Cutting Procedures; Mounting And Dismounting The Saw Blade; Use Of Dust Bag - Hitachi C 7YA Handling Instructions Manual

You can move the slide cover of the tool up and
down. The slide cover is mounted in the lowermost
position when the tool is shipped from the factory.
If you use it in the originally mounted position for
right-angle cutting, you can reduce the scattering
sawdust particles.
When you find it difficult to inspect the blade tip,
or in case of inclined cutting, or when you use the
guide for cutting, loosen the screw, move the slide
cover upward and make necessary adjustment before
use. (For inclined cutting, fix the slide cover in the
uppermost position.) Make sure that the screw is
tightened securely after adjustment.
2. Adjusting the cutting depth (Fig. 3)
To adjust cutting depth, loosen the clamp lever and,
while holding the base with one hand, move the
main body up and down to obtain the prescribed
cutting depth. After adjusting to the prescribed
cutting depth, tighten the clamp lever securely.
3. Adjusting the angle of inclination
NOTE:
Keep the slide cover moved up to the uppermost
position before making adjustment on the angle
of inclination.
As shown in Fig. 4 by loosening the wing-bolt (A) on
the inclined gauge, the saw blade may be inclined to
a maximum angle of 45° in relation to the base.
Always ensure that the wing-bolt (A) is thoroughly
tightened after making the desired adjustment.
4. Regulating the guide (Rip fence) (Fig. 5)
..................................................... Optional Accessory
NOTE:
When mounting the guide, move the slide cover
upward to the extent where the guide is not in
touch with the slide cover.
The cutting position can be regulated by moving
the guide to the left or right after loosening its
wing-bolt (B). The guide may be mounted on either
the right or left side of the base.

CUTTING PROCEDURES

1. Place the saw body (base) on the work piece, and
as in Fig. 6 align the intended line of cut with the
saw blade, using the notch at the front of the base.
This relationship of base to work pieces should
remain unchanged regardless of the inclination of
the base.
2. The switch should be turned to the ON position
before the saw blade comes into contact with the
work piece. The switch is turned ON when the
trigger is pulled by one's finger, and is turned OFF
when the trigger is released.
3. Moving the saw straight at a constant speed will
produce optimum cutting.
CAUTION:
Keep hands away from cutting edges while the
circular saw is being operated.
Should the saw blade be stopped or make an
abnormol noise during operation, turn off the
switch immediately.
Don't remove circular saw from work piece during
a cut while the saw blade is moving.
Wear protective glasses and a dustproof mask.
Avoid cutting any material like metal, etc., that
give off sparks.
Always take care in preventing the power cord
from coming near the revolving saw blade.
Mount either of the dust bag, or dust guide
before use.
Before starting to saw, ensure that the saw blade
has reached full speed revolution.
MOUNTING AND DISMOUNTING THE SAW
BLADE
CAUTION:
To avoid serious accident ensure the switch is
in the OFF position, and disconnect the plug from
the receptacle.
1. Dismounting the saw blade (Fig. 7)
To replace the saw blade, push the lock lever, then
loosen the hexagonal bolt with the wrench.
The blade comes off easily.
2. Mounting the saw blade (Fig. 8)
(1) Thoroughly remove any sawdust which has
accumulated on the spindle, bolt and washers.
(2) For mounting saw blade, the concave sides of both
washers (A) and (B) must be fitted to the saw blade
sides. Mount the saw blade on the spindle, and
finally affix washer (B).
(3) To assure proper rotation direction of the saw blade,
the arrow direction on the saw blade must coincide
with the arrow direction on the saw cover.
(4) Using the fingers, tighten the hexagonal bolt
retaining the saw blade as much as possible. Then
depress the lock lever, lock the spindle, and
thoroughly tighten the bolt.
(5) Confirm that the lock lever is in the original position.

USE OF DUST BAG

CAUTION
To avoid serious accident, ensure the switch is
in the OFF position, and disconnect the plug from
the receptacle.
Never attempt to saw any material like metal and
so on that give off sparks. Such action can lead
to fire or injury.
1. Mounting the dust bag
Hold the clasp of the dust bag and insert it into
the adapting mouth of the body while opening the
thrusting mouth (Fig. 9).
2. Dumping sawdust and cleaning the inside of dust
bag
NOTE
If too much sawdust is accumulated inside the
dust bag, the dust collector will run low on
power. Attempt to dump the sawdust as early
as you can and clean the dust bag thoroughly
so that you can enjoy your work with strong dust
collecting power.
(1) Hold the clasp, open the thrusting mouth of the
dust bag, and pull it off from the body.
(2) Open the fastener (Fig. 10) and dump the sawdust.
English
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