Maintenance And Inspection - Hitachi Koki CR 18DMR Instrucciones De Manejo

Table 3: 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 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
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
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
Nos. 101 – No. 132 Bl-METAL blades are sold
separately as optional accessories.
3. Selection of blades for other materials
Thickness
Table 5
(mm)
Material
to be cut
2.5 – 6
Iron plate
2.5 – 6
Below 3.5
50 – 70
Nonferrous Aluminium,
metal
Below 30
2.5 – 15
Below 100
Systhetic
2.5 – 6
resin
Below 2.5
Below 2.5

MAINTENANCE AND INSPECTION

CAUTION
Be sure to turned off the switch and remove the
Thickness
battery before maintenance and inspection.
(mm)
1. Inspecting the blade
Continued use of a dull or damaged blade will
2.5 – 6
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.
2.5 – 6
2. Inspecting the mounting screws
Regularly inspect all mounting screws and ensure
2.5 – 6
that they are properly tightened. Should any of the
screws be loose, retighten them immediately. Failure
2.5 – 6
to do so could result in serious hazard.
3. Maintenance of the motor
The motor unit winding is the very "heart" of the
2.5 – 6
power tool. Exercise due care to ensure the winding
does not become damaged and/or wet with oil or
2.5 – 6
water.
4. Inspecting the carbon brushes (Fig. 31)
The motor employs carbon brushes which are
Below 3.5
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
100
keep carbon brushes clean and ensure that they
100
slide freely within the brush holders.
NOTE
100
When replacing the carbon brush with a new one,
be sure to use the Hitachi Carbon Brush Code No.
999058.
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
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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