MAINTENANCE AND INSPECTION
1. Inspecting the blade
Using a worn or chipped blade will put an excessive
burden on the motor and affect work performance.
Therefore, always use a well-cutting blade.
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. Maintenance of the motor
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
4. Inspecting the carbon brushes (Fig. 6)
The motor employs carbon brushes which are
consumable parts. Since an excessively worn carbon
brush can result in motor trouble, replace the carbon
brush with a new one having the same carbon
brush No. shown in the figure when it becomes
worn to or near the "wear limit". In addition, always
keep carbon brushes clean and ensure that they
slide freely within the brush holders.
5. Replacing carbon brushes
Disassemble the brush cap with a screwdriver. The
carbon brush can then be easily removed.
6. Service parts list
A: Item No.
B: Code No.
C: No. Used
Repair, modification and inspection of Hitachi Power
Tools must be carried out by an Hitachi Authorized
This Parts List will be helpful if presented with the
tool to the Hitachi Authorized Service Center when
requesting repair or other maintenance.
In the operation and maintenance of power tools,
the safety regulations and standards prescribed in
each country must be observed.
Hitachi Power Tools are constantly being improved
and modified to incorporate the latest technological
Accordingly, some parts (i.e. code numbers and/or
design) may be changed without prior notice.
We guarantee Hitachi Power Tools in accordance with
statutory/country specific 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.
Due to HITACHI's continuing program of research and
development, the specifications herein are subject to
change without prior notice.
Correct connection of the plug
The wires of the main lead are coloured in accordance
with the following code:
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
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
Information concerning airborne noise and vibration
The measured values were determined according to
EN60745 and declared in accordance with ISO 4871.
Measured A-weighted sound power level: 90 dB (A).
Measured A-weighted sound pressure level: 79 dB (A).
Uncertainty KpA: 3 dB (A).
Wear hearing protection.
Vibration total values (triax vector sum) determined
according to EN60745.
Cutting metal sheet:
Vibration emission value
Uncertainty K = 2.3 m/s
The vibration emission value during actual use of
the power tool can differ from the declared value
depending on the ways in which the tool is used.
To identify the safety measures to protect the
operator that are based on an estimation of exposure
in the actual conditions of use (taking account of
all parts of the operating cycle such as the times
when the tool is switched off and when it is running
idle in addition to the trigger time).
h = 7.2 m/s