Functional Description; Overload Protection; Overdischarge Protection - Makita DUH502 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.1: 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
Only for battery cartridges with the indicator
► Fig.2: 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 Off
Remaining
capacity
Blinking
75% to 100%
50% to 75%
25% to 50%
0% to 25%
Charge the
battery.
The battery
may have
malfunctioned.
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:
Status
Overload
Overheat
Over
discharge

Overload protection

If the tool is overloaded by entangled branches or other
debris, and the middle indicators start blinking and
the tool automatically stops.
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.
NOTICE:
Depending on the usage conditions,
the tool is automatically turned off without any
indication if the tool is overloaded by entangled
branches or debris. In this case, switch off the
tool and remove the battery cartridge, and then
remove entangled branches or debris using tools
such as pliers. After removing the branches or
debris, install the battery cartridge and turn on
the tool again.
Overheat protection for tool or battery
There are two types of overheating; tool overheating
and battery overheating. When the tool over heating
occurs, all speed indicators blink. When the battery over
heating occurs,
If the overheating occurs, the tool stops automatically. Let the
tool and/or battery cool down before turning the tool on again.

Overdischarge protection

When the battery capacity becomes low, the tool stops
automatically and
If the tool does not operate even when the switches are oper-
ated, remove the battery from the tool and charge the battery.
12 ENGLISH
Indicator lamps
On Off
indicator blinks.
indicator blinks.
Blinking