B-70315EN/02 7.UNITS
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7.9.2 Replacement Method
7.9.2.1 Replacing the charge unit
(1) Turn off the power to the CNC, then turn off the main circuit
breaker and power supply for the laser oscillator.
(2) Close the valve of the external laser gas supply (for example, a
gas cylinder).
(3) Disconnect all tubes and cables. Pressurized laser gas may
remain in the control unit. Discharge this gas by loosening the
nut on the fittings.
(4) Remove the unit securing screws, then remove the unit.
(5) Mount a new unit by reversing steps (3) and (4).
(6) Adjust the charge unit by following the adjustment procedure
described in Subsection 7.9.3.
(7) Turn on the oscillator, then perform a gas leakage check and
discharge aging.
7.9.2.2 Replacing the exhaust unit
(1) Turn off the power to the CNC, then turn off the main circuit
breaker and power supply for the laser oscillator.
(2) Disconnect the tubes and cables from the exhaust unit.
(3) Remove the screws that secure the unit, and remove the unit to
replace it with a new one.
(4) Mount a new unit by reversing steps (2) and (3).
(5) Turn on the oscillator, then perform a gas leakage check and
discharge aging.
(6) Perform all settings as described in Subsection 7.9.3.4, then
check the operation.