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19. NEVER use a depressed center wheel which is cracked
or deformed or worn away (see the MAINTENANCE
AND INSPECTION section on page 13).
20. NEVER use the grinder in places where the sparks
generated by the grinder can cause explosion, such
as where fl ammable materials or gases are present.
21. NEVER push in the push button while the spindle is
running.
22. ALWAYS wear eye protection that meets the
requirement of the latest revision of ANSI
Standard Z87.1.
23. ALWAYS wear a mask or respirator to protect
yourself from dust or potentially harmful particles
generated during the grinding operation.
24. ALWAYS fi rmly grip the body handle and side handle
while operating the grinder.
25. ALWAYS have a trial run before grinding commence.
(see "Test the grinder before using" on page 11).
26. ALWAYS follow the instructions contained in this
manual when replacing the depressed center wheel.
27. ALWAYS be careful with buried object such as an
underground wiring.
Touching these active wiring or electric cable with
this tool, you may receive an electric shock.
Confi rm if there are any buried object such as electric
cable within the wall, fl oor or ceiling where you are
going to operate here after.
MAKE THEM AVAILABLE TO OTHER USERS
SAVE THESE INSTRUCTIONS
AND
AND
OWNERS OF THIS TOOL!
28. Defi nitions for symbols used on this tool
V .................volts
...............Alternating current
Hz ...............hertz
A .................amperes
W ................watt
n .................rated speed
---/min .........revolutions per minute
ø.................wheel diameter
mm .............millimeter
" ..................inches
..............Class II Construction
DOUBLE INSULATION FOR SAFER
OPERATION
To ensure safer operation of this power tool, HITACHI has
adopted a double insulation design. "Double insulation"
means that two physically separated insulation systems
have been used to insulate the electrically conductive
materials connected to the power supply from the outer
frame handled by the operator. Therefore, either the symbol
"
" or the words "Double insulation" appear on the power
tool or on the nameplate.
Although this system has no external grounding, you must
still follow the normal electrical safety precautions given in
this Instruction Manual, including not using the power tool
in wet environments.
To keep the double insulation system effective, follow
these precautions:
Only HITACHI AUTHORIZED SERVICE CENTER
should disassemble or assemble this power tool, and
only genuine HITACHI replacement parts should be
installed.
Clean the exterior of the power tool only with a soft
cloth moistened with soapy water, and dry thoroughly.
Never use solvents, gasoline or thinners on plastic
components; otherwise the plastic may dissolve.
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