Learn about the proper start up and shut down procedures to keep your Dustless Blaster performing its best.
Why it's vital:
Using the correct procedure to pressurize and depressurize the system is very important. It will prevent media and water from flowing backwards through the system, which can cause other parts to fail.
When you're starting the system up:
Once you have the water and abrasive in the blast pot, and your compressor is on, follow these steps to pressurize the pot.
- Make sure air inlet valve and blowdown valve are closed.
- Gently open compressor service valve.
- Open the air inlet valve slowly. Throwing it wide open and sending a huge burst of compressed air into the machine can cause unnecessary wear on the system.
When you're shutting the system down:
- Make sure to leave the compressor running.
- Close compressor service valve.
- Close the air inlet valve under the blast pressure regulator.
- Open the blow down valve and let the pot fully depressurize.
- Turn the compressor off.
Air always flows in the path of least resistance. If you turn the compressor off first, the pressure in the pot is trying its best to get out. Air, media and water can go up the black air hose in the wrong direction. That debris could potentially go through the regulator and end up in the small filter regulator, causing your Parker valve to fail.
If your Parker valve needs maintenance, check out the article here.
If you need to buy replacements, check out the following from our online store:
- Replacement Parker valve (pneumatic)
- Replacement Parker valve (electric)
- Parker valve repair kit (pneumatic)
Following proper procedures will prevent glass from entering the small filter regulator on the control box, and/or blast pressure regulators failing.
Example of glass in filter regulator on control box:
Purging Water from the System:
The filter regulator's job is to limit the incoming air pressure, and to filter out any debris or moisture before it can get into the control box.
The filtered moisture and debris will collect at the bottom of the bowl, where it can be vented. Keep the screw cracked open so the moisture can vent continuously.
Make sure you do the same thing to your moisture trap. Every once in a while, these may clog with debris. You can simply open them up all the way for a second to clear the clogs.