Maintenance And Inspection - Hitachi G 13YC2 Instrucciones De Manejo

English
MOUNTING AND OPERATION
Action
Fitting and adjusting the wheel
guard
Fixing the side handle
Assembling depressed center
wheel, diamond wheel, radial
grinding wheel and sanding disc
Assembling cutting wheel
Switch operation*
Grinding angle and grinding
method
Replacing carbon brushes
Selecting accessories
* Electronic Control
The grinder has an electronic speed control which
provides:
○ full speed at all times in the range up to rated load.
○ soft-start.
○ 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.).
○ 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.
○ 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 fl uctuate slightly due to
the conditions of use and working voltage.

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 (Fig. 8)
The motor employs carbon brushes which are
consumable parts. Since an excessively worn carbon
brush can result in motor trouble, replace the carbon
brushes with new ones having the same carbon brush
No. ⓐ shown in the fi gure when it becomes worn to or
near the "wear limit" ⓑ. In addition, always keep carbon
brushes clean and ensue that they slide freely within the
brush holders.
4. Replacing carbon brushes (Fig. 8)
〈Disassembly〉
(1) Loosen the D4 tapping screw retaining the tail cover and
remove the tail cover.
(2) Use the auxiliary hexagonal wrench or small screwdriver
to pull up the edge of the spring ⓒ that is holding down
the carbon brush. Remove the edge of the spring toward
the outside of the brush holder ⓓ.
0000Book̲G13YC2.indb 6 0000Book̲G13YC2.indb 6
(3) Remove the end of the pig-tail ⓔ on the carbon brush
ⓕ from the terminal section of brush holder and then
remove the carbon brush from the brush holder.
Figure Page
〈Assembly〉
(1) Insert the end of the pig-tail of the carbon brush in the
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terminal section of brush holder.
(2) Insert the carbon brush in the brush holder.
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(3) Use the auxiliary hexagonal wrench or small screwdriver to
return the edge of the spring to the head of the carbon brush.
(4) Mount the tail cover and tighten the D4 tapping screw.
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5. Replacing supply cord
If the replacement of the supply cord is necessary, it has
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to be done by Hitachi Authorized Service Center to avoid
a safety hazard.
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6. Maintenance of the motor
7 71 The motor unit winding is the very "heart" of the power
tool. Exercise due care to ensure the winding does not
8 71
become damaged and/or wet with oil or water.
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CAUTION
In the operation and maintenance of power tools, the
safety regulations and standards prescribed in each
country must be observed.
GUARANTEE
We guarantee Hitachi Power Tools in accordance with
statutory/country specifi c regulation. This guarantee does
not cover defects or damage due to misuse, abuse, or
normal wear and tear. In case of complaint, please send
the Power Tool, undismantled, with the GUARANTEE
CERTIFICATE found at the end of this Handling instruction,
to a Hitachi Authorized Service Center.
IMPORTANT
Correct connection of the plug
The wires of the main lead are coloured in accordance
with the following code:
Blue: — Neutral
Brown: — Live
As the colours of the wires in the main lead of this tool may
not correspond with the coloured markings identifying the
terminals in your plug proceed as follows:
The wire coloured blue must be connected to the terminal
marked with the letter N or coloured black. The wire
coloured brown must be connected to the terminal marked
with the letter L or coloured red. Neither core must be
connected to the earth terminal.
NOTE:
This requirement is provided according to BRITISH
STANDARD 2769: 1984.
Therefore, the letter code and colour code may not be
applicable to other markets except The United Kingdom.
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