Makita DGA408 Manuel D'instructions page 11

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 indicators light 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 indication. 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 is overheated, the tool stops automati-
cally and the battery indicator shows following state. In
this situation, let the tool cool before turning the tool on
again.
On
If the tool does not start, the battery may be overheated.
In this situation, let the battery cool before starting the
tool 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.
Releasing protection lock
When the protection system works repeatedly, the tool
is locked and the battery indicator shows the following
state.
In this situation, the tool does not start even if turning
the tool off and on. To release the protection lock,
remove the battery, set it to the battery charger and wait
until the charging finishes.
On
Shaft lock
Press the shaft lock to prevent spindle rotation when
installing or removing accessories.
► Fig.4: 1. Shaft lock
NOTICE:
Never actuate the shaft lock when the
spindle is moving. The tool may be damaged.
Blinking
Off
Blinking
Switch action
CAUTION:
Before installing the battery car-
tridge into the tool, always check to see that the
switch lever actuates properly and returns to the
"OFF" position when released.
CAUTION:
Do not pull the switch lever hard
without pulling the lock-off lever. This can cause
switch breakage.
To prevent the switch lever from being accidentally
pulled, a lock-off lever is provided.
To start the tool, pull the lock-off lever toward the opera-
tor and then pull the switch lever.
To stop the tool, release the switch lever.
► Fig.5: 1. Lock-off lever 2. Switch lever
Automatic speed change function
► Fig.6: 1. Mode indicator
Mode indicator status
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.
Accidental re-start preventive
function
Even if installing the battery cartridge while pulling the
switch lever, the tool does not start.
To start the tool, first release the switch lever. Then pull
the lock-off lever, and pull the switch lever.
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.
Soft start feature
Soft start feature reduces starting reaction.
Electric brake
Electric brake is activated after the tool is switched off.
The brake does not work when the power supply is shut
down, such as the battery is removed accidentally, with
the switch still on.
11 ENGLISH
Operation mode
High speed mode
High torque mode