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

SELECTION OF BLADES

To ensure maximum operating effi ciency and results, it is
very important to select the appropriate blade best suited to
the type and thickness of the material to be cut.
The blade number is engraved in the vicinity of the mounting
portion of each blade. Select appropriate blades by referring
to Table 4-5.
Table 4: HCS blades
Blade No.
No. 4 For cutting and roughing
lumber
No. 5 For cutting and roughing
lumber
No. 95 For cutting stainless pipe less
than 100 mm in diameter
No. 96 For cutting stainless pipe less
than 30 mm in diameter
Table 5: Bl-METAL blades
Blade No.
No. 101
For cutting steel and stainless
No. 103
pipes less than 60 mm in outer
No. 109
diameter
No. 141(S)
No. 102
No. 104 For cutting steel and stainless
No. 110 pipes less than 100 mm in outer
No. 142(S) diameter
No. 143(S)
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 All purpose
No. 132 All purpose
Table 6: Selection of blades for other materials
Material to Material
be cut quality
Iron plate Mild steel
plate
Nonferrous Aluminium,
metal Copper and
Brass
Thickness
Uses
(mm)
50 – 70
Below 30
Below 2.5
Below 2.5
Thickness
Uses
(mm)
2.5 – 6
2.5 – 6
Below 3.5
Below 3.5
100
100
100
Thickness Blade No.
(mm)
No. 101, 102,
103, 104,
2.5 – 10 109, 110,
131, 141(S),
142(S), 143(S)
Below 3.5 No. 107, 108
No. 101, 102,
103, 104, 109,
5 – 20 110, 131,
132, 141(S),
142(S), 143(S)
Below 5 No. 107, 108
Synthetic 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. Cleaning on the outside
When the power tool is stained, wipe with a soft dry cloth
or a cloth moistened with soapy water. Do not use chloric
solvents, gasoline or paint thinner, for they melt plastics.
5. Storage
Store the power tool in a place in which the temperature
is less than 40°C and out of reach of children.
NOTE
Storing lithium-ion batteries.
Make sure the lithium-ion batteries have been fully
charged before storing them.
Prolonged storage (3 months or more) of batteries with
a low charge may result in performance deterioration,
signifi cantly reducing battery usage time or rendering
the batteries incapable of holding a charge.
However, signifi cantly reduced battery usage time may
be recovered by repeatedly charging and using the
batteries two to fi ve times.
If the battery usage time is extremely short despite
repeated charging and use, consider the batteries dead
and purchase new batteries.
CAUTION
In the operation and maintenance of power tools, the
safety regulations and standards prescribed in each
country must be observed.
9
English
No. 101, 102,
103, 104, 131,
10 – 50
132, 141(S),
142(S), 143(S)
No. 107, 108,
5 – 30
109, 110
No. 101, 102,
103, 104, 131,
10 – 60
132, 141(S),
142(S), 143(S)
No. 107, 108,
5 – 30
109, 110