Precautions On Using Disc Grinder; Specifications; Standard Accessories; Prior To Operation - Hitachi G 18U2 Handling Instructions Manual

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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
instructions.

SPECIFICATIONS

Model
Voltage (by areas)* 1
Input* 1
No-load speed
Outer dia.
Wheel Inner dia.
Peripheral speed
2
Weight*
Starting current limiter*
*1 Be sure to check the nameplate on product as it is subject to change by areas.
*2 Weight: Only main body
*3 The starting current limiter produces the starting current to such an extent that a fuse (16 A, slow-blow)
is not tripped.

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.
6
with manufacturer's
G18SH2 G18SR
•
8500 min
180 mm
3
No
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.
G18U2 G18SRU G23SF2
•
(110 V, 220 V, 230 V, 240 V)
2000 W
-1
(/min)
22 mm
80 m/s
4.3 kg
Yes
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.
[In case of the wheel guard shown in Fig. 1]
By slightly loosening the setting screw, the wheel
guard can be turned and set at any desired angle
for maximum operational effectiveness. Ensure that
the setting screw is thoroughly tightened after
adjusting the wheel guard.
[In case of the wheel guard shown in Fig. 2]
Open the lever and insert the locating pin of wheel
guard, bringing it into line with the across flats of
packing ground.
Then, turn the wheel guard to a desired position
(for use).
Close the lever and fix it. If and when required,
carry out adjustments by tightening or loosening
the screw.
If the lever does not move smoothly, apply some
lubricating oil to the sliding section between the set
piece and the lever.
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.
G23SR G23U2 G23SRU
• •
-1
6600 min (/min)
230 mm
No Yes