Hitachi DH 52MEY Mode D'emploi page 4

English
STANDARD ACCESSORIES
In addition to the main unit (1 unit), the package
contains the accessories listed in the below.
○ Plastic case ................................................................ 1
○ Side handle ................................................................. 1
○ Stopper ...................................................................... 1
○ Hammer Grease A ..................................................... 1
Standard accessories are subject to change without notice.
APPLICATIONS
Rotation and hammering function
○ Drilling anchor holes
○ Drilling holes in concrete
Hammering only function
○ Crushing concrete, chipping, digging, and squaring
(by applying optional accessories)
SPECIFICATIONS
The specifi cations of this machine are listed in the Table on
page 105.
NOTE
Due to HiKOKI's continuing program of research and
development, the specifi cations herein are subject to
change without prior notice.
MOUNTING AND OPERATION
Action
Inserting SDS-max tools
Removing SDS-max tools
Changing tool direction
Selecting the operating mode
Switching on and off
About the power lamp
Speed change
Install the stopper
Using tapershank adapter
Removing tapershank adapter
Mounting core bit
Mounting guide plate and center pin
Selecting accessories*
* 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.
Using Continuous operation button
NOTE
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
Display
Figure Page
fl ashing
1 106
2 106
3 106
4 106
5 106
6 107
7 107
8 107
9 108
10 108
11 108
12 108
– 109, 110
4
The Continuous operation button feature is only available
for "Hammering Mode
operation button will switch on a blue LED that indicates
the activation of the Continuous operation function which
will keep the tool running even after the trigger switch is
released. To cancel the function, press the Continuous
operation button again or push the trigger switch to the
ON position. (Fig. 14)
Continuous operation will be deactivated when the
switch is pressed. During continuous operation, keep
your hand away from the switch and grip the lower part
of the handle to avoid any unintentional contact with the
switch. (Fig.15)
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
lamp Cause
Internal temperature
has risen beyond
Flash
the unit's specifi ed
temperature.
(Temperature
increase protection
function)
Excessive pressure
Flash
applied to the tool
has resulted in an
overload.
(Overload
protection function)
Tool is connected
to a power source
Flash
whose voltage is
either too high or
too low.
(Circuit protection
function)
Sensor signal read
Flash
error.
(Control monitoring
function)
". Pressing the Continuous
Solution
Turn off the unit
and allow it to cool
down for about 15 to
30 minutes.
When the temperature
goes down, press the
rotation speed selector
switch to recover.
Press the rotation
speed selector switch
to recover. Try to avoid
tasks that will apply
excess pressure to
the unit.
Connect the unit to a
power supply matching
the input voltage
specifi ed on the
nameplate. Press the
rotation speed selector
switch to recover.
Press the rotation
speed selector switch
to recover. Repair may
be required if this error
continuously occurs.