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Hitachi G23UC Manual

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English
SPECIFICATIONS
*1 Be sure to check the nameplate on product as it is subject to change by areas.
*2 Weight: According to EPTA-Procedure 01/2003
Electronic Control
The grinder has an electronic control which provides:
⅜ soft-start.
⅜ 0 Voltage Re-start Protection
The 0 voltage restart protection feature prevents the
power tool from restarting after the power has been
temporarily cut off during operation.
STANDARD ACCESSORIES
(1) Wrench ........................................................................ 1
(2) Side handle ................................................................ 1
(3) Hexagonal bar wrench ............................................. 1
Depressed center wheels are not provided as standard
accessories.
Standard accessories are subject to change without
notice.
APPLICATIONS
⅜
Removal of casting fin and finishing of various types
of steel, bronze and aluminum materials and castings.
⅜ Grinding of welded sections or sections cut by
means of a cutting torch.
⅜ Grinding of synthetic resins, slate, brick, marble, etc.
⅜ Cutting of synthetic concrete, stone, brick, marble
and similar materials.
PRIOR TO OPERATION
1. Power source
Ensure that the power source to be utilized conforms
to the power requirements specified on the product
nameplate.
CAUTION
Do not operate from a direct current power source,
engine generator, booster or any other type of
transformer. Doing so may not only cause damage
to the grinder, but may lead to accidents.
2. Power switch
Ensure that the power switch is in the OFF position.
If the plug is connected to a receptacle while the
power switch is in the ON position, the power tool
will start operating immediately, which could cause
a serious accident.
3. Extension cord
When the work area is removed from the power
source, use an extension cord of sufficient thickness
and rated capacity. The extension cord should be
kept as short as practicable.
4. Fitting and adjusting the wheel guard
The wheel guard is a protective device to prevent
injury should the depressed center wheel shatter
during operation. Ensure that the guard is properly
fitted and fastened before commencing grinding
operation.
[Installing and adjusting the wheel guard] (Fig. 2)
⅜ Open the lever and insert the locating pin of wheel
guard, bringing it into line with the across flats of
packing ground.
⅜ Then, turn the wheel guard to a desired position
(for use).
⅜ Close the lever and fix it. If and when required, carry
out adjustments by tightening or loosening the screw.
⅜ If the lever does not move smoothly, apply some
lubricating oil to the sliding section between the set
piece and the lever.
⅜ Fasten the wheel guard at the position where the
across flats of the wheel guard positioning pin and
packing ground are aligned (the position where the
wheel guard is inserted), but do not use it.
5. Ensure that the depressed center wheel to be utilized
is the correct type and free of cracks or surface
defects. Also ensure that the depressed center wheel
is properly mounted and the wheel nut is securely
tightened, refer to the section on “ASSEMBLING AND
DISASSEMBLING THE DEPRESSED CENTER WHEEL”.
6. Conducting a trial run
Ensure that the abrasive products is correctly
mounted and tightened before use and run the tool
at no-load for 30 seconds in a safe position, stop
immediately if there is considerable vibration or if
other defects are detected.
If this condition occurs, check the machine to
determine the cause.
7. Confirm the spindle lock mechanism
Confirm that the spindle lock is disengaged by
pushing push button two or three times before
switching the power tool on (See Fig. 1).
8. Fixing the side handle
Screw the side handle into the gear cover.
Model G18UC G23UC
Voltage (by areas)*
1
(230 V, 240V)
Input*
1
2500 W
Rated Speed 8500 min
-1
6600 min
-1
Outer dia. 180 mm 230 mm
Wheel
Hole dia. 22.23 mm
Thickness 6 mm
Peripheral speed 80 m/s
Weight*
2
6.2 kg 6.4 kg
01Eng_G18UC_WE 12/20/12, 9:019
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