7
Indicating the remaining battery capacity (Fig. 3)
(Only for battery cartridges with “B” at the end of the
model number.)
Press the check button on the battery cartridge to indi-
cate the remaining battery capacity. The indicator lamps
light up for few seconds.
015658
NOTE:
• Depending on the conditions of use and the ambient
temperature, the indication may differ slightly from the
actual capacity.
Switch action (Fig. 4)
CAUTION:
• Before inserting the battery cartridge into the tool,
always check to see that the slide switch actuates prop-
erly and returns to the “OFF” position when the rear of
the slide switch is depressed.
• Switch can be locked in “ON” position for ease of oper-
ator comfort during extended use. Apply caution when
locking tool in “ON” position and maintain firm grasp on
tool.
To start the tool, slide the slide switch toward the “I (ON)”
position. For continuous operation, press the front of the
slide switch to lock it.
To stop the tool, press the rear of the slide switch, then
slide it toward the “O (OFF)” position.
Indication lamp with multi function (Fig. 5)
Indication lamps are located in two positions.
When the battery cartridge is inserted on the tool with the
slide switch positioned in the “O (OFF)” position, the indi-
cation lamp flickers quickly for approximately one sec-
ond. If it does not flicker so, the battery cartridge or
indication lamp has broken.
– Overload protection
– When the tool is overloaded, the indication lamp
lights up. When the load on the tool is reduced, the
lamp goes out.
– If the tool continues to be overloaded and the indica-
tion lamp continues to light up for approximately two
seconds, the tool stops. This prevents the motor and
its related parts from being damaged.
– In this case, to start the tool again, move the slide
switch to the “O (OFF)” position once and then to the
“I (ON)” position.
– Battery cartridge replacing signal
– When the remaining battery capacity gets small, the
indicator lamp lights up during operation earlier than
enough capacity battery use.
– Accidental re-start preventive function
– Even if the battery cartridge is inserted on the tool
with the slide switch in the “I (ON)” position, the tool
does not start. At this time, the lamp flickers slowly
and this shows that the accidental re-start preventive
function is at work.
– To start the tool, first slide the slide switch toward the
“O (OFF)” position and then slide it toward the
“I (ON)” position.
ASSEMBLY
CAUTION:
• Always be sure that the tool is switched off and the bat-
tery cartridge is removed before carrying out any work
on the tool.
Installing or removing wheel point (Fig. 6 & 7)
Loosen the collet nut and insert the wheel point into the
collet nut. Use one wrench to hold the spindle and the
other one to tighten the collet nut securely.
The wheel point should not be mounted more than
10 mm from the collet nut. Exceeding this distance could
cause vibration or a broken shaft.
To remove the wheel point, follow the installation proce-
dure in reverse.
CAUTION:
• Use the correct size collet cone for the wheel point
which you intend to use.
OPERATION (Fig. 8)
Turn the tool on without the wheel point making any con-
tact with the workpiece and wait until the wheel point
attains full speed. Then apply the wheel point to the
workpiece gently. To obtain a good finish, move the tool
in the leftward direction slowly.
CAUTION:
• Apply light pressure on the tool. Excessive pressure on
the tool will only cause a poor finish and overloading of
the motor.
MAINTENANCE
CAUTION:
• Always be sure that the tool is switched off and the bat-
tery cartridge is removed before attempting to perform
inspection or maintenance.
• Never use gasoline, benzine, thinner, alcohol or the
like. Discoloration, deformation or cracks may result.
Indicator lamps
Remaining
capacity
Lighted
Off
Blinking
75% to 100%
50% to 75%
25% to 50%
0% to 25%
Charge the
battery.
The battery may
have
malfunctioned.
