Selection Of Blades - Hitachi CR14DSL Handling Instructions Manual

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2. Cutting metallic materials
CAUTION
○ Press the base fi rmly against the workpiece.
○ Never apply any unreasonable force to the saw blade
when cutting. Doing so can easily break the blade.
○ The motor can be locked sometimes, depending
on the combination of the material to be cut and the
blade. Whenever the motor gets locked, switch it off
immediately.
(1) Fasten a workpiece fi rmly before operation. (Fig. 22)
(2) When cutting metallic materials, use proper machine
oil (turbine oil, etc.). When not using liquid machine oil,
apply grease over the workpiece.
CAUTION
The service life of the saw blade will be drastically
shortened if you don't use machine oil.
3. Cutting lumber
When cutting lumber, make sure that the workpiece is
fastened fi rmly before beginning. (Fig. 23)
CAUTION
Never apply any unreasonable force to the saw blade
when cutting. Also remember to press the base against
the lumber fi rmly.
4. Sawing curved lines
We recommend that you use the BI-METAL blade
mentioned in Table 6 for the saw blade since it is tough
and hardly breaks.
CAUTION
Delay the feed speed when cutting the material into small
circular arcs. An unreasonably fast feed may break the
blade.
5. Plunge cutting
With this tool, you can perform plunge cutting on plywood
panels and thin board materials. You can carry out
pocket cutting quite easily with the saw blade installed
in reverse as illustrated in Fig. 25, Fig. 27, and Fig. 29.
Use the saw blade that is as short and thick as possible.
We recommend for this purpose that you use BI-METAL
Blade No. 132 mentioned in Table 6. Be sure to use
caution during the cutting operation and observe the
following procedures.
(1) Press the lower part (or the upper part) of the base
against the material. Pull the switch trigger while keeping
the tip of the saw blade apart from the material (Fig. 24,
Fig. 25).
(2) Raise the handle slowly and cut in with the saw blade
little by little (Fig. 26, Fig. 27).
(3) Hold the body fi rmly until the saw blade completely cuts
into the material (Fig. 28, Fig. 29).
CAUTION
○ Avoid plunge cutting for metallic materials. This can
easily damage the blade.
○ Never pull the switch trigger while the tip of the saw blade
is pressed against the material. If you do so, the blade
can easily be damaged when it collides with the material.
○ Make absolutely sure that you cut slowly while holding
the body fi rmly. If you apply any unreasonable force to
the saw blade during the cutting operation, the blade can
easily be damaged.
NOTE
The use of the battery BSL1430 and BSL1830 in
a cold condition (below 0 degree Centigrade) can
sometimes result in the weakened cutting torque and
reduced amount of work. This, however, is a temporary
phenomenon, and returns to normal when the battery
warms up.
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6. About Remaining Battery Indicator
When pressing the remaining battery indicator switch,
the remaining battery indicator lamp lights and the
battery remaining power can be checked. (Fig. 30) When
releasing your fi nger from the remaining battery indicator
switch, the remaining battery indicator lamp goes off . The
Table 4 shows the state of remaining battery indicator
lamp and the battery remaining power.
Table 4
State of lamp Battery Remaining Power
The battery remaining power is
enough.
The battery remaining power is a half.
The battery remaining power is nearly
empty.
Re-charge the battery soonest
possible.
As the remaining battery indicator shows somewhat
diff erently depending on ambient temperature and
battery characteristics, read it as a reference.
NOTE:
○ Do not give a strong shock to the switch panel or break it.
It may lead to a trouble.
○ To save the battery power consumption, the remaining
battery indicator lamp lights while pressing the remaining
battery indicator switch.

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.
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 5 is engraved
in the vicinity of the mounting position of each blade.
Select appropriate blades by referring to Tables 5 and 7
below.