Hypertherm HyIntensity Fiber Laser Rev.3 - Manual (Page 205)

Maintenance
HyIntensity Fiber Laser Instruction Manual – 807090 Revision 3 4-13
8. With the spring washer side of the lens holder facing upward, put the lens holder on a flat surface with a lens
tissue beneath it.
9. Carefully start to screw the lens retaining ring into the lens holder using the spanner wrench. Be careful to
avoid crossing the threads. DO NOT tighten the lens retaining ring at this time.
10. Once the lens retaining ring threads start to catch, turn the lens holder and spanner wrench over so the lens
holder is on top of the spanner wrench (see figure below). This will prevent dust and debris from the threads
from falling on the lens as the lens retaining ring is tightened. Tighten until snug.
11. Inspect the completed assembly by using the methods described earlier in this section.
12. Verify that the top and bottom seals are properly installed in the lens holder.
Seals