11
English
NOTE
The recharging time may vary according to the ambient
temperature and power source voltage.
4. Disconnect the charger’s power cord from the
receptacle.
5. Hold the charger
fi
rmly and pull out the battery.
NOTE
Be sure to pull out the battery from the charger after use,
and then keep it.
Regarding electric discharge in case of new batteries,
etc.
As the internal chemical substance of new batteries and
batteries that have not been used for an extended period
is not activated, the electric discharge might be low when
using them the
fi
rst and second time. This is a temporary
phenomenon, and normal time required for recharging
will be restored by recharging the batteries 2 – 3 times.
How to make the batteries perform longer.
(1) Recharge the batteries before they become completely
exhausted.
When you feel that the power of the tool becomes
weaker, stop using the tool and recharge its battery.
If you continue to use the tool and exhaust the electric
current, the battery may be damaged and its life will
become shorter.
(2) Avoid recharging at high temperatures.
A rechargeable battery will be hot immediately after
use. If such a battery is recharged immediately after
use, its internal chemical substance will deteriorate, and
the battery life will be shortened. Leave the battery and
recharge it after it has cooled for a while.
CAUTION
○
If the battery is charged while it is heated because
it has been left for a long time in a location subject to
direct sunlight or because the battery has just been
used, the charge indicator lamp of the charger lights
for 0.3 seconds, does not light for 0.3 seconds (o
ff
for
0.3 seconds). In such a case,
fi
rst let the battery cool,
then start charging.
○
When the charge indicator lamp
fl
ickers (at 0.2-second
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 con
fi
rm that the battery being charged with
UC18YSL3 is 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
Figure
Page
Removing and inserting the battery
2
2
Charging
3
2
Remaining battery indicator
4
2
Installing / Removing the side handle
5
3
Inserting SDS-plus drilling tools
6
3
Removing SDS-plus drilling tools
7
3
Selecting rotation direction
8
3
Selecting the operating mode
9
3
Adjusting the drilling depth
10
4
Changing the chisel position
11
4
Switch operation
12
4
How to use the LED light
13
4
Cleaning of the battery installation
compartment
14
4
Charging a USB device from a
electrical outlet
15-a
5
Charging a USB device and battery
from a electrical outlet
15-b
5
How to recharge USB device
16
5
When charging of USB device is
completed
17
5
Selecting accessories
―
68, 69
REACTIVE FORCE CONTROL
This product is equipped with a Reactive Force Control
(RFC) feature that reduces jerking of the tool body.
If the tool bit is suddenly overburdened, any jerking of the
tool body is reduced by activation of the slip clutch or by
stopping of the motor by the sensor built into the tool body.
If the motor is stopped because of overburdening detection
by the controller, the RFC indicator lamp will blink while the
switch is pulled. In addition, the lamp will continue blinking
for approximately three seconds after the switch is released.
The motor will remain stopped while the lamp is blinking.
(
Fig. 18
)
Because the RFC feature may not activate or its performance
may be insu
ffi
cient depending on the working environment
and conditions, be careful not to suddenly overburden the
tool bit while operating.
●
Possible causes of sudden overburdening
1
Tool bit biting into material
2
Impact against nails, metal or other hard objects
3
Tasks involving prying or any excess application of
pressure, etc.
Also, other causes include any combination of the
aforementioned.
●
When the reactive force control (RFC) is triggered
When the RFC is triggered and the motor stops, turn
o
ff
the tool’s switch and remove the cause of the
overburdening before continuing operation.
Fig. 18
0000Book̲DH36DPA.indb 11
0000Book̲DH36DPA.indb 11
2018/08/21 9:25:31
2018/08/21 9:25:31