Maintenance And Inspection - Hitachi CR13V2 Handling Instructions Manual

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3. Selection of blades for other materials
Table 4
Material to Material
be cut quality
Iron plate Mild steel
plate
Nonferrous Aluminium,
metal Copper and
Brass
Synthetic Phenol resin,
resin Melamine
resin, etc.
Vinyl chloride,
Acrylic resin,
etc.

MAINTENANCE AND INSPECTION

1. Inspecting the blade
Continued use of a dull or damaged blade will result in
reduced cutting effi ciency and may cause overloading
of the motor. Replace the blade with a new one as soon
as excessive abrasion is noted.
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 water.
4. Inspecting the carbon brushes (Fig. 27)
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.
5. Replacing carbon brushes
Disassemble the brush caps with a slotted-head
screwdriver. The carbon brushes can then be easily
removed.
6. Service parts list
A: Item No.
B: Code No.
C: No. Used
D: Remarks
10
Thickness
Blade No.
(mm)
No. 1, 2, 101,
102, 103, 104,
2.5 – 19
105, 106, 131,
132
Below 3.5 No. 3, 107, 108
No. 1, 2, 101,
102, 103, 104,
5 – 20
105, 106, 131,
132
Below 5 No. 3, 107, 108
No. 1, 2, 4,
10 – 50 101, 102, 103,
104, 131, 132
No. 3, 5, 8,
5 – 30 105, 106, 107,
108
No. 1, 2, 4,
10 – 60 101, 102, 103,
104, 131, 132
No. 3, 5, 8,
5 – 30 105, 106, 107,
108
CAUTION
Repair, modifi cation and inspection of Hitachi Power
Tools must be carried out by an Authorized Service
Center.
This Parts List will be helpful if presented with the power
tool to the 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.
MODIFICATIONS
Hitachi Power Tools are constantly being improved
and modifi ed to incorporate the latest technological
advancements.
Accordingly, some parts (i.e. code numbers and/or
design) may be changed without prior notice.
NOTE
Due to HITACHI's continuing program of research and
development, the specifi cations herein are subject to
change without prior notice.