Additional Safety Instructions For All Saws With Riving Knife; Precautions On Using Circular Saw; Symbol - Hitachi C 9U2 Handling Instructions Manual

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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 moves 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 C9U2, the saw blades should be 235 mm.
14. Disconnect the plug from the receptacle before carrying out any adjustment,
servicing or maintenance.

SYMBOL

WARNING
The following show symbols used for the machine. Be sure that you understand their
meaning before use.
To reduce the risk of injury, user must read instruction manual.
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