506015

Hitachi C7SBL Manual

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English
CAUTION
Should this lever (A) remain loosened, it will create
a very hazardous situation. Always thoroughly clamp
it.
2. Adjusting the angle of inclination
By loosening the wing bolt at the scale, the saw
blade can be titled up to maximum angle of 45°
against the base (Fig. 3).
The angle of inclination can also be regulated by
loosening the wing bolt at the scale (Fig. 3).
CAUTION
It is very hazardous to allow this wing bolt to
remain loosened. Always thoroughly clamp it.
3. Regulating the guide (Optional accessory)
The cutting position can be regulated by moving
the guide to the left or right after loosening its wing
bolt.
The guide can be mounted on either the left or the
right side.
CUTTING PROCEDURES
1. Place the saw body (base) on the lumber, and align
the cutting line with the saw blade at the front scale
(Fig. 4).
2. Turn ON the switch before the saw blade contacts
the lumber. The switch is turned ON when the trigger
is squeezed, and turned OFF when the trigger is
released.
CAUTIONS
Prior to cutting operation, make sure the material you
are going to cut. If the material to be cut is expected to
generate harmful / toxic dusts, make sure the dust bag or
appropriate dust extraction system is connected with
dust outlet tightly.
Wear the dust mask additionally, if available.
⅜ Before starting to saw, confirm that the saw blade
has attained full-speed revolution.
⅜ Should the saw blade stop or make an abnormal
noise while operating, promptly turn OFF the switch.
⅜ Always take care in preventing the power cord from
coming near to the revolving saw blade.
⅜ Using the circular saw with the saw blade facing
upwards or sideways is very hazardous. Such
uncommon applications should be avoided.
⅜ When cutting materials, always wear protective
glasses.
⅜ When finished with a job, pull out the plug from
the receptacle.
MOUNTING AND DISMOUNTING THE SAW
BLADE
CAUTION
To avoid serious accident, ensure the switch is in the
OFF position, and the power source is disconnected.
1. Dismounting the saw blade
(1) Set the cutting volume at maximum, and place the
Circular Saw as shown in Fig. 5.
(2) Depress the lock lever, lock the spindle, and remove
the hexagonal-socket bolt with the hex. bar wrench.
(3) While holding the lower guard lever to keep the
lower guard 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) As shown in Fig. 6, the side of Washer (A) with
a projected center the same diameter as the inner
diameter of the saw blade and the concave side
of Washer (B) must be fitted to the saw blade sides.
* Washer (A) is supplied for 2 types of saw blades
with the hole diameters of 20 mm and 30 mm.
(When buying the Circular Saw, one type of
washer (A) is supplied.)
In case the hole diameter of your saw blade
does not correspond to that of washer (A), please
contact the shop where you purchased the
Circular Saw.
(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-socket bolt
retaining the saw blade as much as possible. Then
depress the lock lever, lock the spindle, and
thoroughly tighten the hexagonal-socket bolt.
CAUTION
After having attached the saw blade, reconfirm that the
lock lever is firmly secured in the prescribed position.
MAINTENANCE AND INSPECTION
1. Inspecting the saw blade
Since use of a dull saw blade will degrade efficiency
and cause possible motor malfunction, sharpen 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 loose, retighten them immediately. Failure
to do so could result in serious hazard.
3. Maintenance of the motor
The motor unit winding is the very “heart” of the
power tool.
Exercise due care to ensure the winding does not
become damaged and/or wet with oil or water.
4. Inspecting the carbon brushes
For your continued safety and electrical shock
protection, carbon brush inspection and replacement
on this tool should ONLY be performed by a Hitachi
Authorized Service Center.
5. Replacing supply cord
If the replacement of the supply cord is necessary,
this has to be done by the manufacturer of this
agent in order to avoid a safety hazard.
6. Adjusting the base and saw blade to maintain
perpendicularity
The angle between the base and the saw blade has
been adjusted to 90°, however should this
perpendicularity be lost for some reason, adjust in
the following manner:
(1) Turn the base face up (Fig. 7) and loosen the wing-
bolt (Fig. 3).
(2) Apply a square to the base and the saw blade and
turning the slotted set screw with a slotted-head
screwdriver, shift the position of the base to produce
the desired right angle.
01Eng_C6SS_WE 2/2/09, 21:508
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