maintenance/
troubleshooting
78
SYNRAD OEM v30 Operator’s Manual Version 2
Troubleshooting
Warning
serious
personal
injury
A risk of exposure to toxic elements, like zinc selenide, may result
when certain optical or beam delivery components are damaged. In
the event of damage to laser, marking head, or beam delivery optics,
contact SYNRAD, Inc. or the optics manufacturer for handling
instructions.
Danger
serious
personal
injury
Ensure that DC power to the laser is turned off and locked out before
inspecting optical components in the beam path. Invisible CO
2
laser
radiation is emitted through the aperture. Corneal damage or blind-
ness may result from exposure to laser radiation.
Shut down the laser and carefully inspect each optic in the beam delivery path, including the laser’s output
coupler. Remember that optics are fragile and must be handled carefully. If the optic requires cleaning,
then refer back to Maintenance for cleaning instructions. Use only recommended cleaning materials (see
Table 4-1) to prevent scratching delicate optical surfaces.
If the focusing optic is pitted, it must be replaced immediately. Because of the extremely high power den-
sity of Firestar lasers, pits or debris on the lens may absorb enough energy from the focused beam to crack
the lens. If this happens, other optics in the beam path may be contaminated or damaged as well.
When the application requires air (instead of nitrogen) as an assist gas, we recommend the use of breath-
ing quality air available in cylinders from a specialty gas supply company, Because compressed shop air con-
tains minute particles of oil and other contaminants that will damage optical surfaces, it must be carefully
filtered and dried before use as a purge or assist gas. Refer to Table 3-1, Assist gas purity specifications, in the
Technical Reference chapter for filtering and drying specifications.
