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• Reduce cutting speed.
• Use a thicker and shorter
extension cord.
• Resharpen saw blade.
• Use a suitable Hitachi-supplied
saw blade.
• An increased number of teeth
on the saw blade increases the
cutting resistance. When using
a saw blade with a large
number of teeth, reduce the
cutting speed.
• Correct workpiece deformation
with planer.
• Check power supply voltage.
• Connect the power cord to
power supply.
• Check the Carbon Brushes
[100] for wear.
• Replace the Carbon Brush (es)
[100].
a Excessively fast
cutting speed.
b Core diameter of
extension cord is too
small.
c Excessive cutting force
is applied due to dull
saw blade.
d Incorrect saw blade is
used.
e Saw blade binds in
workpiece during
cutting because
workpiece is warped
or bent.
a Power cord is not
connected to power
supply.
b Carbon brush wear
exceeds allowable
limit (6 mm).
c Contact failure of the
switch.
d Controller failure.
a Power supply voltage
is lower than rated
voltage.
b Controller failure.
3
4
5
Saw blade is locked.
Saw blade does not
rotate when switch is
triggered.
Saw blade runs too
slow.
(Not within 2,900 to
3,500/min.)
• Check the Switch [149] for
conductivity.
• Replace the switch.
• Replace the Controller [110].
• Check for power supply
voltage.
• Check if extension cord is
appropriate. See the
Handling Instructions for
appropriate extension cords.
• Replace the Controller [110].
Item
Phenomenon
Cause (s)
Factory
standard
Inspection • Repair •Adjustment
Содержание C 12FSA
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