Overload Protection; Overheat Protection; Overdischarge Protection - Makita DCU603 Instruction Manual

2. Pull out the battery cartridge from the battery box
while sliding the button on the front of the cartridge.
► Fig.32: 1. Button
3.
Turn the lock key counterclockwise, and pull it out.
4. Close the cover of the battery box.
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 cartridge is under one of the
following conditions.
A short beep sound or long beep sound is emitted
before the machine stops automatically. The battery
indicators and lamps on the control panel blink while the
beep sound is emitted.
NOTE: To cancel the beep sound, release the switch
trigger and pull the brake lever.

Overload protection

When the machine/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 such as reducing the loaded
objects. Then turn the machine on to restart.

Overheat protection

When the machine is overheated, the machine stops
automatically and the main power lamp lights up in red.
In this case, let the machine and battery cool before
turning the machine on again.

Overdischarge protection

When the battery capacity is not enough, the main
power lamp and the corresponding battery indicator
blink in red. In this case, switch the battery cartridges,
or change the battery cartridges to fully charged ones,
or remove the battery cartridges from the machine and
charge them.
NOTE: The main power lamp blinks in red when the
battery is overheated.
Protections against other causes
NOTICE:
The main power lamp blinks in green
and red alternately when the abnormality occurs
in the machine. In this case, refer to the section
for troubleshooting.
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.
NOTICE:
If no improvement can be found or
the machine stops due to a cause not described
above, refer to the section for troubleshooting.
Indicating the remaining battery
capacity
CAUTION:
Before checking the remaining
battery capacities or switching the battery car-
tridges, be sure to stop the machine.
CAUTION:
When the battery capacity
becomes low, a short beep sound is emitted. In
this case, lock the brake lever, and then switch
the battery cartridges to charged ones or charge
the battery cartridges. If you continue to operate the
machine at low battery capacity and the remaining
battery capacity runs out, a long beep sound is emit-
ted and the machine automatically stops and this may
cause an accident or injury.
CAUTION:
If the beep sound is emitted while
operating on slopes, move the machine to a safe
place, lock the brake lever, and then switch the
battery cartridges to charged ones or charge the
battery cartridges.
CAUTION:
If the load is large and the beep
sound is emitted while operating on slopes, lock
the brake lever and pay attention to safety and
switch the battery cartridges to charged ones.
Move the machine to a safe place and lock the
brake lever. Reduce the load before operating the
machine again. For details, refer to the section for
troubleshooting.
Checking the battery level on the
battery box
► Fig.33: 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 Blinking
27 ENGLISH
Remaining
battery
capacity
Off
50% - 100%
20% - 50%
0% - 20%
Empty
Battery not
installed