6
FUNCTIONAL DESCRIPTION
CAUTION:
•
Always be sure that the tool is switched off and
unplugged before adjusting or checking function
on the tool.
Switch action
Fig.1
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 switch trigger. Tool
speed is increased by increasing pressure on the switch
trigger. Release the switch trigger to stop. For
continuous operation, pull the switch trigger and then
push in the lock button. To stop the tool from the locked
position, pull the switch trigger fully, then release it.
Lighting up the lamps
For Model HR2470F/2470FT
Fig.2
CAUTION:
•
Do not look in the light or see the source of light
directly.
To turn on the lamp, pull the trigger. Release the trigger
to turn it off.
NOTE:
•
Use a dry cloth to wipe the dirt off the lens of lamp.
Be careful not to scratch the lens of lamp, or it
may lower the illumination.
Reversing switch action
Fig.3
CAUTION:
•
Always check the direction of rotation before
operation.
•
Use the reversing switch only after the tool comes
to a complete stop. Changing the direction of
rotation before the tool stops may damage the tool.
•
If the switch trigger can not be depressed, check
to see that the reversing switch is fully set to
position
(A side) or
(B side).
This tool has a reversing switch to change the direction
of rotation. Move the reversing switch lever to
the
position (A side) for clockwise rotation or
the
position (B side) for counterclockwise rotation.
Changing the quick change chuck for SDS-
plus
For model HR2470T/HR2470FT
The quick change chuck for SDS-plus can be easily
exchanged for the quick change drill chuck.
Removing the quick change chuck for SDS-plus
Fig.4
CAUTION:
•
Before removing the quick change chuck for SDS-
plus, always remove the bit.
Grasp the change cover of the quick change chuck for
SDS-plus and turn in the direction of the arrow until the
change cover line moves from the symbol to the
symbol. Pull forcefully in the direction of the arrow.
Attaching the quick change drill chuck
Fig.5
Check the line of the quick change drill chuck shows the
symbol. Grasp the change cover of the quick change
drill chuck and set the line to the symbol.
Place the quick change drill chuck on the spindle of the
tool.
Grasp the change cover of the quick change drill chuck
and turn the change cover line to the symbol until a
click can clearly be heard.
Selecting the action mode
Rotation with hammering
Fig.6
For drilling in concrete, masonry, etc., depress the lock
button and rotate the action mode changing knob to the
symbol. Use a tungsten-carbide tipped bit.
Rotation only
Fig.7
For drilling in wood, metal or plastic materials, depress
the lock button and rotate the action mode changing
knob to the
symbol. Use a twist drill bit or wood bit.
Hammering only
Fig.8
For chipping, scaling or demolition operations, depress
the lock button and rotate the action mode changing
knob to the
symbol. Use a bull point, cold chisel,
scaling chisel, etc.
CAUTION:
•
Do not rotate the action mode changing knob
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 action mode
changing knob is always positively located in one
of the three action mode positions.
Torque limiter
The torque limiter will actuate when a certain torque
level is reached. The motor will disengage from the
output shaft. When this happens, the bit will stop turning.
CAUTION:
•
As soon as the torque limiter actuates, switch off
the tool immediately. This will help prevent
premature wear of the tool.
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