Section 2: Getting Started
MicroBlaster MB1006
Comco Inc.
2-6
Issue Date: September 2003
Basic Components of the MicroBlaster MB1006
Power Switch
The Power Switch is located on the left-hand side of the unit. It is the primary ON/OFF
switch for the unit. The Power Indicator will illuminate when the power is “ON”.
Handpieces
The handpieces, which hold the blasting nozzles, should be inserted into the holes in the
side of the workstation provided for this purpose.
Tank Select Switch
Located on the right side of the front panel, the Tank Select switch determines which
tank and nozzle will be used for blasting.
Air Pressure Regulator
The Air Pressure Regulator knob, located in the center of the front panel, controls the
MicroBlaster’s operating air pressure as indicated on the pressure gage located directly
to the left of it. Turn it clockwise to increase the blasting pressure or counterclockwise to
decrease.
NOTE:
The pressure will not decrease until the foot switch is depressed.
Pressure Gage
The Pressure Gage on the front of the unit indicates the air pressure in the abrasive
tank. Typically, operating pressure selected for the process will be between 40 psig and
185 psig.
Powder Flow Controls
The Powder Flow knobs control the amount of clean, abrasive-free air that is mixed with
the abrasive in the mixing chamber. Turning the knob clockwise increases the
concentration of media in the air stream. There are two controls, one for each tank.
Footswitch
The Footswitch (usually placed on the floor) activates the abrasive hose pinch and the
modulator for the selected tank, allowing abrasive to flow from the tank to the blasting
nozzle.
“Quick-Fill” or
Flapper Valves
The Flapper Valves are located on the top of the tank covers. They are used to fill the
tank with abrasive powder.
NOTE:
Only refill an abrasive tank after MicroBlaster Power
has been turned “OFF” and the unit has vented.
Pinch Assemblies
The Pinches are located on the rear panel of the MicroBlaster. The pinch squeezes the
blue poly hose in order to stop the flow of air and abrasive.