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Hitachi cr 18 dl Manual

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14
Table 3: HCS blades
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 4 are
described on the packages of special accessories.
Select appropriate blades by referring to Table 4
and 5 below.
Table 4: Bl-METAL blades
Blade Thickness
No.
Uses
(mm)
No. 1 For cutting steel pipe less than
100 mm in diameter
2.5 – 6
No. 2 For cutting steel pipe less than
30 mm in diameter
2.5 – 6
No. 3 For cutting steel pipe less than
30 mm in diameter
Below 3.5
No. 4 For cutting and roughing lumber 50 – 70
No. 5 For cutting and roughing lumber Below 30
No. 8 For cutting vinyl chloride pipe less
than 100 mm in diameter
2.5 – 15
For cutting and roughing lumber Below 100
No. 9 For cutting mild steel pipe less
than 100 mm in diameter when 2.5 – 6
used with cut off guide
No. 95 For cutting stainless steel pipe
less than 100 mm in diameter
Below 2.5
No. 96 For cutting stainless steel pipe
less than 30 mm in diameter
Below 2.5
Blade Thickness
No.
Uses
(mm)
No. 101
For cutting steel and stainless pipes
less than 60 mm in outer diameter
2.5 – 6
No. 102
For cutting steel and stainless pipes
less than 100 mm in outer diameter
2.5 – 6
No. 103
For cutting steel and stainless pipes
less than 60 mm in outer diameter
2.5 – 6
No. 104
For cutting steel and stainless pipes
less than 100 mm in outer diameter
2.5 – 6
No. 105
For cutting steel and stainless pipes
less than 60 mm in outer diameter
2.5 – 6
No. 106
For cutting steel and stainless pipes
less than 100 mm in outer diameter
2.5 – 6
No. 107
For cutting steel and stainless pipes
less than 60 mm in outer diameter
Below 3.5
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 100
No. 131
For cutting and roughing lumber 100
No. 132
For cutting and roughing lumber 100
NOTE
Nos. 101 – No. 132 Bl-METAL blades are sold
separately as optional accessories.
Material Material Thickness
Blade No.
to be cut quality (mm)
Iron plate Mild steel 2.5 – 10 No. 1, 2, 101,
plate 102, 103, 104,
105, 106, 131
Below 3.5 No. 3, 107,
108
Nonferrous Aluminium, 5 – 20 No. 1, 2, 101,
metal Copper and 102, 103, 104,
Brass 105, 106, 131,
132
Below 5 No. 3, 107,
108
Systhetic Phenol resin, 10 – 50 No. 1, 2, 4,
resin Melamine 101, 102, 103,
resin, etc. 104, 131, 132
5 – 30 No. 3, 5, 8,
105, 106, 107,
108
Vinyl chloride,
10 – 60 No. 1, 2, 4,
Acrylic resin, 101, 102, 103,
etc. 104, 131, 132
5 – 30 No. 3, 5, 8,
105, 106, 107,
108
3. Selection of blades for other materials
Table 5
MAINTENANCE AND INSPECTION
CAUTION
Be sure to turned off the switch and remove the
battery before maintenance and inspection.
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. 31)
The motor employs carbon brushes which are
consumable parts. Since and excessively worn
carbon brush can result in motor trouble, replace
the carbon brush with new ones 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.
NOTE
When replacing the carbon brush with a new one,
be sure to use the Hitachi Carbon Brush Code No.
999058.
01Eng_CR18DMR_DL_WE 08/10/31, 16:4914
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