Hitachi H 60MEY Instructions De Sécurité Et Mode D'emploi page 9

Pressing the impact rate selector switch switches impact
rates as shown in Table 1.
Display lamp
sequence
Impacts per
1,500
Minute
NOTE:
The impact rate cannot be changed by pressing the
impact rate selector switch while the motor is rotating.
To change impact rate, switch off the tool fi rst.
12 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 2 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.
Impact rate
selector switch
Display lamp
Fig. 11
Table 1
1,700 1,900 2,100
Display
lamp Cause
fl ashing
The tool has
shut down
due to internal
temperatures
Flash
which exceed the
unit's specifi ed
temperature.
(Temperature
increase protection
function)
The tool has shut
down due to an
overload resulting
Flash
from the application
of excessive
pressure to the
unit.
(Overload
protection function)
1 Tool fails to
startup or has
shut down due
to the unit being
connected to a
power source
whose voltage
is either too
high or too low.
Flash
2 Tool has shut
down due to a
voltage signal
read error that
occurred from
the unit's power
cord being
plugged in and
out at short
intervals.
(Circuit protection
function)
Tool fails to startup
or has shut down
Flash
due to a sensor
signal read error.
(Control monitoring
function)
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.
English
Table 2
Solution
Turn off the tool and
allow it to cool down
for about 15 to 30
minutes.
Once the temperature
is down, the unit will
recover when the
impact rate selector
switch is pressed.
Press the impact rate
selector switch to
recover. Try to avoid
tasks that will apply
excess pressure to
the unit.
1 Connect the unit
to a power supply
matching the input
voltage specifi ed
on the nameplate.
Press the impact
rate selector switch
to recover.
2 Allow for an interval
of 3 seconds
or more when
plugging the power
cord in and out.
Press the impact
rate selector switch
to recover.
Press the impact rate
selector switch to
recover. Repair may
be required if this error
continuously occurs.
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