LW500A/LW600A PULSED Nd:YAG LASER
990-539 xiii
Installation Precautions (Continued)
Operate the switches and buttons one at a time. If two or more of them are operated
simultaneously, the Laser may develop trouble.
The outer panels and the covers are electrically connected to the main unit by connecting ground
cables. When the panels, covers and connecting cables are removed and installed again, make sure
that all these ground cables are put back into place correctly. Also, make sure that the cables do not
block the optical path of the oscillator or get caught between the outer panel and the frame.
Operation Precautions
When operating or servicing the Laser Welder unit, always wear Protective Goggles having an optical
density of at least 7
+
at a wavelength of 1064 nanometers for the operation of the LW500A(E)/600A(E)
and ML-2651B(-CE)/2650B(-CE) Nd:YAG Laser Welders.
Appoint a Laser Safety Officer (LSO). The LSO must provide personnel with sufficient training so that
they can operate, maintain and service the Laser Welder safely. The LSO must take charge of the key to
the Key Switch to ensure that only qualified and authorized personnel operate the Laser Welder.
Establish and control a dedicated Laser Operation Area. The LSO must isolate the Laser Operation Area
from other work areas and display signs warning that the Laser Operation Area is off-limits to
unauthorized personnel.
Maintenance/Service Precautions
Do not modify the Laser Welder without prior written approval from Amada Miyachi America.
Before performing any maintenance on the Laser, read Chapter 5, Maintenance thoroughly. Use
the appropriate tools for terminating the connecting cables, being careful not to nick the wire
conductors.
Procedures other than those described in this manual or not performed as prescribed in this manual,
may expose personnel to electrical and/or laser radiation hazards.
Cold Weather Precautions
Rapid temperature changes may cause dew condensation on the end faces of the Nd:YAG rod and
on other optical surfaces. This will attract dust and can cause damage to the optical surfaces. If this
occurs, see Chapter 5, Maintenance for corrective action.
If the temperature drops below 32°F (0°C), the water inside the Laser’s cooling system can freeze,
thus damaging the unit. Take special care to keep the ambient temperature above 32°F (0°C). If the
temperature is likely to drop below 32°F (0°C), drain the water in accordance to the procedure
described in Chapter 5, Maintenance.
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