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○ When the pilot lamp fl ickers in red (at 0.2-seconds
intervals), check for and take out any foreign objects in
the charger's battery connector. If there are no foreign
objects, it is probable that the battery or charger is
malfunctioning. Take it to your authorized Service
Center.
○ Since the built-in micro computer takes about 3 seconds
to confi rm that the battery being charged with chargers
are taken out, wait for a minimum of 3 seconds before
reinserting it to continue charging. If the battery is
reinserted within 3 seconds, the battery may not be
properly charged.
MOUNTING AND OPERATION
Action
Names of parts - Cordless rotary
hammer
Names of parts - Dust extractor
system for Rotary hammer*
Removing and inserting the
battery
Charging
Indicator lamp lights when battery
is low
Installing / Removing the side
handle
Inserting SDS-plus drilling tools
Removing SDS-plus drilling tools
Selecting rotation direction
Selecting the operating mode
Adjusting the drilling depth
Changing the chisel position
Switch operation
Setting the speed
Auto stop function
How to use the LED light
Cleaning of the battery installation
compartment
Selecting accessories
* For details on how to use the Dust extractor system, refer
to the system's instruction manual.
SELECT OPERATION MODE
Pressing the changeover switch allows the selection of
rotation speed and the auto stop function.
○ Rotation speed (Low mode/Normal mode) (Fig. 14)
Select either Low mode or Normal mode and operate the
tool in the selected speed.
○ Auto stop mode (on/off ) (Fig. 15)
This product is equipped with an auto stop function to
support continuous drilling work. The function features a
memory mode for storing the work time for drilling from
switch ON to switch OFF, and an auto stop mode that
automatically stops the motor from the second drilling
onward should the work exceed the stored work time
while the switch is ON.
AUTO STOP FUNCTION
In selection mode, pressing the button for longer than two
seconds will move to memory mode. (Fig. 15)
(At the same time the auto stop lamp will blink.)
Conduct drilling when the auto stop lamp is fl ashing. The
time between switching ON and switching OFF is stored by
the tool.
(At the same time, the auto stop lamp will light up.)
Conduct drilling when the auto stop lamp is fl ashing.
Continuous drilling is possible as the memory storage time
will be recorded by the tool until the auto stop function's auto
stop mode is cancelled.
The auto stop function is cancelled by pressing the
changeover switch once again for over two seconds.
(At the same time, the auto stop lamp will switch off .)
Figure
Page
CAUTION
○ Switch ON the tool once you place the tip of the tool on
1
2
○ The rotation speed and the level at which the switch is
2
2
○ Fully carry out drilling in one go during auto stop mode.
3
3
○ The motor will stop even if you switch OFF within the
4
3
○ When you switch OFF within the memory storage time,
5
3
○ The auto stop function will remain active until canceled.
6
3
REACTIVE FORCE CONTROL
7
4
8
4
This product is equipped with a Reactive Force Control
9
4
(RFC) feature that reduces jerking of the tool body.
If the tool bit is suddenly overburdened, any jerking of the
10
4
tool body is reduced by activation of the slip clutch or by
stopping of the motor by the sensor built into the tool body.
11
4
If the motor is stopped because of overburdening detection
12
4
by the controller, the RFC indicator lamp will blink while the
switch is pulled. In addition, the lamp will continue blinking
13
5
for approximately three seconds after the switch is released.
14
5
The motor will remain stopped while the lamp is blinking.
(Fig. 18)
15
5
Because the RFC feature may not activate or its performance
16
5
may be insuffi cient depending on the working environment
and conditions, be careful not to suddenly overburden the
17
5
tool bit while operating.
―
215, 216
● Possible causes of sudden overburdening
Also, other causes include any combination of the
aforementioned.
● When the reactive force control (RFC) is triggered
11
the work material.
pulled during drilling is not stored to memory.
memory storage time.
the count will be reset. If you rework a task in which a
hole has been partially drilled, the memory storage time
will be fully recounted.
Tool bit biting into material
Impact against nails, metal or other hard objects
Tasks involving prying or any excess application of
pressure, etc.
When the RFC is triggered and the motor stops, turn
off the tool's switch and remove the cause of the
overburdening before continuing operation.
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