Boss BV9562B Operator's Manual download pdf (Page 25)

OPERATOR’S MANUAL FOR LS SERIES

To remove lens for replacement

or cleaning loosen the friction

set screw on the main lens

housing holding the lens tube in

place. After loosening set screw

the lens tube should slide out of

the housing. Separate the lens

tube from the nozzle like the

illustration above.

Your laser tool box came with a

tool for removing the slotted

ring nut. The tool looks more

like a scraper than a screw

driver. Its width is designed to

fit inside the lens tube and fill

the slots. Be careful not to let

the blade tip slip and scratch

the lens.

Once the slotted ring is out, the rubber washer will keep the lens pressed against the

laser tube. Using a pencil with eraser, insert the eraser end into the laser tube and

push out the lens. Both lens and washer will fall out the large end.

At this point the lens can be replaced or cleaned. Different size lens can be inserted as

well, just be aware that a 4” lens has a different focus point than a 2” lens. The beam

width increases with focal length and may require a nozzle with a larger opening.

Handle the lens carefully, using acetone or lens cleaner to clean the flat side. Lens

paper works well and should show a brown residue after cleaning.

Make sure to place the flat side down towards the working platform when re-

assembling, curved side always faces the laser beam. Lens first, washer and then ring

nut. Don’t over tighten ring nut, just snug it up against the washer, and then a quarter

turn more.

Burned lenses are a common problem for new users of any laser machine. Make sure

to clean it often, especially if cutting on a regular basis. Kept clean a lens will last a long

time.

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Boss BV9562B Operator's Manual Page 25