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Hitachi C 13 U Manual

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English
4. Prepare a wooden workbench (Fig. 1)
Since the saw blade will extend beyond the lower
surface of the lumber, place the lumber on a
workbench when cutting. If a square block is utilized
as a workbench, select level ground to ensure it
is properly stabilized. An unstable workbench will
result in hazardous operation.
CAUTION
To avoid possible accident, always ensure that the
portion of lumber remaining after cutting is securely
anchored or held in position.
ADJUSTING THE SAW PRIOR TO USE
1. Adjusting the cutting depth
As shown in Fig. 2 cutting depth adjustment can
be accomplished by loosening clamp lever and
shifting the base. When the base and saw blade
are at a perpendicular angle, use the link scale to
adjust the cutting depth.
Measure the distance that the saw blade extends
to adjust the cutting depth to the correct distance
because the scale marks are only indicated for
reference. After the adjustment is over, securely
tighten the clamp lever.
2. Installing riving knife
(1) Place the base facing upward and loosen the clamp
lever. Lift the base until the depth of cut on the
main unit reaches the minimum state, fasten the
clamp lever, and secure the base. (Fig. 2)
(2) Install the riving knife to the arm securely with the
2 attached bolts. (Fig. 3)
3. Adjusting the riving knife
Loosen the hexagon head bolts used to clamp the
riving knife, adjust the riving knife to the position
shown in Fig. 4 and securely retighten the bolts.
After adjustment, ensure that the riving knife moves
by following the adjusted cutting depth.
4. Adjusting the angle of inclination
As shown in Fig. 5 by loosening the wing bolt on
the scale and the wing bolt (Fig. 2) on the rear of
the base, the saw blade may be inclined to a
maximum angle of 45° in relation to the base.
Always ensure that the wing bolts are securely
tightened after making the desired adjustment.
5. Adjusting the guide (Fig. 6)
The cutting position can be adjusted by moving the
guide to the left or right after loosening its wing
bolt. The guide can be mounted on either the right
or left side of the base.
CUTTING PROCEDURES
1. Place the saw body (base) on the lumber and align
the premarked line of cut with the saw blade, using
the carved line at the front of the base. Align with
the premarked line on the right when not inclined,
and at the premarked line on the left at 45° inclined.
(Fig. 6)
2. Ensure that the switch is turned to the ON position
before the saw blade comes in contact with the
lumber. The switch is turned ON when the trigger
is squeezed; and OFF when the trigger is released.
3. Moving the circular saw straight with an appropriate
speed will result in optimum cutting.
CAUTIONS
⅜ Before starting cutting operation, ensure that the
saw blade has reached full speed revolution.
⅜ Should the saw blade stop or makes an abnormal
noise during operation, turn off the switch
immediately.
⅜ Always take care in preventing the power cord from
coming near the revolving saw blade.
MOUNTING AND DISMOUNTING
THE SAW BLADE
CAUTION
To avoid serious accident, ensure the switch is in the OFF
position, and the plug is disconnected from the power
receptacle.
1. Dismounting the saw blade
(1) Set the cutting depth at maximum, and place the
Circular Saw as shown in Fig. 7.
(2) Depress the lock lever to lock the spindle, and
remove the hexagon head bolt with the provided
wrench by turning it counterclockwise.
(3) While holding the safely cover lever to keep it fully
retracted into the saw cover, remove the saw blade.
2. Mounting the Saw Blade:
(1) Thoroughly remove any sawdust which has
accumulated on the spindle, bolt and washers.
(2) The inside diameter of the saw blade differs according
to the market area the circular saw is sold in.
(a) For mounting saw blade of 25 mm inner
diameters (Fig. 8 (a)), mount the saw blade to
washer (A) whose size is identical with the saw
blade inner diameter, and the concave side of
washer (B) faces the saw blade.
(b) In the case of a saw blade of 30 mm inner
diameter (Fig. 8 (b)), mount the adapter ring to
washer (A) whose size is identical with the
adapter ring inner diameter and mount the saw
blade on the adapter ring, and the concave side
of washer (B)) faces the saw blade.
(3) To check proper rotation direction of the saw blade,
the arrow direction on the saw blade must coincide
with the arrow direction embossed on the saw
cover.
(4) Using the fingers, tighten the hexagon head bolt
retaining the saw blade as much as possible. Then
depress the lock lever, lock the spindle, and securely
tighten the bolt.
CAUTION
On completion of mounting the saw blade, reconfirm that
the lock lever is firmly resumed in the original position.
MAINTENANCE AND INSPECTION
1. Inspecting the saw blade:
Since use of a dull saw blade will degrade efficiency
and cause possible motor malfunction, resharpen
or replace the saw blade as soon as 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 loosened, retighten them immediately.
Failure to do so could result in serious hazard.
01Eng_C13U_WE 08/10/31, 10:148
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