Precautions On Using Disc Grinder; Specifications; Standard Accessories; Prior To Operation - Hitachi G 18SH2 Handling Instructions Manual

PRECAUTIONS ON USING DISC GRINDER

1. Never operate these power tools without Wheel
Guards.
2. Check that speed marked on the wheel is equal to
or greater than the rated speed of the grinder.
Use only depressed center wheels rated at 80 m/s
or more.
3. Ensure that the wheel dimensions are compatible
with the grinder and that the wheel fits the spindle.
4. Abrasive wheels shall be stored and handled with
care in accordance with manufacturer's instructions.

SPECIFICATIONS

Model
Voltage (by areas)* 1
1
Input*
No-load speed
Outer dia.
Wheel Inner dia.
Peripheral speed
Weight* 2
*1 Be sure to check the nameplate on product as it is subject to change by areas.
*2 Weight: Only main body

STANDARD ACCESSORIES

(1) Wrench ........................................................................ 1
(2) Side handle ................................................................ 1
Depressed center wheels are not provided as standard
accessories.
Standard accessories are subject to change without
notice.
APPLICATIONS
Removal of casting fin and finishing of various types
of steel, bronze and aluminum materials and castings.
Grinding of welded sections or sections cut by
means of a cutting torch.
Grinding of synthetic resins, slate, brick, marble, etc.
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.
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
8
5. Inspect the depressed center wheel before use, do
not use chipped, cracked or otherwise defective
products.
6. Always hold the body handle and side handle of
the power tool firmly. Otherwise the counterforce
produced may result in inaccurate and even
dangerous operation.
7. Do not use cutting-off wheels for side grinding.
8. Do not use of separate reducing bushings or adapters
to adapt large hole abrasive wheels.
9. The wheel continues to rotate after the tool is
switched off.
G18SH2 G18SR
•
(110V, 220V, 230V, 240V)
8500/min
180 mm
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. By slightly loosening the setting screw,
the wheel guard can be turned and set at any
d e s i r e d a n g l e f o r m a x i m u m o p e r a t i o n a l
effectiveness. Ensure that the setting screw is
thoroughly tightened after adjusting the wheel guard.
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 "Depressed Center
Wheel Assembly"
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.
G23SF2
2000 W
6600/min
230 mm
22 mm
80 m/s
4.3 kg
G23SR
•