Makita DGA404 Instruction Manual page 9

Electronic torque control function
The tool electronically detects situations where the
wheel or accessory may be at risk to be bound. In the
situation, the tool is automatically shut off to prevent
further rotation of the spindle (it does not prevent
kickback).
To restart the tool, switch off the tool first, remove the
cause of sudden drop in the rotation speed, and then
turn the tool on.
Indicating the remaining battery capacity
(Only for battery cartridges with "B" at the end of the
model number.)
Fig.3
Press the check button on the battery cartridge to
indicate the remaining battery capacity. The indicator
lamps light up for few seconds.
Indicator lamps
Lighted Off
015658
NOTE:
Depending on the conditions of use and the
•
ambient temperature, the indication may differ
slightly from the actual capacity.
Indicating remaining battery capacity
(Country specific)
Fig.4
When you turn the tool on, the battery indicator shows
the remaining battery capacity.
The remaining battery capacity is shown as the
following table.
Remaining
capacity
Blinking
75% to 100%
50% to 75%
25% to 50%
0% to 25%
Charge the
battery.
The battery
may have
malfunctioned.
Battery indicator status
Blinking
On Off
015096
Automatic speed change function
Fig.5
Mode indicator status
015098
This tool has "high speed mode" and "high torque
mode". It automatically changes operation mode
depending on the work load. When mode indicator lights
up during operation, the tool is in high torque mode.
Tool / battery protection system
The tool is equipped with a tool/battery protection
system. This system automatically cuts off power to the
motor to extend tool and battery life.
The tool will automatically stop during operation if the
tool or battery is placed under one of the following
conditions. In some conditions, the indicator lights up.
Overload protection
When the tool is operated in a manner that causes it to
draw an abnormally high current, the tool automatically
stops without any indications. 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 for tool
When the tool
automatically and the battery indicator shows following
state. In this situation, let the tool cool before turning the
tool on again.
Battery indicator
015140
9
Remaining battery capacity
50% - 100%
20% - 50%
0% - 20%
Charge the battery
Operation mode
High speed mode
High torque mode
is overheated, the
On Off
Tool is overheated
tool stops
Blinking