AXXIOM Manufacturing, Inc. SCHMIDT, Operation And Maintenance Manual

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© 2013 Axxiom Manufacturing, Inc.
5.1 Popup with Eyebolt (abrasive inlet)
The blaster is filled with abrasive through the abrasive inlet at the top of the pressure vessel.
This opening is sealed by the popup head (#5) when it is pulled up against the gasket (#6) and
the blaster is pressurized. When the air inlet ball valve (#3) is opened, air will flow into the
blast vessel and the air pressure will compress and hold the popup against the gasket. See
Figure 5.2.
Pinch point hazard. Vessel pressurization will close the popup. Keep fingers clear of the popup
opening. Disconnect air supply prior to performing popup maintenance.
Figure 5.2 – Standard Popup Assembly & Internal Piping
5.2 Air Supply Connection
Air is supplied to the abrasive blaster through a hose connection at the air inlet crowfoot (#2).
The air supply hose connected to the abrasive blaster must be same diameter as the air supply
piping and rated at a minimum of 150psi operating pressure. See the drawings and parts lists in
Section 9.0 and refer to Sections 3.4 and 5.11.
5.3 Air Inlet Ball Valve (pressurize)
The air inlet ball valve (#3) is used to turn on and turn off the air flow to the abrasive blaster.
When the inlet ball valve is opened air flow will pressurize the Mini abrasive blaster (see Figure
5.2). The blowdown ball valve (#4) must be closed and the popup must be pulled up and held
against the popup gasket before opening the air inlet ball valve (see Section 5.4).
Note: The Mini blaster will automatically pressurize when the air inlet ball valve (#3) is
opened. The blaster must be manually depressurized thereafter. See Section 5.4 and 6.2.
The Mini abrasive blaster is a pressurized vessel. Propelled objects will cause serious injury or
death. Read and follow all pre-operation and operating procedures prior to pressurizing the
abrasive blaster. See Section 6.0 and 7.0.