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Hitachi C 7 BU 2 Manual

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English
ADDITIONAL SAFETY INSTRUCTIONS FOR
ALL SAWS WITH RIVING KNIFE
a) Use the appropriate riving knife for the blade
being used.
For the riving knife to work, it must be thicker than
the body of the blade but thinner than the tooth
set of the blade.
b) Adjust the riving knife as described in this
instruction manual.
Incorrect spacing, positioning and alignment can
make the riving knife ineffective in preventing
kickback.
c) Always use the riving knife except when plunge
cutting.
Riving knife must be replaced after plunge cutting.
Riving knife causes interference during plunge
cutting and can create kickback.
d) For the riving knife to work, it must be engaged
in the workpiece.
The riving knife is ineffective in preventing
kickback during short cuts.
e) Do not operate the saw if riving knife is bent.
Even a light interference can slow the closing rate
of a guard.
PRECAUTIONS ON USING CIRCULAR SAW
1. Do not use saw blades which are deformed or
cracked.
2. Do not use saw blades made of high speed steel.
3. Do not use saw blades which do not comply with
the characteristics specified in these instructions.
4. Do not stop the saw blades by lateral pressure
on the disc.
5. Always keep the saw blades sharp.
6. Ensure that the lower guard smoothly and freely.
7. Never use the circular saw with its lower guard
fixed in the open position.
8. Ensure that the retraction mechanism of the guard
system operates correctly.
9. The saw blades body must be thinner than the
riving knife and the width of cut, or kerf (with
teeth set) must be greater than the thickness of
the riving knife.
10. Never operate the circular saw with the saw blade
turned upward or to the side.
11. Ensure that the material is free of foreign matters
such as nails.
12. The riving knife should always be used except
when plunging in the middle of the workpiece.
13. For models C6U2 and C6BU2, the saw blades
range should be from 165 mm to 162 mm.
For models C7U2 and C7BU2, the saw blades
range should be from 190 mm to 185 mm.
14. For models C6BU2 and C7BU2, be careful of brake
kickback.
C6BU2 and C7BU2 models features an electric
brake that functions when the switch is released.
As there is some kickback when the brake
functions, be sure to hold the main body securely.
15. Sparks can sometimes appear caused by braking
operation when the switch is turned off since
C6BU2 and C7BU2 models employ electric brakes.
Be informed, however, that this phenomenon is
not a machine trouble.
16. For models C6BU2 and C7BU2, when the brake
becomes ineffective, replace the carbon brushes
with new ones.
17. Disconnect the plug from the receptacle before
carrying out any adjustment, servicing or
maintenance.
SPECIFICATIONS
*Be sure to check the nameplate on product as it is subject to change by areas.
Model C6U2 C6BU2 C7U2 C7BU2
Voltage (by areas)*
(110 V, 230V)
Cutting Depth
90° 54 mm 66 mm
45° 39 mm 48 mm
Power
Input*
1100 W 1200 W
No-Load Speed
5500 min
-1
Weight (without cord) 3.5 kg 4.0 kg
STANDARD ACCESSORIES
(1) Saw Blade (mounted on tool ) ............................... 1
Dia. 165 mm .......... C6U2, C6BU2
Dia. 190 mm .......... C7U2, C7BU2
(2) Hex. bar wrench ....................................................... 1
(3) Guide .......................................................................... 1
(4) Wing-bolt ................................................................... 1
(5) Lever (short type) ..................................................... 1
(6) Dust collector ............................................................ 1
Standard accessories are subject to change without
notice.
OPTIONAL ACCESSORIES (sold separately)
(1) Washer (A) ... for 16
mm (Hole dia. of saw blade)
... for 30 mm (Hole dia. of saw blade)
(2) Guide Rail Adapter (See Fig. 13)
Optional accessories are subject to change without notice.
APPLICATION
Cutting various types of wood.
… 32 …


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