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CAUTION: (1) Be sure to disconnect the power cord plug from the receptacle before removing the
laser marker for repair. If it is unavoidable to check the operation of the removed
laser marker with the power turned on, face the laser emitting aperture to the ground
to show the laser line on the ground.
(2) Laser radiation when open. DO NOT STARE INTO BEAM OR VIEW DIRECTLY WITH
OPTICAL INSTRUMENTS.
The life span of the laser marker in the Model C 8FSHE is about 3,600 hours. (About 3 years: 5 hours of
use/day x 240 days/year)
2. Precautions requiring particular attention during sales promotion
A. Ambient illuminance and visibility of laser line (only the Model C 8FSHE)
The visibility of the laser line on the workpiece changes depending on the brightness of the working
environment. Instruct the customer to consider the brightness of the working environment when using the
laser marker referring to the following table.
Table 7 Ambient illuminance and visibility of laser line
Illuminance (lux) 3000 or more 3000 or more 3000 - 2500 800 - 600 300 - 200 150 - 80 30 or less
Outdoor
Under direct
sunlight of fine
weather
Shaded area
in fine weather
Cloudy
weather
Shaded area
in cloudy
weather
Just before
the sunset in
cloudy
weather
-
Ambient
conditions
(reference)
Indoor
-
Near the
window under
fine weather
Indoor under
fine weather
Near the
window
under
cloudy
weather
Indoor under
cloudy
weather
Near the
window
under cloudy
weather, just
before the
sunset
Ink line is
invisible.
Laser line Invisible Visible Visible Visible Visible Glaring Glaring
(The working environment where the illuminance is 200 luxes or less is dark and difficult to operate the
Model C 8FSHE.)
The laser line is invisible under direct sunlight of fine weather. Prepare a shaded area or relocate to a
shaded area to operate the Model C 8FSHE.
When a laser line is dazzling, please light up the laser line with a LED light. You can watch a laser line if you
do so.
B. Precautions concerning brake
The Models C 8FSE and C 8FSHE are equipped with a "brake" that stops running when the switch is
turned off. Normally the operation is stopped in 5 - 6 seconds when the switch is turned off. If it takes 10
seconds or more to stop, absolutely avoid further use of this machine. In this event, ensure that your
customers bring this machine in their local Hitachi power tools dealer or Hitachi power tools center for
servicing.
(1) Be sure to use the carbon brushes dedicated to the Models C 8FSE and C 8FSHE (110 V to 120 V:
Code No. 999021, 220 V to 240 V: Code No. 999001). Use of other carbon brushes will adversely affect
the brake performance.
(2) If the brake should fail to work, check the carbon brushes. Replace the carbon brushes with new ones if
their length is shorter than 6 mm. If the brake still does not work, replace the armature ass’y.