Hitachi CR 13V Handling Instructions Manual page 6

Be careful not to let sawdust, earth, moisture, etc.,
enter the inside of the machine through the plunger
section during operation. If sawdust and the like
accumulate in the plunger section, always clean it
before use.
Do not remove the front cover (refer to Fig. 1).
Be sure to hold the body from the top of the front
cover.
During use, press the base against the material
while cutting.
Vibration can damage the saw blade if the base is
not pressed firmly against the workpiece.
Furthermore, a tip of the saw blade can sometimes
contact the inner wall of the pipe, damaging the
saw blade.
Select a saw blade of the most appropriate length.
Ideally, the length protruding from the base of the
saw blade after subtracting the stroke quantity should
be larger than the material (see Fig. 15 and
Fig. 17).
If you cut a large pipe, large block of wood, etc.,
that exceeds the cutting capacity of a blade; there
is a risk that the blade may contact with the inner
wall of the pipe, wood, etc., resulting in damage.
(Fig. 16, Fig. 18)
Stroke
Stroke
5
Fig. 15
Fig. 16
Fig. 17
Fig. 18
1. Cutting metallic materials
CAUTION
Press the base firmly against the workpiece.
Never apply any unreasonable force to the saw
blade when cutting. Doing so can easily break the
blade.
(1) Fasten a workpiece firmly before operation. (Fig. 19)
(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.
2. Cutting lumber
When cutting lumber, make sure that the workpiece
is fastened firmly before beginning. (Fig. 20)
CAUTION
Never apply any unreasonable force to the saw
blade when cutting. Also remember to press the
base against the lumber firmly.
3. Sawing curved lines
We recommend that you use the BI-METAL blade
mentioned in Table 2 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.
4. 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. 22,
Fig. 24, and Fig. 26. 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 2. 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. 21, Fig. 22)
(2) Raise the handle slowly and cut in with the saw
blade little by little. (Fig. 23, Fig. 24)
(3) Hold the body firmly until the saw blade completely
cuts into the material. (Fig. 25, Fig. 26)
Fig. 19
Fig. 20