Hitachi C 12LSH Technical Data And Service Manual page 78

Item
Phenomenon
6 Laser marker does not
light.
Laser light is poor or
7
strong.
Laser line does not
8
match the ink line.
Fig. 83
Fig. 84
Cause (s)
a Improper wiring
b Switch failure
c Switching power
supply failure
d Laser marker failure
a Switching power
supply failure
b Laser marker failure
a Ink line is not right
angle.
b Laser marker accuracy
is not adjusted
properly.
c Product accuracy is
not good.
Factory
standard
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0.2/100
(Fig. 83 and
Fig. 84)
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Inspection, repair or adjustment
• Check the wiring.
• Check the laser switch
(w/cover) on the top of the
Monitor [260] for conductivity.
(Model C 12LSH)
• Replace the Monitor [260].
(Model C 12LSH)
• Check the Switch (W/Cover)
[319] on the side of Handle (R)
[238] for conductivity. (Model
C 12RSH)
• Replace the Switch (W/Cover)
[319]. (Model C 12RSH)
• Check the Switching Power
Supply [233] for conductivity,
input and output referring to
"11-4. Wiring Diagram."
• Replace the Switching Power
Supply [233].
• Replace the Laser Marker
[198A].
• Same as item 6- c .
• Same as item 6- d .
• Make a correct ink line again.
• Readjust the accuracy of the
laser marker. (Refer to "11-10.
Adjustment of Laser Marker
Accuracy.")
• Readjust the accuracy of
product and the laser marker.
• If the forward position of the
laser line is different from the
backward position when sliding,
Slide Pipe (A) [149] is not
parallel with Slide Pipe (B)
[166]. Replace Slide Pipe (A)
[149] or Slide Pipe (B) [166].