21 | 29
www.raytools.net
BM114S SERIES 6KW Laser Cutting Head User Manual
The protective lens is a fragile part and need to be replaced after damage.
As shown in Figure 6.1, open the buckle, open the cover of protective lens, pinch the
two sides of the drawer-type lens holder and pull out the base of protective lens;
Remove the pressure washer of the protective lens , remove the lens after wearing
fingertips
Clean the lens, lens holder and seal ring. The elastic seal ring should be replaced if
damaged.
Install the new cleaned lens (Regardless of the positive or negative side) into the drawer
type lens holder.
Put the pressure washer of the protective lens back.
Insert the protective lens holder back to the laser processing head, cover the lid of the
protective lens and fasten the buckle.
5.2.2
Removal and Installation of Collimating Lenses
The collimating protective lenses are a fragile part and need to be replaced after damage.
Use a 2.5mm inner hexagon spanner to unscrew the screw of collimating protective lens
(as shown in figure 6.3);
Remove the gland of collimating protective lens, pinch the two sides of the drawer-type
Figure 6.3 — Take out collimating protective lens