Standard Accessories; Specifications; Maintenance And Inspection - Hitachi G 13SR4 Handling Instructions Manual

7. The wheel continues to rotate after the tool is switched off .
After switching off the machine, do not put it down until the
depressed center wheel has come to a complete stop. Apart
from avoiding serious accidents, this precaution will reduce
the amount of dust and swarf sucked into the machine.
8. When the machine is not use, the power source should
be disconnected.
9. Be sure to switch OFF and disconnect the attachment plug
from the receptacle to avoid a serious accident before the
depressed center wheel is assembling and disassembling.
10. RCD
The use of a residual current device with a rated residual
current of 30 mA or less at all times is recommended.
SYMBOLS
WARNING
The following show symbols used for the machine. Be
sure that you understand their meaning before use.
G10SR4 / G12SR4 / G13SR4:
Disc Grinder
Read all safety warnings and all instructions.
Always wear eye protection.
V Rated voltage
Alternating current
P Power input
n
Rated speed
/min Revolution or reciprocations per minute
D Wheel outer diameter
d Wheel hole diameter
t Wheel thickness
Peripheral speed
Weight (Only main body)
kg
Switching ON
Switching OFF
Disconnect mains plug from electrical outlet
Warning
Class II tool

STANDARD ACCESSORIES

In addition to the main unit (1 unit), the package
contains the accessories listed in the below.
(1) Wrench .........................................................................1
(2) Side handle ...................................................................1
Standard accessories are subject to change without notice.
APPLICATIONS
○ Removal of casting fi n and fi nishing of various types of
steel, bronze and aluminum materials and castings.
○ Grinding of welded sections or sections cut by means of
a cutting torch.
○ Cutting of synthetic concrete, stone, brick, marble and
similar materials.

SPECIFICATIONS

The specifi cations of this machine are listed in the Table on
page 36.
NOTE
Due to HITACHI's continuing program of research and
development, the specifi cations herein are subject to
change without prior notice.
MOUNTING AND OPERATION
Action
Fitting and adjusting the wheel guard
Fixing the side handle
Assembling depressed center wheel
Assembling cutting wheel
Assembling diamond wheel
Switch operation
Grinding angle and grinding method
Selecting accessories

MAINTENANCE AND INSPECTION

1. Inspecting the depressed center wheel
Ensure that the depressed center wheel is free of cracks
and surface defects.
2. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure that
they are properly tightened. Should any of the screws be
loose, retighten them immediately. Failure to do so could
result in serious hazard.
3. Inspecting the carbon brushes
For your continued safety and electrical shock
protection, carbon brush inspection and replacement
on this tool should ONLY be performed by a HITACHI
AUTHORIZED SERVICE CENTER.
4. Replacing supply cord
If the replacement of the supply cord is necessary, it has
to be done by Hitachi Authorized Service Center to avoid
a safety hazard.
5. Maintenance of the motor
WARNING
Always wear protective goggles and dust respirators
when blowing air from the tail cover air hole with the use
of an air gun, etc.
Failure to observe this may result in ejected dust
being inhaled or entering your eyes.
The motor unit winding is the very "heart" of the power tool.
Exercise due care to ensure the winding does not become
damaged and/or wet with oil or water.
NOTE
When work has been fi nished, blow air containing no
moisture from the tail cover air hole with the use of an
air gun, etc., while running the motor without any load
applied. This is eff ective in removing any dirt and dust
that has accumulated. Dirt and dust collecting inside the
motor may result in malfunctions.
5
English
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