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Electronic control
○ Soft-start
○ Overload protection
This protection feature cuts off the power to the motor
in the event of overloading of motor or a conspicuous
reduction in rotational speed during operation.
When the overload protection feature has been
activated, the motor may stop.
In this case, release the tool switch and eliminate causes
of overloading.
After that you can use it again.
○ Overheat protection
This protection feature cuts off the power to the motor
and stops the power tool in the event of overheating of
motor during operation.
When the overheat protection feature has been
activated, the motor may stop.
In this case, release the tool switch and cool it down in a
few minutes.
After that you can use it again.
○ Rotation speed changeover function (Power mode /
Silent mode) (See Fig. 17)
2. Battery
Model
Voltage
Battery capacity
CHARGING
Before using the power tool, charge the battery as follows.
1. Connect the charger's power cord to the receptacle.
When connecting the plug of the charger to a receptacle,
the charge indicator lamp will blink in red (At 1- second
intervals).
2. Insert the battery into the charger.
Firmly insert the battery into the charger as shown in
Fig. 23 (on page 5).
3. Charging
When inserting a battery in the charger, the charge
indicator lamp will blink in blue.
When the battery becomes fully recharged, the charge
indicator lamp will light up in green. (See Table 1)
(1) Charge indicator lamp indication
The indications of the charge indicator lamp will be as
shown in Table 1, according to the condition of the
charger or the rechargeable battery.
BSL1850MA
18 V
5.0 Ah
Charger
Status of indicator
status
ON/OFF at 0.5 sec.
Before
intervals (RED)
charging
Lights for 0.5 sec. at
intervals of 1 sec.
(BLUE)
Lights for 1 sec. at
While
intervals of 0.5 sec.
charging
(BLUE)
Lights continuously
(BLUE)
Lights continuously
(GREEN)
Charging
complete
(Continuous buzzer
sound: about 6 sec.)
ON/OFF at 0.3 sec.
Overheat
intervals (RED)
standby
ON/OFF at 0.1 sec.
intervals (PURPLE)
Charging
impossible
(Intermittent buzzer
sound: about 2 sec.)
*1 If the red lamp continues to blink even after the charger
has been attached, check to confi rm that the battery has
been fully inserted.
*2 Although charging will start once the battery has cooled
down even when left in situ, the best practice is to
remove the battery and allow it to cool down in a shaded,
well-ventilated location before charging.
*3
○ Fully insert the battery.
○ Check to confi rm that no foreign matter is stuck to the
battery mount or terminals.
<If charging takes a long time>
○ Charging will take longer at extremely low ambient
temperatures. Charge the battery in a warm location
(such as indoors).
○ Do not block the air vent. Otherwise the interior will
overheat, reducing the charger's performance.
○ If the cooling fan is not operating, contact a HiKOKI
Authorized Service Center for repairs.
(2) Regarding the temperatures and charging time of the
rechargeable battery
The temperatures and charging time will become as
shown in Table 2.
16
Table 1
Indication meaning
lamp
Plugged into power
source *
1
Charged at less than
50%
Charged at less than
80%
Charged at more
than 80%
Battery overheated.
Unable to charge. *
Malfunction in
the battery or the
charger *
3
2
