Makita DGA900 Instruction Manual page 8

Shaft lock
Press the shaft lock to prevent spindle rotation when
installing or removing accessories.
1
► 1. Shaft lock
NOTICE:
Never actuate the shaft lock when the
spindle is moving. The tool may be damaged.
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.
CAUTION:
For your safety, this tool is equipped
with lock-off lever which prevents the tool from unin-
tended starting. NEVER use the tool if it runs when
you simply pull the switch trigger without pulling the
lock-off lever. Return the tool to our authorized ser-
vice center for proper repairs BEFORE further usage.
CAUTION:
NEVER tape down or defeat pur-
pose and function of lock-off lever.
To prevent the switch lever from being accidentally
pulled, a lock-off lever is provided.
To start the tool, fold the lock-off lever and then pull the
switch lever.
To stop the tool, release the switch lever.
2
► 1. Lock-off lever 2. Switch lever
1
Automatic speed change function
► 1. Mode indicator
Mode indicator status
On
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.
8 ENGLISH
1
Operation mode
Off
High speed mode
High torque mode