Текст страницы
Accidental re-start preventive
function
The rotating speed can be changed by turning the
speed adjusting dial to a given number setting from 1 to
5. Higher speed is obtained when the dial is turned in
the direction of number 5. And lower speed is obtained
when it is turned in the direction of number 1. Refer to
the below table for the relationship between the number
settings on the dial and the approximate rotating speed.
When plugging in the tool while the switch is ON, the
tool does not start.
At this time, the indication lamp blinks in red and shows
that the accidental re-start preventive function works.
To start the tool, turn off the switch, and turn it on again.
Number
Rated speed
1
2,800 min
-1 (/min)
Constant speed control
2
4,500 min
-1 (/min)
3
6,500 min
-1 (/min)
Possible to get fine finish, because the rotating speed is
kept constant even under the loaded condition.
4
8,000 min
-1 (/min)
Soft start feature
5
11,500 min
-1 (/min)
Soft start feature reduces starting reaction.
► Fig.2: 1. Speed adjusting dial
Mechanical brake
Shaft lock
Only for model GA4591 / GA5091
WARNING: Never actuate the shaft lock when
the spindle is moving. It may cause serious injury or
the tool damage.
Mechanical brake is activated after the tool is switched
off.
The brake does not work when the power supply is shut
down with the switch still on.
Press the shaft lock to prevent spindle rotation when
installing or removing accessories.
► Fig.3: 1. Shaft lock
ASSEMBLY
Switch action
CAUTION: Always be sure that the tool is
switched off and unplugged before carrying out
any work on the tool.
CAUTION: Before plugging in the tool, always
check to see that the slide switch actuates prop-
erly and returns to the "OFF" position when the
rear end of the slide switch is depressed.
Installing side grip (handle)
CAUTION: Always be sure that the side grip is
installed securely before operation.
CAUTION: Switch can be locked in the "ON"
position for ease of operator comfort during
extended use. Apply caution when locking tool in
the "ON" position and maintain firm grasp on tool.
Screw the side grip securely on the position of the tool
as shown in the figure.
► Fig.6
To start the tool, press down the rear end of the slide
switch and then slide it toward the “I (ON)” position.
For continuous operation, press down the front end of
the slide switch to lock it.
► Fig.4: 1. Slide switch
Installing or removing wheel guard
To stop the tool, press down the rear end of the slide
switch so that it returns to the “O (OFF)” position.
► Fig.5: 1. Slide switch
Electronic function
WARNING: When using a depressed center
wheel, flap disc, flex wheel or wire wheel brush,
the wheel guard must be fitted on the tool so that
the closed side of the guard always points toward
the operator.
Active Feedback sensing Technology
WARNING: Make sure that the wheel guard is
securely locked by the lock lever with one of the
holes on the wheel guard.
CAUTION: Hold the tool firmly until the rota-
tion stops.
WARNING: When using an abrasive cut-off
/ diamond wheel, be sure to use only the special
wheel guard designed for use with cut-off wheels.
The tool electronically detects situations where the wheel or
accessory may be at risk to be bound. In such situation, the
tool automatically shuts off the power to prevent further rota-
tion of the spindle (this does not prevent kickback).
At this time, the indication lamp blinks in red and shows
the Active Feedback sensing Technology is working.
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.
15
ENGLISH