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1.17. AVOID DANGEROUS ENVIRONMENTS.

Do Not operate this equipment in elevated areas without using fall protection equipment.

Certain applications of this equipment may require the use of scaffolding. Use of scaffolding

creates hazardous situations such as tripping and fall hazards which can result in serious injury

or death to operating personnel. Consult OSHA 29 CFR 1910 Subpart D.

1.18. AVOID DANGEROUS ENVIRONMENTS.

Do Not blast objects that are not properly secured. The blast operation can cause the blasted

object to shift or move. Extremely large objects to be blasted can create a crush hazard to

operating personnel which can result in serious injury or death. Properly secure the object to be

blasted.

1.19. AVOID DANGEROUS ENVIRONMENTS.

Do Not blast objects used to store flammable materials. The blast operation can cause sparks

which can ignite fumes or residual flammable materials inside enclosed containers which can

explode resulting in serious injury or death to operating personnel.

1.20. ELECTRICALLY GROUND EQUIPMENT.

Static electricity is generated by the abrasive flow through the blast hose. To minimize chance

of static electrical shock to operating personnel only use static dissipating blast hose and install

a grounding strap on the abrasive blaster. See Section 5.9.

1.21. MAINTAIN VESSEL INTEGRITY.

Do Not operate this equipment with the pressure vessel damaged, or with any part of it worn or

damaged. Do Not operate this equipment in a condition that may cause failure of the pressure

vessel. See sections 1.22 through 1.32 below.

An abrasive blaster is a Pressurized Vessel. Alterations, damage, or misuse of the pressure
vessel can result in rupturing. Damaged or incorrect components used on the abrasive blaster
can result in rupturing. The compressed air inside a pressurized vessel contains a dangerously
high level of energy which can propel objects and cause serious injury or death.

1.22.

NEVER OPERATE OVER MAXIMUM WORKING PRESSURE.

Do Not operate this equipment above maximum allowable working pressure (MAWP) at
maximum operating temperature (°F) shown on the ASME nameplate attached to the vessel.
See Section 2.2 and 8.1.

1.23.

INSTALL PRESSURE RELIEF DEVICE.

Do Not operate this equipment without a pressure relief device in place. The ASME Code
requires that all vessels be equipped with pressure relief devices prior to installation. The
pressure relief device must be set at the maximum allowable working pressure of the abrasive
blaster. See the ASME nameplate attached to the vessel typically located above the handway.
See Section 3.11 for information regarding the pressure relief valve.

1.24. NEVER OPERATE BEYOND ALLOWABLE TEMPERATURE RANGE.

Do  Not  operate  this  equipment  above  the  maximum  allowable  temperature  at  the  allowable
pressure  or  below  the  minimum  design  metal  temperature  (MDMT)  shown  on  the  pressure
vessel  nameplate.  The  characteristics  of  the  pressure  vessel  metal  are  weakened  when  the
temperature is outside the operating range. Operating the pressure vessel outside of allowable
temperature range can result in rupturing and cause serious injury or death.