4
English
SPECIFICATIONS
The speci
fi
cations of this machine are listed in the Table on
page 28.
NOTE
Due to HiKOKI’s continuing program of research and
development, the speci
fi
cations herein are subject to
change without prior notice.
MOUNTING AND OPERATION
Action
Figure
Page
Inserting SDS-max tools
1
29
Removing SDS-max tools
2
29
Changing tool direction
3
29
Selecting the operating mode
4
29
Switching on and o
ff
5
29
About the power lamp
6
30
Speed change
7
30
Install the stopper
8
30
Using tapershank adapter
9
31
Removing tapershank adapter
10
31
Mounting core bit
11
31
Mounting guide plate and center pin
12
31
Selecting accessories*
–
32, 33
* For detailed information regarding each tool, contact a
HiKOKI authorized service center.
Warming up (Fig. 13)
The grease lubrication system in this unit may require
warming up in cold regions.
Position the end of the bit so makes contact with the
concrete, turn on the switch and perform the warming
up operation. Make sure that a hitting sound is produced
and then use the unit.
CAUTION
When the warming up operation is performed, hold the
side handle and the main body securely with both hands
to maintain a secure grip and be careful not to twist your
body by the jammed drill bit.
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
fl
ash
as shown in
Table 1
and the unit will cease to operate. In
such cases, verify the problem indicated by the
fl
ashing and
take whatever steps are necessary to correct the problem.
NOTE
Repair may be required if the display lamp continues
to
fl
ash after taking all necessary steps to correct the
problem. If the problem persists, please arrange for
repairs.
Table 1
Display
lamp
fl
ashing
Cause
Solution
Flash
Internal temperature
has risen beyond
the unit’s speci
fi
ed
temperature.
(Temperature
increase protection
function)
Turn o
ff
the unit and
allow it to cool down
for about 15 minutes.
When the temperature
goes down, the display
lamp will stop
fl
ashing
and remain lit to
indicate that the unit is
ready for use.
Flash
Excessive pressure
applied to the tool
has resulted in an
overload.
(Overload
protection function)
Press the rotation
speed selector switch
to recover. Try to avoid
tasks that will apply
excess pressure to
the unit.
Flash
Tool is connected
to a power source
whose voltage is
either too high or
too low.
(Circuit protection
function)
Connect the unit to a
power supply matching
the input voltage
speci
fi
ed on the
nameplate. Press the
rotation speed selector
switch to recover.
Flash
Sensor signal read
error.
(Control monitoring
function)
Press the rotation
speed selector switch
to recover. Repair may
be required if this error
continuously occurs.
GREASE REPLACEMENT
This Rotary Hammer is of full air-tight construction to protect
against dust and to prevent lubricant leakage.
Therefore, this Rotary Hammer can be used without
lubrication for long periods. Replace the grease as described
below.
Grease Replacement Period
After purchase, replace grease after every 6 months of
usage. Ask for grease replacement at the nearest authorized
Service Center.
MAINTENANCE AND INSPECTION
1. Inspecting the drill bits
Since use of a dull tool will cause motor malfunctioning
and degraded e
ffi
ciency, replace the drill bit with new
ones or resharpen them without delay when abrasion is
noted.
2. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure that
they are properly tightened. Should any of the screws be
loose, retighten them immediately. Failure to do so could
result in serious hazard.
3. Maintenance of the motor
The motor unit winding is the very “heart” of the power
tool.
Exercise due care to ensure the winding does not
become damaged and/or wet with oil or water.
4. Replacing supply cord
If the replacement of the supply cord is necessary, this
has to be done by the manufacturer of this agent in order
to avoid a safety hazard.
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2018/03/08 16:46:16
