Warning!

• Disconnect the engraver from power before cleaning.
• If your chiller has a separate manual for cleaning its internal pipes, follow the manual.
• If the chiller has antifreeze in it, DO NOT add citric acids/mild detergent or bleach into the liquid. ONLY do so if the chiller has distilled water in it.

With typical usage, the coolant should be clear for an extended period. For safety purposes, we recommend doing a thorough cleaning of the coolant tank at least once a year. If the coolant becomes visibly contaminated, discontinue work and clean the tank and pipe as instructed below.

Tools Needed:

• Funnel
• Citric acid/Mild detergent and bleach
• Distilled water/laser-safe coolant
• Clean Water

Step 1: Turn off and unplug the engraver.

Step 2:Access the chiller drain port and fully drain the coolant.

Step 3: If you have been using distilled water as the coolant:

1. Using a funnel, add a solution of clean, soft water with citric acids or a mild detergent and bleach through the chiller fill port.
2. Power on the chiller.
3. Run the chiller for about ten minutes to clear the system and drain the liquid.
4. Process a few cycles of refilling and draining to clear any remaining residue.
5. Once no debris or residue is being rinsed out with the water, refill the tank with distilled water.

Step 4: If you have been using laser-safe antifreeze,

1. Fully drain the chiller.
2. Using a funnel, fill the chiller with a solution of clean, soft water with citric acids or a mild detergent and bleach through the chiller fill port.
3. Power on the chiller.
4. Run the chiller for about ten minutes to clear the system and drain the liquid.
5. Process a few cycles of refilling and draining to clear any remaining residue.
6. Once no debris or residue is being rinsed out with the water, refill the tank with distilled water.