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
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
3000 or more
sunlight of fine
(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
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
(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.
3000 or more
in fine weather
3000 - 2500
800 - 600
300 - 200
150 - 80
the sunset in
30 or less
Ink line is