Additional Safety Warnings Specific For Abrasive Cutting-Off Operations - Hitachi Koki G18MR Instrucciones De Manejo

English
b) The grinding surface of centre depressed wheels
must be mounted below the plane of the guard lip.
An improperly mounted wheel that projects through the
plane of the guard lip cannot be adequately protected.
c) The guard must be securely attached to the power
tool and positioned for maximum safety, so the
least amount of wheel is exposed towards the
operator.
The guard helps to protect the operator from broken
wheel fragments, accidental contact with wheel and
sparks that could ignite clothing.
d) Wheels must be used only for recommended
applications. For example: do not grind with the
side of cut-off wheel.
Abrasive cut-off wheels are intended for peripheral
grinding, side forces applied to these wheels may
cause them to shatter.
e) Always use undamaged wheel fl anges that are of
correct size and shape for your selected wheel.
Proper wheel fl anges support the wheel thus reducing
the possibility of wheel breakage. Flanges for cut-off
wheels may be diff erent from grinding wheel fl anges.
f) Do not use worn down wheels from larger power
tools.
Wheel intended for larger power tool is not suitable for
the higher speed of a smaller tool and may burst.
ADDITIONAL SAFETY WARNINGS SPECIFIC
FOR ABRASIVE CUTTING-OFF OPERATIONS
a) Do not "jam" the cut-off wheel or apply excessive
pressure. Do not attempt to make an excessive
depth of cut.
Overstressing the wheel increases the loading and
susceptibility to twisting or binding of the wheel in the
cut and the possibility of kickback or wheel breakage.
b) Do not position your body in line with and behind
the rotating wheel.
When the wheel, at the point of operation, is moving
away from your body, the possible kickback may propel
the spinning wheel and the power tool directly at you.
SPECIFICATIONS
Model
Voltage (by areas)
*1
Input
*1
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
6
c) When wheel is binding or when interrupting a cut
for any reason, switch off the power tool and hold
the power tool motionless until the wheel comes to
a complete stop. Never attempt to remove the cut-
off wheel from the cut while the wheel is in motion
otherwise kickback may occur.
Investigate and take corrective action to eliminate the
cause of wheel binding.
d) Do not restart the cutting operation in the
workpiece. Let the wheel reach full speed and
carefully reenter the cut.
The wheel may bind, walk up or kickback if the power
tool is restarted in the workpiece.
e) Support panels or any oversized workpiece to
minimize the risk of wheel pinching and kickback.
Large workpieces tend to sag under their own weight.
Supports must be placed under the workpiece near the
line of cut and near the edge of the workpiece on both
sides of the wheel.
f) Use extra caution when making a "pocket cut" into
existing walls or other blind areas.
The protruding wheel may cut gas or water pipes,
electrical wiring or objects that can cause kickback.
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 fi ts the spindle.
4. Abrasive wheels shall be stored and handled with care
in accordance with manufacturer's instructions.
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 fi rmly. 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 .
G18MR
(110 V, 220 V, 230 V, 240 V)
2400 W
8500 min
-1
180 mm
22.23 mm
80 m/s
5.4 kg
G23MR
6600 min
-1
230 mm