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(3) Pull the tool to make sure it is locked completely.
(4) To remove the tool, fully pull the grip in the
direction of the arrow and pull out the tool.
7.
Power lamp
The power lamp lights up when the power cord is
plugged into an electrical outlet. (Fig. 3)
8.
Regulating the number of rotations and
hammering (Fig. 4)
This Rotary Hammer is equipped with a built-in
electronic control circuit that can adjust and
regulate the number of rotations and times of
hammering. This Rotary Hammer can be used by
adjusting the rotation speed selector switch,
depending upon the contents of operation, such
as boring holes into fragile materials, chipping,
centering, etc.
Pressing the rotation speed selector switch switches
rotation speeds as shown in Table 1.
Display lamp
sequence
Full-load speed
250
Impacts per
1,430
Minute
8
Power lamp
Fig. 3
Rotation speed
selector switch
Display lamp
Fig. 4
Table 1
330
410
1,900
2,370
2,850
NOTE:
The rotation speed cannot be changed by pressing
the rotation speed selector switch while the motor
is rotating. To change speeds, switch off the tool
first.
9.
About the protection function
This tool has a built-in protection circuit for
preventing damage to the unit in the event of an
abnormality.
Depending on the nature of the abnormality, the
display lamp will flash as shown in Table 2 and
the unit will cease to operate. In such cases, verify
the problem indicated by the flashing and take
whatever steps are necessary to correct the
problem.
Display lamp
flashing
Flash
Flash
Flash
500
Table 2
Cause
Solution
Internal
Turn off the unit
temperature has
and allow it to
risen beyond the
cool down for
unit's specified
about 15
temperature
minutes. When
(Temperature
the temperature
increase
goes down, the
protection
display lamp
function)
will stop
flashing and
remain lit to
indicate that the
unit is ready for
use.
Excessive
Press the
pressure applied
rotation speed
to the tool has
selector switch
resulted in an
to recover. Try
overload.
to avoid tasks
(Overload
that will apply
protection
excess pressure
function)
to the unit.
Tool is
Connect the unit
connected to a
to a power
power source
supply matching
whose voltage is
the input
either too high
voltage
or too low.
specified on the
(Circuit
nameplate.
protection
Press the
function)
rotation speed
selector switch
to recover.
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