MicroBlaster MB1000 Section 3: Using the MicroBlaster
Comco Inc. 3-17 Issue Date: July 2016
Changing the Abrasive (cont’d)
3. Empty the remaining abrasive into a suitable waste container by tipping the machine
on its side. Alternately, slip the dust collector hose off the workstation and use it to
vacuum the inside of the tank and cover. Do not try to save this abrasive.
4. Wipe or vacuum off all abrasive on the tank top surface, threads, and inside cover.
5. Spray the tank threads with dry lubricant, if required (see Section 4).
6. Replace the tank cover. Tighten lightly by hand to seat the O-ring seal.
Note: The tank cover is designed to self-seal when the tank is pressurized.
Light hand tightening is all that is required when installing the tank cover.
Excessive tightening will lead to premature O-ring and thread wear.
7. Turn the Power “ON” to pressurize the unit. Hold the handpiece and depress the
footswitch for approximately 30 seconds to purge any remaining abrasive out of the
system.
8. Follow the directions in “Stopping - Refilling the Tank”, above.
Note: Always start the work shift with fresh abrasive powder. Powder left sitting
in an unpressurized machine over night can absorb moisture. This
contaminated powder can cause flow problems. Keep powder containers
sealed and stored in a cool, dry place.
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