Hitachi CW 40 Instruction Manual page 15

BLADE GUARD FOOT ADJUSTMENT (FIG. O, P)
NOTE: User must keep constant downward pressure
on workpiece when cutting. The blade guard foot is not
designed to hold down the workpiece, but is rather to
help prevent the workpiece from lifting up excessively.
When cutting at angles, the table guard foot (1) should
be adjusted so it is parallel to the table and rests flat
above the workpiece.
1. To adjust, loosen the screws (2-Fig. P), and tilt the
foot so it is parallel to the table. Tighten the screw.
2. Loosen the blade guard foot lock knob (3) to raise
or lower the foot until it rests slightly above the
workpiece. Tighten blade guard foot lock knob.
3. To remove the blade guard foot (1), loosen the hex
screws (2) by use a hex wrench to turn the screw
counterclockwise. (Fig. P)
NOTE: The stopper (4) on the blade guard foot is only
used for 0 cutting. To avoid the blade guard foot contact
0
with the arm, adjust the foot to desired position when
beveling.
Fig. O
3
1
Fig. P
2
2
SAWDUST BLOWER (FIG. Q)
The sawdust blower (1) should be positioned to point to
the blade and workpiece to blow sawdust out of the line
of sight when cutting. It is not designed to blow all of the
sawdust off the table.
Fig. Q
4
1
I
O
1
BLADE SELECTION (FIG. R)
To avoid injury from accidental starting, always turn
the switch OFF (O) and unplug the scroll saw before
moving, replacing the blade or making adjustments.
This scroll saw accepts 5-inch length blades with a
wide variety of blade thickness and widths. The type of
material and cutting operations (size of radius or curve)
will determine the number of teeth per inch. As a rule,
always select the narrowest blades for intricate curve
cutting and the widest blades for straight and large
curve cutting operations.
The following table represents suggestions for various
materials. When purchasing blades, refer to the back of
the package for the best use of blades and speeds on
various materials.
Use this table as an example, but practice and your own
personal preference will determine the best selection
method.
Fig. R
9.5-15
TEETH/ BLADE BLADE
INCH WIDTH THICKNESS
TPI INCH INCH
9.5-15 0.110 0.018
15-28 .055-.110 .010-.018
30-48 .024-.041 .012-.019
NOTE: When using blades, sometimes speeds must
change to compensate for smaller curves, radii or
smaller diameters. Thinner blades will have more
possibilities for blade deflection when cutting angles
which are not perpendicular to the table. Read BASIC
SCROLL SAW OPERATION for more suggestions.
NOTE: The blade must be installed with the teeth
pointing downward, as shown in Fig. R, to prevent the
workpiece from being pulled upward by the saw blade
action.
- 15 -
WARNING
15-28
30-48
BLADE/
SPM MATERIAL CUT
Medium turns on 1/4
400-1200 in. to 1-3/4 in. wood,
soft metal, hardwood
Small turns on 1/8 in.
800-1800 to 1-1/2 in. wood, soft
metal, hardwood
Non-ferrous
metals/hardwoods
Varies
using very slow
speeds
English