8
26.
Do not touch the workpiece or the offset diamond
wheel immediately after operation; it may be
extremely hot and could burn your skin.
27.
Check that the workpiece is properly supported.
28.
Pay attention that the wheel continues to rotate
after the tool is switched off.
29.
Do not use the tool on any materials containing
asbestos.
SAVE THESE INSTRUCTIONS.
WARNING:
DO NOT let comfort or familiarity with product (gained
from repeated use) replace strict adherence to safety
rules for the subject product. MISUSE or failure to
follow the safety rules stated in this instruction
manual may cause serious personal injury.
FUNCTIONAL DESCRIPTION
CAUTION
• Always be sure that the tool is switched off and
unplugged before adjusting or checking function on the
tool.
Ground Fault Circuit Interrupter (Fig. 1)
The tool is equipped with either of Ground Fault Circuit
Interrupter (GFCI) illustrated.
Connect the tool to a power supply and test the Ground
Fault Circuit Interrupter (GFCI) before using the tool. Push
the RESET (R) button and confirm that the pilot lamp
lights. Push the TEST (T) button and confirm that the pilot
lamp goes out. Push the RESET (R) button again to use
the tool.
WARNING:
• Do not use the tool if the pilot lamp does not go out
when the TEST (T) button is pushed.
Shaft lock (Fig. 2)
CAUTION
• Never actuate the shaft lock when the spindle is
moving. The tool may be damaged.
Press the shaft lock to prevent spindle rotation when
installing or removing accessories.
Switch action (Fig. 3)
CAUTION
• Before plugging in the tool, always check to see that
the switch lever actuates properly and returns to the
“OFF” position when the rear of the switch lever is
depressed.
To start the tool, slide the switch lever toward the “I (ON)”
position. For continuous operation, press the front of the
switch lever to lock it.
To stop the tool, press the rear of the switch lever, then
slide it toward the “O (OFF)” position.
Speed adjusting dial (Fig. 4)
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 table for the relationship between the number
settings on the dial and the approximate rotating speed.
010961
CAUTION
• If the tool is operated continuously at low speeds, the
motor will get overloaded and heated up.
• 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.
Electronic function
Constant speed control
Possible to get fine finish, because the rotating speed is
kept constant even under the loaded condition.
Additionally, when the load on the tool exceeds
admissible levels, power to the motor is reduced to protect
the motor from overheating. When the load returns to
admissible levels, the tool will operate as normal.
Soft start feature
Soft start because of suppressed starting shock.
Opening or closing of water lever (Fig. 5)
To keep the lever on the tool for water flow open, turn it to
the position A where the water passage will be ready.
Return it to the position B to close.
ASSEMBLY
CAUTION
• Always be sure that the tool is switched off and
unplugged before carrying out any work on the tool.
Installing side grip (handle) (Fig. 6)
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. 7)
Remove one of the screws which secure gear housing
and head cover, then screw the side grip on the tool.
Installing or removing dust cover for
abrasive disc (Fig. 8)
When using an abrasive disc, use the 125 mm dust cover
together.
To install the dust cover, insert the dust cover band A
through between the tool body and the tube, and then fit it
onto the tool. The notch of the dust cover band positions
just below the joint.
Number
RPM (min
-1
)
1
2,000
2
3,000
3
4,500
4
6,000
5
6,800
