
B–70115EN/03
10. REPLACEMENT PROCEDURES
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Replace the matching box as follows:
(1)Turn off the power to the CNC, then turn off the power to the laser
oscillator. In addition, open the main circuit breaker for the laser
oscillator.
(2)Disconnect the power and signal cables from the matching box.
(3)Remove the resonator fan unit, then remove the discharge tube feeder.
(4)Remove the two rods (a long one and a short one) from the matching
box, using an 8–mm spanner.
(5)Remove the two securing screws, then remove the matching box by
slightly pulling it toward you. If it proves difficult to remove the
matching box, slightly shift it to the right or left, then retry.
(6)Mount a new matching box by reversing steps (5) to (2).
CAUTION
The screws used to fix the power cables are made of brass.
These screws may be damaged if tightened excessively.
Steel screws cannot be used because they generate heat.
10.3
REPLACING THE
MATCHING BOX