Functional Description; Overload Protection; Overheat Protection; Overdischarge Protection - Makita DUC256 Instruction Manual

FUNCTIONAL
DESCRIPTION
CAUTION:
Always be sure that the tool is
switched off and the battery cartridge is removed
before adjusting or checking function on the tool.
Installing or removing battery cartridge
CAUTION:
Always switch off the tool before
installing or removing of the battery cartridge.
CAUTION:
Hold the tool and the battery car-
tridge firmly when installing or removing battery
cartridge. Failure to hold the tool and the battery
cartridge firmly may cause them to slip off your hands
and result in damage to the tool and battery cartridge
and a personal injury.
► Fig.3: 1. Red indicator 2. Button 3. Battery cartridge
To remove the battery cartridge, slide it from the tool
while sliding the button on the front of the cartridge.
To install the battery cartridge, align the tongue on the
battery cartridge with the groove in the housing and slip
it into place. Insert it all the way until it locks in place
with a little click. If you can see the red indicator as
shown in the figure, it is not locked completely.
CAUTION:
Always install the battery cartridge
fully until the red indicator cannot be seen. If not,
it may accidentally fall out of the tool, causing injury to
you or someone around you.
CAUTION:
Do not install the battery cartridge
forcibly. If the cartridge does not slide in easily, it is
not being inserted correctly.
Indicating the remaining battery
capacity
► Fig.4: 1. Battery indicator 2. Check button
Press the check button to indicate the remaining battery
capacities. The battery indicators correspond to each
battery.
Battery indicator status
On Off
Remaining
battery
capacity
Blinking
50% to 100%
20% to 50%
0% to 20%
Charge the
battery
Indicating the remaining battery capacity
Only for battery cartridges with the indicator
► Fig.5: 1. Indicator lamps 2. Check button
Press the check button on the battery cartridge to indi-
cate the remaining battery capacity. The indicator lamps
light up for a few seconds.
Indicator lamps
Lighted
NOTE: Depending on the conditions of use and the
ambient temperature, the indication may differ slightly
from the actual capacity.
NOTE: The first (far left) indicator lamp will blink when
the battery protection system works.
Tool / battery protection system
The tool is equipped with a tool/battery protection sys-
tem. This system automatically cuts off power to the
motor to extend tool and battery life. The tool will auto-
matically stop during operation if the tool or battery is
placed under one of the following conditions:

Overload protection

When the battery is operated in a manner that causes it to
draw an abnormally high current, the tool automatically stops
and the main power lamp blinks in green. In this situation,
turn the tool off and stop the application that caused the tool
to become overloaded. Then turn the tool on to restart.

Overheat protection

When the tool or battery is overheated, the tool stops automat-
ically and the main power lamp lights up in red. In this case, let
the tool and battery cool before turning the tool on again.
NOTE: In high temperature environment, the over-
heat protection likely to work and the tool stops
automatically.

Overdischarge protection

When the battery capacity is not enough, the tool stops
automatically and the main power lamp blinks in red. In
this case, remove the battery from the tool and charge
the battery.
13 ENGLISH
Off Blinking
malfunctioned.
Remaining
capacity
75% to 100%
50% to 75%
25% to 50%
0% to 25%
Charge the
battery.
The battery
may have