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 | |
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| Under direct | Shaded area | Cloudy | Shaded area | Just before |
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| the sunset in |
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| Outdoor | sunlight of fine | in cloudy | - |
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| in fine weather | weather | cloudy |
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| weather | weather |
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Ambient |
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| weather |
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| Ink line is | ||
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| Near the | ||
conditions |
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| Near the |
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| window | invisible. | ||
(reference) |
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| Near the | Indoor under | window | Indoor under | ||
Indoor | - | under cloudy |
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| window under | under | cloudy |
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| fine weather | weather, just |
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| fine weather | cloudy | weather |
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| before the |
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| weather |
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| sunset |
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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.
