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19 ENGLISH
Installing or removing the dust
collection system
Optional accessory
To install the dust collection system, insert the tool into the dust collec-
tion system all the way until it locks in place with a little double click.
►
Fig.25
To remove the dust collection system, pull the tool while
pressing the lock-off button.
►
Fig.26:
1.
Lock-off button
Dust cup
Optional accessory
Use the dust cup to prevent dust from falling over the tool and
on yourself when performing overhead drilling operations.
Attach the dust cup to the bit as shown in the figure. The size
of bits which the dust cup can be attached to is as follows.
Model
Bit diameter
Dust cup 5
6 mm - 14.5 mm
Dust cup 9
12 mm - 16 mm
►
Fig.27:
1.
Dust cup
Dust cup set
Optional accessory
Before installing the dust cup set, remove the bit from
the tool if installed.
Install the dust cup set on the tool so that the
sym-
bol on the dust cup is aligned with the groove in the tool.
►
Fig.28:
1.
symbol
2.
Groove
NOTE:
If you connect a vacuum cleaner to the dust
cup set, remove the dust cap before connecting it.
►
Fig.29:
1.
Dust cap
To remove the dust cup set, remove the bit while pulling
the chuck cover in the direction of the arrow.
►
Fig.30:
1.
Bit
2.
Chuck cover
Hold the root of dust cup and pull it out.
►
Fig.31
NOTE:
If the cap comes off from the dust cup, attach
it with its printed side facing up so that groove on the
cap fits in the inside periphery of the attachment.
►
Fig.32
OPERATION
CAUTION:
Always use the side grip (auxiliary
handle) and firmly hold the tool by both side grip
and switch handle during operations.
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.
CAUTION:
The dust collection system is
intended for drilling in concrete only. Do not use
the dust collection system for drilling in metal or
wood.
CAUTION:
When using the tool with the dust
collection system, be sure to attach the filter
to the dust collection system to prevent dust
inhalation.
CAUTION:
Before using the dust collection
system, check that the filter is not damaged.
Failure to do so may cause dust inhalation.
CAUTION:
The dust collection system col-
lects the generated dust at a considerable rate,
but not all dust can be collected.
NOTICE:
Do not use the dust collection system
for core drilling or chiseling.
NOTICE:
Do not use the dust collection system
for drilling in wet concrete or use this system
in wet environment. Failure to do so may cause
malfunction.
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.
►
Fig.33
Hammer drilling operation
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.
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. Do not force the tool. Light
pressure 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 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.
Содержание 131301
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