Maintenance And Inspection - Hitachi CR14DSL Handling Instructions Manual

Table 5: HCS blades
Blade
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 6 are described
on the packages of special accessories. Select
appropriate blades by referring to Table 6 and 7 below.
Table 6: 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 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
No. 121 For cutting and roughing lumber
No. 131 For cutting and roughing lumber
No. 132 For cutting and roughing lumber
NOTE:
No. 101 – No. 132 BI-METAL blades are sold separately
as optional accessories.
Thickness
Uses
(mm)
2.5 – 6
2.5 – 6
Below 3.5
50 – 70
Below 30
2.5 – 15
Below 100
2.5 – 6
Below 2.5
Below 2.5
Thickness
Uses
(mm)
2.5 – 6
2.5 – 6
2.5 – 6
2.5 – 6
2.5 – 6
2.5 – 6
Below 3.5
Below 3.5
100
100
100
3. Selection of blades for other materials
Table 7
Material to Material
be cut quality
Iron plate Mild steel
plate
Nonferrous Aluminium,
metal Copper and
Brass
Systhetic Phenol resin,
resin Melamine
resin, etc.
Vinyl chloride,
Acrylic resin,
etc.

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 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. 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.
5. Replacing carbon brushes
Take out the carbon brush by fi rst removing the brush
cap and then hooking the protrusion of the carbon brush
with a fl at head screw driver, etc., as shown in Fig. 33.
When installing the carbon brush, choose the direction
so that the nail of the carbon brush agrees with the
contact portion outside the brush tube. Then push it in
with a fi nger as illustrated in Fig. 34. Lastly, install the
brush cap.
English
Thickness
Blade No.
(mm)
2.5 – 10 No. 1, 2, 101,
102, 103, 104,
105, 106, 131
Below 3.5 No. 3, 107, 108
5 – 20 No. 1, 2, 101,
102, 103, 104,
105, 106, 131,
132
Below 5 No. 3, 107, 108
10 – 50 No. 1, 2, 4, 101,
102, 103, 104,
131, 132
5 – 30 No. 3, 5, 8, 105,
106, 107, 108
10 – 60 No. 1, 2, 4, 101,
102, 103, 104,
131, 132
5 – 30 No. 3, 5, 8, 105,
106, 107, 108
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