engages.
(Fig. 4)
For chipping, scaling or demolishing
With the cut in the bit shank aligned with the notch in the
tool holder cap, insert the bit into the tool holder.
(Fig. 5)
The chuck cover will slide up automatically and cover the
U
mark. After installing, always make sure that the bit is
securely held in place by trying to pull it out.
To remove the bit, pull the chuck cover down all the way
and pull the bit out.
(Fig. 6)
Selecting action mode
Rotation with hammering (Fig. 7 & 8)
For drilling in concrete, masonry, etc., depress the lock
button and rotate the change lever so that the pointer
points to the
h
symbol. Use a tungsten- carbide tipped
bit.
Hammering only (Fig. 7 & 9)
For chipping, scaling or demolition operations, depress
the lock button and rotate the change lever so that the
pointer points to the
g
symbol. Use a bull point, cold
chisel, scaling chisel, etc.
CAUTION:
• Do not rotate the change lever when the tool is running
under load. The tool will be damaged.
• To avoid rapid wear on the mode change mechanism,
be sure that the change lever is always positively
located in one of the two action mode positions.
Bit angle (when chipping, scaling or demolishing)
Important:
Always be sure that the tool is switched off and
unplugged before changing the bit angle.
The bit can be secured at 12 different angles. To change
the bit angle, depress the lock button and rotate the
change lever so that the pointer points to the
O
symbol.
Turn the bit to the desired angle.
(Fig. 10)
Depress the lock button and rotate the change lever so
that the pointer points to the
g
symbol.
Then make sure that the bit is securely held in place by
turning it slightly.
(Fig. 11)
Side handle (Fig. 12)
CAUTION:
Use the side handle only when chipping, scaling or
demolishing. Do not use it when drilling in concrete,
masonry, etc. The tool cannot be held properly with this
side handle when drilling.
The side handle can be swung 360° on the vertical and
secured at any desired position. It also secures at eight
different positions back and forth on the horizontal. Just
loosen the clamp nut to swing the side handle to a
desired position. Then tighten the clamp nut securely.
Side grip (Fig. 13)
CAUTION:
• Always use the side grip to ensure operating safety
when drilling in concrete, masonry, etc.
• When the bit begins to break through concrete or if the
bit strikes reinforcing rods embedded in concrete, the
tool may react dangerously. Maintain good balance and
safe footing while holding the tool firmly with both
hands to prevent dangerous reaction.
The side grip swings around to either side, allowing easy
handling of the tool in any position. Loosen the side grip
by turning it counterclockwise, swing it to the desired
position and then tighten it by turning clockwise.
Switch action (Fig. 14)
CAUTION:
Before plugging in the tool, always check to see that the
switch trigger actuates properly and returns to the “OFF”
position when released.
To start the tool, simply pull the trigger. Release the trig-
ger to stop.
19
19
37
27
38.5
37
A
B
