Makita DDA450 Betriebsanleitung Seite 7

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 tool/battery is operated in a manner that causes it to
draw an abnormally high current, the tool stops automatically. 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/battery is overheated, the tool stops
automatically and the lamp will blink. In this situation, let
the tool cool down before turning the tool on again.
Overdischarge protection
When the battery capacity is not enough, the tool stops
automatically. In this case, remove the battery from the
tool and charge the battery.
Switch action
CAUTION:
Before installing the battery car-
tridge into the tool, always check to see that the
switch trigger actuates properly and returns to
the "OFF" position when released.
► Fig.3: 1. Switch trigger
To start the tool, pull the switch trigger. Tool speed is
increased by increasing pressure on the switch trigger.
Release the switch trigger to stop.
NOTE: The tool automatically stops if you keep pull-
ing the switch trigger for about 6 minutes.
Lighting up the front lamp
CAUTION:
Do not look in the light or see the
source of light directly.
► Fig.4: 1. Lamp
Pull the switch trigger to light up the lamp. The lamp
keeps on lighting while the switch trigger is being pulled.
The lamp goes out approximately 10 seconds after
releasing the switch trigger.
NOTE: When the tool is overheated, the tool stops
automatically and the lamp starts flashing. In this
case, release the switch trigger. The lamp turns off in
1 minute(s).
NOTE: Use a dry cloth to wipe the dirt off the lens of
the lamp. Be careful not to scratch the lens of lamp, or
it may lower the illumination.
Reversing switch action
CAUTION:
Always check the direction of
rotation before operation.
CAUTION:
Use the reversing switch only after
the tool comes to a complete stop. Changing the
direction of rotation before the tool stops may dam-
age the tool.
CAUTION:
When not operating the tool,
always set the reversing switch lever to the neu-
tral position.
This tool has a reversing switch to change the direction
of rotation. Depress the reversing switch lever from the
A side for clockwise rotation or from the B side for coun-
terclockwise rotation.
When the reversing switch lever is in the neutral posi-
tion, the switch lever cannot be pulled.
► Fig.5: 1. Reversing switch lever
Speed change
NOTICE:
Use the speed change knob only after
the tool comes to a complete stop. Changing the
tool speed before the tool stops may damage the tool.
NOTICE:
Always set the speed change knob
carefully into the correct position. If you operate
the tool with the speed change knob positioned half-
way between the position 1 and the position 2, the
tool may be damaged.
NOTICE:
If the rotation speed significantly
decreases during operation in the high speed
mode, stop the tool and change the mode to the
low speed mode. Otherwise, the motor may get
overloaded and cause a malfunction or fire.
Two speed ranges can be preselected with the speed
change knob.
To change the speed, turn the speed change knob so
that the pointer points to the position 1 for low speed
mode or the position 2 for high speed mode.
► Fig.6: 1. Pointer 2. Speed change knob
Electronic function
Electric brake
This tool is equipped with an electric brake. If the tool
consistently fails to quickly cease to function after the
switch trigger is released, have the tool serviced at a
Makita service center.
Soft start feature
This function allows the smooth start-up of the tool by
limiting the start-up torque.
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