# System Maintenance

## Reduce Fire Risk with a Clean Laser

* Cleaning the Fusion Pro is an excellent way to prevent fire with the laser.
* A buildup of cutting and engraving residue and debris is dangerous and can create a fire hazard in its own right.
* Keep your laser system clean and free of debris. 
* Regularly remove the Vector Cutting Table to clean any small pieces that have fallen through the grid.

## Cleaning the Optics

* Clean your laser optics periodically or if you notice dust buildup. 
* Accumulated contaminants like smoke or resin can reduce laser power and damage the lens.

{% hint style="success" %}
**When cleaning the optics, jogging the laser closer to the front of the machine will allow for easier access.**
{% endhint %}

### Cleaning the Lens

* The focus lens is contained within the lens tube. 
* The lens tube is a single assembly and is fairly easy to clean.
* Remove the lens tube from the machine for cleaning by unscrewing the captive screw on the front lens clamp using a screwdriver. 
* Hold the lens tube from the bottom while unscrewing the captive screw, as the tube may come out easily.

<figure><img src="/files/1dFnoipqZmh33zZFbYVG" alt=""><figcaption></figcaption></figure>

* Remove the captive screw, then the lens tube. Twist off the bottom cone piece to reveal the lens.

<figure><img src="/files/PilcjWdlFuV5KkvyfCDN" alt=""><figcaption></figcaption></figure>

* To clean the lens, use a high-quality cotton swab moistened with the optics cleaner supplied in the accessory kit. Please read the label on the bottle carefully.

<figure><img src="/files/lRKfWPjhzBA9PppTMrLL" alt=""><figcaption></figcaption></figure>

* Allow the optics to dry, then twist the cone piece securely back on to the bottom of the lens tube.

<figure><img src="/files/DqUXHVLIwDiETHtda8pf" alt=""><figcaption></figcaption></figure>

* Align the hole near the bottom of the lens tube with the air assist hole.&#x20;
* Ensure the top notch of the tube matches the insert on the assembly.
* &#x20;The tube should slightly shift when twisted. Wrap the clamp around the tube and tighten the screw.

<figure><img src="/files/wLUPh2y4gg7lSrDGUoVT" alt=""><figcaption></figcaption></figure>

<figure><img src="/files/IYWrx7b79LOjA9tC3uJ9" alt=""><figcaption></figcaption></figure>

### Cleaning the Mirror

* The mirror is located on the back side of the assembly and also has a simple cleaning process.&#x20;
* Start by opening the door latched onto the back of the assembly. The door will rotate counterclockwise to open.

<figure><img src="/files/YJK3eOofvjSI7jvNorPq" alt=""><figcaption></figcaption></figure>

* Next, twist the knob on the right side of the assembly counterclockwise to loosen the mirror, preparing it

  for removal

<figure><img src="/files/3gSRwlETcY8HBlrXlodA" alt=""><figcaption></figcaption></figure>

* Now remove the mirror from the assembly by sliding it out towards the back of the machine.

<figure><img src="/files/H5pYcnvhrDMaFFrEJUhB" alt=""><figcaption></figcaption></figure>

* To clean the mirror, use a high-quality cotton swab moistened with the optics cleaner supplied in the accessory kit. Please read the label on the bottle carefully.

<figure><img src="/files/fTgWtjwze6bbzABQvgoH" alt=""><figcaption></figcaption></figure>

* Tighten the securing knob and close the back door. Once the mirror is cleaned and dry, place it back into the assembly angled down towards the table.

{% hint style="success" %}
**Never use Alcohol or Hardware grade Acetone, they contain impurities which can damage the optics in your machine.**
{% endhint %}

## Replacing the Lens

* Replace the old lens with a new one by removing the lens tube from the machine.&#x20;
* Unscrew the captive screw on the front lens clamp using a screwdriver while holding the tube from the bottom.
* Insert the new lens tube and secure it properly.

<figure><img src="/files/c6QO5Ga9perGqr4GqSTH" alt=""><figcaption></figcaption></figure>

* Insert the new tube into the assembly, aligning the hole at the bottom with the air assist hole, and the notch at the top with the insert.&#x20;
* The tube should only shift slightly when twisted. Wrap the clamp around the tube and tighten the screw.

<figure><img src="/files/E29mWndA95IGaAXZyjFv" alt=""><figcaption></figcaption></figure>

## Cleaning the Exhaust Plenum

* Keep your exhaust blower in good shape. Clean the duct system often to get rid of debris.
* If you notice odors or smoke near the lens carriage, check the exhaust system for loose connections or blockages.
* Occasionally check the blower and duct work as shown in the following photos.

### Cleaning the Vents

Clean the vents inside the machine with a flexible or wire brush.

<figure><img src="/files/KEYHfiOazqPukiHM2He7" alt=""><figcaption></figcaption></figure>


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