AXXIOM Manufacturing, Inc. SCHMIDT, Operation And Maintenance Manual, Page: 3 / 60

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© 2013 Axxiom Manufacturing, Inc.
This manual contains information needed to operate and maintain a Schmidt® Abrasive Blaster. Read
this entire operations and maintenance manual before using the abrasive blaster. Pay close attention to
the
Rules for Safer Operation
(Section 1.0), and the Dangers, Warnings, and Cautions identified.
The purpose of safety symbols and explanations are to alert operators of the possible hazards and
explain how to avoid them. The safety symbols and explanations do not by themselves eliminate any
danger. However, following the instructions given and taking proper accident prevention measures will
greatly lower the risk of injury to personnel. Below are the three hazard levels as used in this manual.
WHITE LETTERS with RED BACKGROUND
DANGER: Indicates an imminently hazardous situation that, if not avoided, will result in death or
serious injury. This signal word is limited to the most extreme situations.
BLACK LETTERS with ORANGE BACKGROUND
WARNING: Indicates a potentially hazardous situation that, if not avoided, could result in death or
serious injury.
BLACK LETTERS with YELLOW BACKGROUND
CAUTION: Indicates a potentially hazardous situation that, if not avoided, may result in minor or
moderate injury. It may also be used to alert against unsafe practices that may cause property damage.
This manual contains terms that may be specific to the abrasive blast industry. Understanding these
terms will help operators understand the procedures and instructions given in this manual. All operators
must be familiar with the following terms and refer to them as needed while reading this manual.
Term Definition
Pressure
Vessel
A fabricated tank (or reservoir) that is part of the abrasive blaster which is filled
with compressed air and abrasive. (Also referred to as “blast vessel” or “vessel”.)
Pressurize To manually or automatically fill the abrasive blast vessel with compressed air.
Depressurize To manually or automatically release all the compressed air from inside the
abrasive blast vessel. (Also referred to as “blowdown”.)
Depressurized
System
An abrasive blaster that is pressurized only when the deadman activates the blast
operation. The blaster automatically depressurizes when the deadman is released.
Pressurized
System
An abrasive blaster that is automatically pressurized when the air inlet ball valve is
opened. The blaster remains pressurized when the deadman is released.
Blowdown
To manually or automatically release all the compressed air from inside the
abrasive blast vessel. (Also referred to as “depressurize”.)
Deadman
A manually operated valve or switch that allows remote starting and stopping of the
blast operation. [Also referred to as “deadman valve” (pneumatic blast controls) or
“deadman switch” (electric blast controls.)]
Popup
An air pressure operated valve that seals the abrasive inlet at the top of the pressure
vessel. Its operation may be manual or automatic.
Abrasive
A granular substance used in an air blast operation that is the means for blasting the
surface of an object. (Also referred to as abrasive blasting media.)
Silica
The crystalline chemical compound silicon dioxide (SiO
2
) which can be found in
many natural abrasives and other substances. Breathing silica dust can cause
respiratory diseases such as silicosis. (Also referred to as crystalline silica)
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