Specifications; Mounting And Operation - Hitachi DH 45ME Handling Instructions Manual

English
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 16.
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
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)
NOTE
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)
Figure Page
1 17
2 17
3 17
4 17
5 17
6 18
7 18
8 18
9 19
10 19
11 19
12 19
– 20, 21
". Pressing the Continuous
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.
Display
lamp Cause
fl ashing
The tool's
temperature
increase protection
function gradually
Flash
reduced the
rotation speed
as the internal
temperature of the
tool approached
or
the specifi ed
temperature range
for automatic
shutdown.
(110 V,
(Power regulation
120 V,
function)
* The power
127 V
regulation function
ONLY)
will not activate if
only one or two of
the display lamp
bars are lighting.
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)
4
Table 1
Solution
The tool will return to
normal power once the
temperature is lowered
by reducing its load.
Continued operation
may result in automatic
shutdown by the tool's
temperature increase
protection function.
(See row below)
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.