Overload Protection; Overheat Protection; Overdischarge Protection - Makita LM004J Instruction Manual

3. Close the battery cover and push it until it is
latched with the locking lever.
To remove the battery cartridge;
1.
Pull up the locking lever and open the battery
cover.
2. Push the battery lock lever, and then pull out the
battery cartridge from the machine.
► Fig.19: 1. Battery lock lever 2. Battery cartridge
3. Close the battery cover.
Machine / battery protection system
The machine is equipped with a machine/battery
protection system. This system automatically cuts off
power to the motor to extend machine and battery life.
The machine will automatically stop during operation if
the machine or battery is placed under one of the fol-
lowing conditions:

Overload protection

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

Overheat protection

If the machine or battery cartridge is overheated, the
machine stops automatically. When the machine is
overheated, the main power lamp lights up in red. When
the battery cartridge is overheated, the main power
lamp blinks in red. Let the machine and/or battery cool
down before turning the machine on again.

Overdischarge protection

When the battery capacity is not enough, the machine
stops automatically and the main power lamp blinks in
red.
In this case, remove the battery from the machine and
charge the battery cartridge or change the battery car-
tridge to fully charged one.
Protections against other causes
Protection system is also designed for other causes that
could damage the machine and allows the machine to
stop automatically. Take all the following steps to clear
the causes, when the machine has been brought to a
temporary halt or stop in operation.
1. Turn the machine off, and then turn it on again to
restart.
2. Charge the battery(ies) or replace it/them with
recharged battery(ies).
3. Let the machine and battery(ies) cool down.
If no improvement can be found by restoring protection
system, then contact your local Makita Service Center.
NOTICE:
If the machine stops due to a cause
not described above, refer to the section for
troubleshooting.
Indicating the remaining battery
capacity
► Fig.20: 1. Battery indicator
When the remaining battery capacity gets low, the bat-
tery indicator blinks on the applicable battery side. By
further use, the machine stops and the battery indicator
lights up. In this situation, charge the battery cartridge.
Indicating the remaining battery
capacity
Press the check button on the battery cartridge to indi-
cate the remaining battery capacity. The indicator lamps
light up for a few seconds.
► Fig.21: 1. Indicator lamps 2. Check button
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.
Control panel
The control panel has the main power switch and the
mode switching button.
► Fig.22: 1. Soft no-load mode lamp 2. Noise reduc-
tion mode lamp 3. Mode switching button
4. Main power lamp 5. Main power switch
Main power switch
WARNING:
switch when not in use.
To turn on the machine, press the main power switch.
The main power lamp lights up in green. To turn off the
machine, press the main power switch again.
17 ENGLISH
Off Blinking
Always turn off the main power
Remaining
capacity
75% to 100%
50% to 75%
25% to 50%
0% to 25%
Charge the
battery.
The battery
may have
malfunctioned.