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Hitachi G13VAC Seite 8

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English
SPECIFICATIONS
*Be sure to check the nameplate on product as it is subject to change by areas.
Electronic Control
The grinder has an electronic speed control which
provides:
⅜ full speed at all times in the range up to rated load.
⅜ soft-start.
⅜ variable speed (G12VA, G13VA, G15VA)
⅜ Kickback Protection
The kickback protection feature cuts off the power
to the motor and stops the power tool in the event
of a sudden drop in the rotational speed of the
wheel during operation (for example, if the wheel
locks during cutting operation, etc.).
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.
⅜ Overload Protection
The overload protection feature shuts off the power
to the motor in the event of overloading of the
motor or a conspicuous reduction in rotational speed
during operation.
NOTE:
The grinder is equipped with a rotational speed
control circuit. The rotational speed may fluctuate
slightly due to the conditions of use and working
voltage.
STANDARD ACCESSORIES
(1) Depressed center wheel .......................................... 1
(2) Wrench ........................................................................ 1
(3) Side handle ................................................................ 1
(4) Hex. bar wrench ....................................................... 1
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.
NOTE:
When connected to the power supply, the built-in
electronic control circuit shifts to standby status and
the grinder becomes slightly warm, but this is not
a malfunction.
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.
When the kickback protection, 0 voltage re-start
protection or overload protection feature has been
activated, return the power switch to the OFF position
and wait for 1 second or more before re-starting
the power tool.
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 be
shattered during operation. Ensure that the wheel
guard is properly fitted and fastened before
commencing grinding operation.
[How to attach and adjust the wheel guard](Fig. 2)
⅜ Set the wheel ass’y to the packing gland.
⅜ Tighten M5 screw to secure the wheel guard while
the lever is in closed position.
⅜ Perform the adjustment of the wheel guard while
the lever is released. (Loosen M5 screw and readjust
if the wheel guard does not rotate smoothly.)
Model G12VA G13VA G15VA G13YF G15YF
Voltage (by areas)* (110V, 230V)
Power Input* 1500 W
No-load speed* 2800–10500 min
-1
2300–9000 min
-1
10500 min
-1
9000 min
-1
Wheel
outer dia. × hole dia.
115 × 22.23 mm 125 × 22.23 mm 150 × 22.23 mm 125 × 22.23 mm 150 × 22.23 mm
peripheral speed 80 m/s
Weight (only main body) 2.0 kg
– Ensure that ventilation openings are kept clear when
working in dusty conditions, if it should become
necessary to clear dust, first disconnect the tool
from the mains supply (use non metallic objects)
and avoid damaging internal parts;
– Always use eye and ear protection. Other personal
protective equipment such as dust mask, gloves,
helmet and apron should be worn;
– Pay attention to the wheel that continues to rotate
after the tool is switched off.
01Eng_G12VA_WE 4/20/10, 17:357
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