Overload Protection; Overheat Protection - Makita DCU180 Manuel D'instructions

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 is emitted
before the machine stops automatically. The battery
indicators and LED indicators blink while the beep
sound is emitted.

Overload protection

When the machine is operated in a manner that causes
it to draw an abnormally high current, the machine auto-
matically stops without any indication. In this situation,
turn the machine off and remove the cause of overload,
and then turn the machine on to restart.

Overheat protection

When the machine is overheated, the machine stops
automatically. Let the machine cool down before turning
the machine on again. The overheat protection is likely
to work under high temperature environment.
Overdischarge protection
When the battery capacity becomes low, the machine
stops automatically. If the machine does not operate
even when the switches are operated, remove the
battery cartridge and charge it.
Switching the battery cartridge
► Fig.27: 1. Battery selection switch
Up to two battery cartridges can be installed in the
battery box, although the machine uses one battery
cartridge for operation. Before operating the machine,
select the battery cartridge used for operation by press-
ing the number on the battery selection switch.
NOTICE:
If only one battery cartridge is installed in
the battery box, be sure to select the battery box in
which the battery cartridge is installed.
Indicating the remaining battery
capacity on the battery box
CAUTION:
Before checking the remaining
battery capacities or switching the battery car-
tridge, be sure to stop the machine.
► Fig.28: 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
CAUTION:
When the battery capacity
becomes low, a short beep sound is emitted.
If you continue to operate the machine at low
battery capacity, a long beep sound is emitted
and the machine automatically stops. When you
hear the short beep sound, pull the brake lever
and lock the brake, and then switch the battery
cartridge to a charged one or charge the battery
cartridge. When the remaining battery capacity runs
out, the machine suddenly stops automatically and
this may cause an injury.
NOTE: If you continue to pull the switch trigger even
if you hear the short beep sound, the machine stops
automatically. After the machine stops automatically,
the beep sound continues and the support brake
(electric brake) is enabled. To cancel the beep sound
and release the support brake, pull the brake lever
and release the switch trigger. Do not push the
machine forcibly without releasing the support brake.
After releasing the support brake, you can tell which
battery protection system is working by checking the
battery indicator status.
► Fig.29: 1. Lighting 2. Blinking 3. Turned off
4. Overheat protection 5. Overdischarge
protection 6. Overload protection
CAUTION:
If the beep sound is emitted while
operating on slopes or the machine stops auto-
matically on slopes, move the machine to a safe
place, lock the brake, and then switch the battery
cartridge to a charged one or charge the battery
cartridge.
If the load is large, and the beep sound is emit-
ted while operating on slopes or the machine
stops automatically on slopes, do not move the
machine forcibly. Lock the brake, pay attention to
safety and switch the battery cartridge to a charged
one, and then move the machine to a safe place.
Reduce the load before operating the machine again.
18 ENGLISH
Remaining battery
capacity
Off
50% - 100%
20% - 50%
0% - 20%
Battery not
installed