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Drilling in wood or metal
3.
Place the other hook into the opposite side, while
repositioning the sealing cap to fit finely to the nozzle head.
► Fig.39: 1. Sealing cap 2. Cube hook 3. Lower part
of the groove 4. Nozzle head 5. Rims
CAUTION: Hold the tool firmly and exert care
when the drill bit begins to break through the
workpiece. There is a tremendous force exerted on
the tool/drill bit at the time of hole break through.
4.
Gently lay the rubber edge of the sealing cap
down over the rim of the nozzle head opening from
bottom to top.
► Fig.40: 1. Rubber edge 2. Sealing cap 3. Nozzle head
CAUTION: A stuck drill bit can be removed
simply by setting the reversing switch to reverse
rotation in order to back out. However, the tool
may back out abruptly if you do not hold it firmly.
OPERATION
CAUTION: Always secure workpieces in a
vise or similar hold-down device.
CAUTION: Always use the side grip (auxiliary
handle) and firmly hold the tool by both side grip
and switch handle during operations.
NOTICE: Never use “rotation with hammering”
when the drill chuck is installed on the tool. The
drill chuck may be damaged.
Also, the drill chuck will come off when reversing the
tool.
CAUTION: Always make sure that the work-
piece is secured before operation.
CAUTION: Do not pull the tool out forcibly
even the bit gets stuck. Loss of control may
cause injury.
NOTICE: Pressing excessively on the tool will
not speed up the drilling. In fact, this excessive
pressure will only serve to damage the tip of your drill
bit, decrease the tool performance and shorten the
service life of the tool.
NOTICE: Before using the dust collection sys-
tem with the tool, read the section about the dust
collection system.
Set the action mode changing knob to the
symbol.
Attach the chuck adapter to a keyless drill chuck to
which 1/2"-20 size screw can be installed, and then
install them to the tool. When installing it, refer to the
section “Installing or removing drill bit”.
► Fig.42: 1. Drill chuck assembly 2. Chuck adapter
NOTE: If the battery cartridge is in low temperature,
the tool’s capability may not be fully obtained. In this
case, warm up the battery cartridge by using the
tool with no load for a while to fully obtain the tool’s
capability.
Blow-out bulb
► Fig.41
Optional accessory
Hammer drilling operation
After drilling the hole, use the blow-out bulb to clean the
dust out of the hole.
► Fig.43
Using dust cup set
Optional accessory
Fit the dust cup set against the ceiling when operating
the tool.
► Fig.44
CAUTION: There is tremendous and sudden
twisting force exerted on the tool/drill bit at the time of
hole break-through, when the hole becomes clogged
with chips and particles, or when striking reinforcing
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 opera-
tions. Failure to do so may result in the loss of control
of the tool and potentially severe injury.
NOTICE: Do not use the dust cup set when drill-
ing in metal or similar. It may damage the dust
cup set due to the heat produced by small metal
dust or similar.
NOTICE: Do not install or remove the dust cup
set with the drill bit installed in the tool. It may
damage the dust cup set and cause dust leak.
Set the action mode changing knob to the
symbol.
Position the drill bit at the desired location for the hole,
then pull the switch trigger.
Apply feed force to the switch handle (main handle) for
working accuracy and efficiency, and hold the side grip
(auxiliary handle) to keep balance of the tool.
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 drill bit partially from the hole.
By repeating this several times, the hole will be cleaned
out and normal drilling may be resumed.
NOTE: Eccentricity in the drill bit rotation may occur
while operating the tool with no load. The tool auto-
matically centers itself during operation. This does not
affect the drilling precision.
16
ENGLISH