Maintenance And Inspection - Hitachi CR 13V Handling Instructions Manual

NOTE
No. 1 – No. 96 HCS blades are sold separately as
optional accessories.
2. Selection of BI-METAL blades
The BI-METAL blade numbers in Table 2 are
described on the packages of special accessories.
Select appropriate blades by referring to Table 2
and 3 below.
Table 2: Bl-METAL blades
Blade
No.
No. 101 For cutting steel and stainless pipes
less than 60 mm in outer diameter
No. 102 For cutting steel and stainless pipes
less than 130 mm in outer diameter
No. 103 For cutting steel and stainless pipes
less than 60 mm in outer diameter
No. 104 For cutting steel and stainless pipes
less than 130 mm in outer diameter
No. 105 For cutting steel and stainless pipes
less than 60 mm in outer diameter
No. 106 For cutting steel and stainless pipes
less than 130 mm in outer diameter
No. 107 For cutting steel and stainless pipes
less than 60 mm in outer diameter
No. 108 For cutting steel and stainless pipes
less than 130 mm in outer diameter Below 3.5
No. 121 For cutting and roughing lumber
No. 131 All purposes
No. 132 All purposes
NOTE
Nos. 101 – No. 132 Bl-METAL blades are sold separately
as optional accessories.
7
Thickness
Uses
Below 3.5
3. Selection of blades for other materials
Table 3
Material
to be cut
Iron plate
(mm)
Nonferrous Aluminium,
2.5 – 6
metal
2.5 – 6
2.5 – 6
Synthetic
resin
2.5 – 6
2.5 – 6
2.5 – 6
300
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MAINTENANCE AND INSPECTION

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1. Inspecting the blade
Continued use of a dull or damaged blade will
result in reduced cutting efficiency 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 figure 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.
Material Thickness
quality (mm)
Mild steel 2.5 – 19
plate
Below 3.5 No. 3, 107,
5 – 20
Copper and
Brass
Below 5
Phenol resin, 10 – 50
Melamine
resin, etc.
5 – 30
Vinyl chloride, 10 – 60
Acrylic resin,
etc.
5 – 30
Blade No.
No. 1, 2, 101,
102, 103, 104,
105, 106, 131,
132
108
No. 1, 2, 101,
102, 103, 104,
105, 106, 131,
132
No. 3, 107,
108
No. 1, 2, 4,
101, 102, 103,
104, 131, 132
No. 3, 5, 8,
105, 106, 107,
108
No. 1, 2, 4,
101, 102, 103,
104, 131, 132
No. 3, 5, 8,
105, 106, 107,
108