Selection Of Blades; Maintenance And Inspection - Hitachi CR 18DV Handling Instructions Manual

SELECTION OF BLADES

To ensure maximum operating efficiency and results, it
is very important to select the appropriate blade best
suited to the type and thickness of the material to be cut.
NOTE:
Dimensions of the workpiece mentioned in the table
represent the dimensions when the mounting position
of the base is set nearest to the body of the Cordless
Reciprocating Saw. Caution must be exercised since
dimensions of the workpiece will become smaller if
the base is mounted far away from the body of the
Cordless Reciprocating Saw.
1. Selection of HCS blades
The blade number of HCS blades in Table 4 is
engraved in the vicinity of the mounting position of
each blade. Select appropriate blades by referring to
Tables 4 and 6 below.
Table 4: HCS blades
Blade
Uses
No.
No. 1 For cutting steel pipe less than
100 mm in diameter
No. 2 For cutting steel pipe less than
30 mm in diameter
No. 3 For cutting steel pipe less than
30 mm in diameter
No. 4 For cutting and roughing lumber
No. 5 For cutting and roughing lumber
No. 8 For cutting vinyl chloride pipe less
than 100 mm in diameter
For cutting and roughing lumber
No. 9 For cutting mild steel pipe less
than 100 mm in diameter when
used with cut off guide
No. 95 For cutting stainless steel pipe
less than 100 mm in diameter
No. 96 For cutting stainless steel pipe
less than 30 mm in diameter
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 5 are described
on the packages of special accessories. Select
appropriate blades by referring to Table 5 and 6 below.
Table 5: Bl-METAL blades
Blade
Uses
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 100 mm in outer diameter
No. 103 For cutting steel and stainless pipes
less than 60 mm in outer diameter
Blade
No.
No. 104 For cutting steel and stainless pipes
less than 100 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 100 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 100 mm in outer diameter Below 3.5
No. 121 For cutting and roughing lumber
No. 131 For cutting and roughing lumber
No. 132 For cutting and roughing lumber
NOTE
Thickness
Nos. 101 – No. 132 Bl-METAL blades are sold separately
(mm)
as optional accessories.
3. Selection of blades for other materials
2.5 – 6
Table 6
2.5 – 6
Meterial
to be cut
Below 3.5
Iron plate
50 – 70
Below 30
2.5 – 15
Nonferrous Aluminium,
Below 100
metal
2.5 – 6
Below 2.5
Systhetic
resin
Below 2.5
Thickness
(mm)

MAINTENANCE AND INSPECTION

2.5 – 6
CAUTION
Be sure to turned off the switch and remove the
2.5 – 6
battery before maintenance and inspection.
1. Inspecting the blade
Continued use of a dull or damaged blade will result
2.5 – 6
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.
Uses
Material Thickness
quality (mm)
Mild steel 2.5 – 10
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
English
Thickness
(mm)
2.5 – 6
2.5 – 6
2.5 – 6
Below 3.5
100
100
100
Blade No.
No. 1, 2, 101,
102, 103, 104,
105, 106, 131
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
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