Electronic Function - Makita GA042G Instruction Manual

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.
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:
For your safety, this tool is
equipped with lock-off lever which prevents the
tool from unintended starting. NEVER use the tool
if it runs when you simply pull the switch lever
without pulling the lock-off lever. Return the tool
to our authorized service center for proper repairs
BEFORE further usage.
CAUTION:
Do not pull the switch lever hard
without pulling the lock-off lever. This can cause
switch breakage.
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, pull the lock-off lever toward the opera-
tor and then pull the switch lever.
To stop the tool, release the switch lever.
► Fig.3: 1. Lock-off lever 2. Switch lever
Speed adjusting dial
Only for model GA042G / GA043G / GA044G
The rotation speed of the tool can be changed by turn-
ing the speed adjusting dial. The table below shows
the number on the dial and the corresponding rotation
speed.
► Fig.4: 1. Speed adjusting dial
Number
1
2
3
4
5
Speed
-1
3,000 min
-1
4,500 min
-1
6,000 min
-1
7,500 min
-1
8,500 min
NOTICE:
If the tool is operated continuously at
low speed for a long time, the motor will get over-
loaded, resulting in tool malfunction.
NOTICE:
The speed adjusting dial can be turned
only as far as 5 and back to 1. Do not force it past
5 or 1, or the speed adjusting function may no
longer work.
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.
If the tool consistently fails to quickly stop after turning
off the switch, have the tool serviced at a Makita Service
Center.

Electronic function

Accidental re-start preventive
function
When installing the battery cartridge while the switch is
ON, the tool does not start.
To start the tool, turn off the switch, and turn it on again.
Active Feedback sensing Technology
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.
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.5
17 ENGLISH