Hitachi C 7D Handling Instructions Manual page 3

11. Wear earplugs to protect your ears during
operation.
12. Always hold the handle of the power tool firmly.
Otherwise the counterforce produced may result
in inaccurate and even dangerous operation.
13. Do not use saw blades which are deformed or
cracked.
14. Do not use saw blades made of high speed steel.
15. Do not use saw blades which do not comply with
the characteristics specified in these instructions.
16. Do not stop the saw blades by lateral pressure
on the disc.
17. Always keep the saw blades sharp.
18. Ensure that the safety cover moves smoothly and
freely.
19. Never use the circular saw with its safety cover
fixed in the open position.
20. Ensure that the retraction mechanism of the guard
system operates correctly.
21. Never operate the circular saw with the saw blade
turned upward to the side.
22. Ensure that the material is free of foreign matters
such as nails.
23. Be careful of brake kickback.
This circular saw features an electric brake that
functions when the switch is released. As there
is somke kickback when the brake functions, be
sure to hold the main body securely.
24. When blade is binding, or when interrupting a cut
for any reason, release the trigger and hold the
saw motionless in the material until the blade
comes to a complete stop. Never attempt to
remove the saw from the work or pull the saw
backward while the blade is in motion or kickback
may occur. Investigate and take corrective actions
to eliminate the cause of blade binding.
25. Support large panels to minimize the risk of blade
pinching and kickback. Large panels tend to sag
under their own weight. Supports must be placed
under the panel on both sides, near the line of
cut and near the edge of the panel as shown in
Fig. 1.
To minimize the risk of blade pinching and kickback.
When cutting operation requires the resting of the
saw on the work piece, the saw shall be rested
on the larger portion and the smaller piece cut
off.
To avoid kickback, do support board
or panel near the cut.
Fig. 1
Don't support board or panel away from the cut.
26. Use extra caution when making a "Pocket Cut"
into existing walls or other blind areas. The
protruding blade may cut objects that can cause
kickback .
Never place your hand or fingers behind the saw.
If kickback occurs, the saw could easily jump
backwards over your hand, possibly causing severe
injury.
27. It is important to support the work piece properly
and to hold the saw firmly to prevent loss of
control which could cause personal injury. Fig. 4
illustrates typical hand support of the saw.
A TYPICAL ILLUSTRATION OF PROPER HAND
SUPPORT AND WORK PIECE SUPPORT.
Fig. 2
Fig. 3
Fig. 4
3