Clean and Replace the Focus Lens

You should check whether the focus lens is clean every week or at least every month, depends on how often you use the machine.

If the focus lens is getting dirty, please clean it immediately, otherwise, the laser firing on workpieces will be getting weak, and the focus lens itself will be easy to be scratched or even cracked.

Follow the steps below to clean the focus lens.

  1. Turn off the machine.
    Refer to Turn off the Machine for more information.

  2. Take out the focus lens module.
    Remove the screws first, remove the cover, and then pull out the module.

    IMPORTANT

    Please keep an eye on DIFFERENT curvature of the two sides of the lens. The lens must be put back in the same way, otherwise, the laser beam would not be converged properly.

    Remove the Screws

    Remove the Cover

    Pull out the Focus Module

  3. Clean the focus lens with a rubber dust blower and then a cotton swab dipped with alcohol.

    NOTE

    Please wipe the lens in just ONE direction, for example, from left to right, or from top to bottom.

  4. Put the focus lens module back in the welding gun.
    Push the module back in, set the cover back, and then tighten the screws.

If the focus lens is too dirty to clean up, or it has been scratched too much or cracked, please replace it with a new one.

Follow the steps below to replace the focus lens.

  1. Turn off the machine.
    Refer to Turn off the Machine for more information.

  2. Take out the old focus lens module.
    Remove the screws first, remove the cover, and then pull out the old module.

    IMPORTANT

    Please keep an eye on DIFFERENT curvature of the two sides of the lens. The new lens must be put back in the same way, otherwise, the laser beam would not be converged properly.

  3. Put a new focus lens module back in the welding gun.
    Push a new module back in, set the cover back, and then tighten the screws.

    New Focus Lens

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