Makita DGA402 Instruction Manual page 13

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
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.
Overheat protection
When the tool/battery is overheated, the tool stops automati-
cally. 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.
Protections against other causes
Protection system is also designed for other causes that could
damage the tool and allows the tool to stop automatically.
Take all the following steps to clear the causes, when the tool
has been brought to a temporary halt or stop in operation.
1. Turn the tool 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 tool and battery(ies) cool down.
If no improvement can be found by restoring protection
system, then contact your local Makita Service Center.
Indication lamp with multi function
► Fig.3: 1. Indication lamp
Indication lamps are located in two positions.
When the battery cartridge is inserted on the tool with the slide
switch positioned in the "O (OFF)", the indication lamp blinks
quickly for approximately one second. If it does not blink so,
the battery cartridge or indication lamp may be broken.
Overload protection
• When the tool becomes overloaded, the indica-
tion lamp lights up. When the load on the tool is
reduced, the lamp goes out.
• If the tool continues to be overloaded and the indi-
cation lamp continues to light up for approximately
two seconds, the tool stops. This prevents the
motor and its related parts from being damaged.
• In this situation, move the slide switch to the "O
(OFF)" position once. And then move it to the "I
(ON)" position again to restart.
Battery cartridge replacing signal
When the remaining battery capacity is low, the indica-
tor lamp lights up during operation earlier than that of
high battery capacity.
Accidental re-start preventive
function
• Even if the battery cartridge is inserted on the tool
with the slide switch in the "I (ON)" position, the
tool does not start. In this situation, the lamp flick-
ers slowly. It indicates that the accidental re-start
preventive function is at work.
• To start the tool, first slide the slide switch toward
the "O (OFF)" position and then slide it toward the
"I (ON)" position.
Shaft lock
WARNING:
the spindle is moving. It may cause serious injury or
the tool damage.
Press the shaft lock to prevent spindle rotation when
installing or removing accessories.
► Fig.4: 1. Shaft lock
Switch action
CAUTION:
Before installing the battery car-
tridge into the tool, always check to see that the
slide switch actuates properly and returns to the
"OFF" position when the rear of the slide switch
is depressed.
CAUTION:
Switch can be locked in "ON" posi-
tion for ease of operator comfort during extended
use. Apply caution when locking tool in "ON"
position and maintain firm grasp on tool.
To start the tool, press down the rear end of the slide switch and
then slide it toward the "I (ON)" position. For continuous opera-
tion, press down the front end of the slide switch to lock it.
► Fig.5: 1. Slide switch
To stop the tool, press down the rear end of the slide
switch so that it returns to the "O (OFF)" position.
► Fig.6: 1. Slide switch
ASSEMBLY
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 side grip (handle)
CAUTION:
Always be sure that the side grip is
installed securely before operation.
Screw the side grip securely on the position of the tool
as shown in the figure.
► Fig.7
13 ENGLISH
Never actuate the shaft lock when