AXXIOM Manufacturing, Inc. SCHMIDT 0.9 Cu. Ft User manual

Mini Abrasive Blasters 0.5 – 0.9 cu. Ft (TVII)
OPERATION AND MAINTENANCE MANUAL
JULY 2013
SAVE THIS MANUAL AND MAKE AVAILABLE
TO ALL USERS OF THIS EQUIPMENT!
Manual Part Number 7200-265
(Available for downloading from schmidtabrasiveblasting.com)
AXXIOM Manufacturing, Inc.
11927 S. Highway 6, Fresno, Texas 77545
800.231.2085 * 281.431.0581 * fax [phone]
Visit us at www.schmidtabrasiveblasting.com

2 © 2013 Axxiom Manufacturing, Inc.
WARNING
1. Any person intending to operate this equipment or any person intending to be in
the vicinity during its operation must receive proper training from his/her
supervisor, employer and/or supplier. If this equipment is to be leased or rented,
the supplier must assure that the lessee or renter has received proper training
before the lessee or renter takes possession of the equipment. Consult Axxiom
Manufacturing, Inc.
2. Any person authorized to operate this equipment or any person intending to be
in the vicinity during its operation and who is not capable of reading and
understanding this manual must be fully trained regarding the Rules for Safer
Operation and all operating procedures, and must be made aware of all the
Dangers, Warnings, and Cautions identified herein. Consult Axxiom
Manufacturing, Inc.
3. Do Not operate any abrasive blaster or blast equipment before reading and
completely understanding all the warnings, operating procedures and
instructions, and the Rules for Safer Operation contained in this manual.
4. Do Not operate any abrasive blaster or blast equipment without following the
Rules for Safer Operation and all the operating procedures and instructions.
Failure to properly use blast equipment could result in serious injury or death.
5. Do Not perform any maintenance on any abrasive blaster or blast equipment
while it is pressurized. Always depressurize the abrasive blaster vessel before
loading abrasive or performing any maintenance.
6. Do Not use abrasives containing free silica. Silica can cause silicosis or other
related respiratory damage. All operators must wear personal protective
equipment for all abrasive blasting operations. Observe all applicable local,
state and federal safety regulations in conjunction with airline filters and
respiratory protection. Reference OSHA 29 CFR 1910.134.
7. Do Not enter areas during abrasive blasting operations without breathing
protection. All personnel in the vicinity of abrasive blasting operations should
wear NIOSH approved air fed respirators, hoods or helmets.
8. Do Not modify or alter any abrasive blaster, blast equipment or controls thereof
without written consent from Axxiom Manufacturing, Inc.
9. Do Not use bleeder type deadman valves on any Schmidt® abrasive blaster. The
use of A-BEC, Clemco or a similar bleeder type deadman valve can cause
unintentional start-up without warning, which can result in serious personal
injury.
10. Do Not sell, rent, or operate abrasive blasters without remote controls. OSHA
regulations require remote controls on all blast machines. Failure to use remote
controls can cause serious injury or death to the operator(s) or other personnel
in the blasting area. Reference OSHA 29 CFR 1910.244(b).
11. Do Not repair or replace any portion of Schmidt® equipment using
components that are not Schmidt® original factory replacement parts. Use of
replacement components that are not Schmidt® original factory replacement
parts may result in equipment failure which can result in serious personal
injury and in addition will void all warranties.

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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 com
p
ressed 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”.
)
Depressurize
d
S
y
stem
An abrasive blaster that is pressurized only when the deadman activates the blast
o
p
eration. The blaster automaticall
y
de
p
ressurizes when the deadman is released.
Pressurize
d
S
y
stem
An abrasive blaste
r
that is automatically pressurized when the air inlet
b
all valve is
o
p
ened. The blaster remains
p
ressurized 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 “de
p
ressurize”.
)
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 o
p
eration ma
y
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 (SiO2) which can be found in
many natural abrasives and other substances. Breathing silica dust can cause
res
p
irator
y
diseases such as silicosis.
(
Also referred to as cr
y
stalline silica
)
Instructions for use of manual sections

4 © 2013 Axxiom Manufacturing, Inc.
Listed below are the warning decals and the corresponding hazards related to this equipment. Refer to
Figure 0.1(a) and 0.1(b) for images of the warning decals. Refer to Figure 0.2(a) and 0.2(b) for the
locations of these warning decals on the abrasive blaster.
No. Qty. Part no. Description Hazard
1. 1 7031-001 Medium “Schmidt” Not Applicable
2. 1 7031-054
“Warning”
Airborne particle and
loud noise hazard.
Airborne particles and loud noise from blast
nozzle and blowdown can cause injury and
loss of hearing. Wear approved eye and ear
protection. See Section 1.0 and 3.10.
3. 1 7031-007A “Danger”
Pressurized vessel.
Propelled objects will cause serious injury or
death. Depressurize vessel prior to performing
any maintenance. See Section 6.2.
4. 1 7031-057
“Warning”
Read manual before
using this machine.
Read and understand operator’s manual
before using this machine. Failure to follow
operating instructions could result in injury or
damage to equipment. See Section 1.0.
5. 1 7031-077 “Warning”
Pinch point hazard.
Vessel pressurization will close popup.
Closing popup can pinch and crush. Keep
hands and fingers away from popup.
6. 1 7034-001
Welded “Warning” plate
General hazard and
advisory notes.
Steel “Warning” plate welded to pressure
vessel which is a general list of required
actions to take before and during the
operation of this equipment. See Section 1.0.
1) 7031-001 2) 7031-054
3) 7031-007A 4) 7031-057
Figure 0.1(a) – Warning decal summary
0.0 Warning Decal Identification and Location

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© 2013 Axxiom Manufacturing, Inc.
5) 7031-077
6) 7034-001
Figure 0.1(b) – Warning decal summary (continued)

6 © 2013 Axxiom Manufacturing, Inc.

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© 2013 Axxiom Manufacturing, Inc.
Section Page
0.0 Warning Decal Identification and Location 4
1.0 Rules for Safer Operation 8
2.0 Specifications and General Information 15
3.0 Installation Requirements and Personal Protective Equipment 18
4.0 Abrasive Blast System General Operation 24
5.0 Mini Blast System General Operation 25
6.0 Pre-operation Procedures 31
7.0 Operating Instructions 34
8.0 Maintenance and Inspection Instructions 38
9.0 Drawings and Parts Lists 43
10.0 Recommended Spare Parts Lists 51
11.0 Troubleshooting 52
12.0 Warranty and Reference Information 55
13.0 Blasting Data Tables 60
Table of Contents

8 © 2013 Axxiom Manufacturing, Inc.
1.1. GENERAL RULE FOR SAFER OPERATION.
SCHMIDT® ABRASIVE BLASTERS HAVE BEEN DESIGNED TO BE SAFE WHEN
USED IN THE PROPER MANNER. ALL ABRASIVE BLASTERS ARE POTENTIALLY
DANGEROUS IF ALL SAFETY PRECAUTIONS ARE NOT RIGOROUSLY FOLLOWED.
PROPER TRAINING IS REQUIRED BEFORE OPERATION. PROPER PROCEDURES
MUST BE FOLLOWED. THE ABRASIVE BLASTER AND ALL COMPONENTS MUST
BE PROPERLY MAINTAINED. FAILURE TO OPERATE, SERVICE AND MAINTAIN
THE ABRASIVE BLASTER AS SET FORTH IN THIS MANUAL MAY CAUSE INJURY
OR EVEN DEATH TO ANY PERSON USING, SERVICING OR IN THE VICINITY OF
THE ABRASIVE BLASTER.
THIS MANUAL IDENTIFIES POTENTIAL HAZARDS BY DANGER, WARNING, AND
CAUTION SYMBOLS. HOWEVER, ALL THE RULES, PROCEDURES AND
RECOMMENDATIONS MUST BE FOLLOWED. FAILURE TO OPERATE PROPERLY IS
VERY LIKELY TO PLACE PERSONS AND PROPERTY AT HIGH RISK OF DAMAGE,
INJURY OR EVEN DEATH.
ABRASIVE BLASTERS AND THE ABRASIVE BLAST OPERATION ARE
POTENTIALLY DANGEROUS IF ALL SAFETY PRECAUTIONS ARE NOT FOLLOWED.
FAILURE TO OPERATE THE ABRASIVE BLASTER WITHOUT FOLLOWING ALL THE
RULES FOR SAFER OPERATION MAY RESULT IN SERIOUS INJURY OR DEATH TO
OPERATING PERSONNEL OR PERSONS IN THE OPERATING VICINITY.
1.2. KNOW YOUR EQUIPMENT.
Do Not operate this equipment in a manner other than its intended application (see Section 4.0).
Do Not operate this equipment or any other Schmidt® equipment without following the Rules
for Safer Operation and all the operating procedures and instructions. Learn the applications
and limitations as well as the specific potential hazards related to this machine. Failure to do so
could result in serious injury or death.
1.3. RECEIVE PROPER TRAINING.
Do Not operate this equipment unless you have received operational and maintenance training.
Begin by thoroughly reading and understanding this operation and maintenance manual and all
included information. Consult an authorized Schmidt distributor or Axxiom manufacturing, Inc.
1.4. PROTECT YOUR FEET.
Do Not operate this equipment without wearing OSHA approved foot protection. Observe all
applicable local, state and federal regulations. See Section 3.10 and OSHA 29 CFR 1910.136.
Heavy objects can shift while being blasted and may fall on operators. All operators and
personnel in the vicinity must wear OSHA approved foot protection during the operation of this
equipment. See Section 3.10 and OSHA 29 CFR 1910.136.
1.0 Rules for Safer Operation

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© 2013 Axxiom Manufacturing, Inc.
1.5. PROTECT YOUR EYES.
Do Not operate this equipment without wearing OSHA approved safety glasses. Observe all
applicable local, state and federal safety regulations. See Section 3.10 and OSHA 29 CFR
1910.133.
When filling the blast vessel and during the blast operation, abrasive can be blown in the face
and eyes of operators. All operators and personnel in the vicinity must wear OSHA approved
safety glasses during the operation of this equipment. See Section 3.10 and OSHA 29 CFR
1910.133.
1.6. PROTECT YOUR LUNGS.
Do Not operate this equipment without wearing OSHA approved respiratory protection.
Abrasive blasting produces dust contaminated with toxic substances from the abrasive used, the
coating being removed, and the object being blasted. This dust may contain silica which can
cause severe and permanent lung damage, cancer, and other serious diseases. Do Not breathe
the dust. Do Not rely on your sight or smell to determine if dust is in the air. Silica and other
toxic substances may be in the air without a visible dust cloud. If air-monitoring equipment for
silica is not provided at the worksite, then all personnel MUST wear appropriate respiratory
protection when using or servicing this equipment. Breathing air supplied to respirators must be
of acceptable quality. Consult your employer and OSHA regarding the appropriate respiratory
protection and breathing air quality. See Sections 3.9, 3.10, and OSHA 29 CFR 1910.134.
Abrasive blasting produces dust which may contain silica and other toxic substances that can
cause severe and permanent lung damage, cancer, and other serious diseases if inhaled. All
operators and personnel in the vicinity must wear OSHA approved respiratory protection during
the operation of this equipment See Sections 3.9, 3.10, and OSHA 29 CFR 1910.134.
1.7. BREATHING AIR QUALITY.
Do Not use breathing air that does not meet OSHA Class D standards. Use extreme caution
when selecting a source of breathing air. Breathing air provided by an oil-lubricated air
compressor can contain carbon monoxide; therefore, a carbon monoxide detector is required
(See Section 3.10). Carbon monoxide can be in the compressed air produced by an oil-
lubricated air compressor when it is operated at extremely high temperature; therefore a high
temperature alarm is required to alert the operators when this condition exists. See Section 3.9
and reference OSHA 29 CFR 1910.134(i).
Extreme caution must be taken when connecting to factory air sources. Factories can have
sources of compressed gases such as nitrogen which is fatal if used as a breathing air source.
Verify that the air source is breathable air.
Breathing air must meet OSHA Class D standards. Use of breathing air sources that do not meet
Class D standards can cause asphyxiation and result in death. Verify that all air sources are
breathable quality and use a high-temperature alarm and a carbon monoxide monitor when
required. See Sections 3.9, 3.10 and OSHA 29 CFR 1910.134(i).
Enclosed blast areas must be ventilated to reduce airborne dust to an acceptable level as
required by OSHA 29 CFR 1910.1000.

10 © 2013 Axxiom Manufacturing, Inc.
1.8. PROTECT YOUR HEARING.
Do Not operate this equipment without wearing OSHA approved hearing protection. Observe
all applicable local, state and federal safety regulations. See Section 3.10 and refer to OSHA 29
CFR 1910.95.
Loud noise is produced by the blast nozzle and the blowdown operation of this equipment. All
operators and personnel in the vicinity must wear OSHA approved hearing protection during
the operation of this equipment. See Section 3.10 and refer to OSHA 29 CFR 1910.95.
1.9. PROTECT YOUR PERSON
Abrasive blasting produces dust contaminated with toxic substances from the abrasive used, the
coating being removed, and the object being blasted. All blast operators and other personnel
involved in the blast operation or in the vicinity of the blast operation should wear protective
clothing. The protective clothing should be disposable or washable work clothes that should be
removed at the worksite so that contaminated dust is not transferred into automobiles or homes.
See Section 3.10 and refer to OSHA 29 CFR 1910.94 and 1910.134.
1.10. ADHERE TO ALL REGULATIONS.
Do Not operate this equipment without observing all local, state, and federal safety regulations
including, but not limited to, OSHA (Occupational Health and Safety Administration).
1.11. STAY ALERT.
Do Not operate this equipment when you are tired or fatigued. Use caution and common sense
while operating and/or performing maintenance on this equipment.
1.12. DO NOT USE DRUGS, ALCOHOL, or MEDICATION.
Do Not operate this equipment while under the influence of drugs, alcohol, or any medication.
1.13. PROTECT BYSTANDERS.
Do Not allow blast equipment operators and other personnel to enter the vicinity of the blast
operation without providing respiratory protective equipment that meets OSHA regulations. If
dust concentration levels exceed the limitations set in OSHA 29 CFR 1910.1000 then
respirators are required.
1.14. KEEP CHILDREN AND VISITORS AWAY.
Do Not allow children or other non-operating personnel to contact this equipment or the
connecting hoses and cords. Keep children and non-operating personnel away from work area.
1.15. AVOID DANGEROUS ENVIRONMENTS.
Do Not operate this equipment without familiarizing yourself with the surrounding
environment. The blast operation creates high level of noise which may prevent the operator
from hearing other possible dangers (i.e. traffic or moving equipment). In such situations a
stand-by watch person may be necessary to protect against injury to personnel.
1.16. AVOID DANGEROUS ENVIRONMENTS.
Do Not use this equipment in areas cluttered with debris. Debris in the work area can create
tripping hazards which can cause the operator to loose control of the blast hose and result in
injury to operating personnel. Keep work area clean and well lit. When working at an elevated
location, pay attention to articles and persons below.

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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.

12 © 2013 Axxiom Manufacturing, Inc.
1.25. ASME NAMEPLATE REQUIRED.
Do Not operate this equipment if the ASME pressure vessel nameplate is missing. Contact
Axxiom Manufacturing, Inc. for technical support.
1.26. DO NOT MODIFY VESSEL.
Do Not modify or alter any abrasive blaster, blast equipment, or controls thereof without
written consent from Axxiom Manufacturing, Inc. Do Not weld, grind, or sand the pressure
vessel. It will not be safe to operate. Non-authorized modifications could lead to serious injury
or death. Non-authorized modifications will void the warranty and may void the ASME/NB
integrity.
1.27. DO NOT HAMMER ON VESSEL.
Do Not hammer on or strike any part of the pressure vessel. Hammering on the pressure vessel
can create cracks and cause rupturing.
1.28. FIRE DAMAGE NOTICE.
Do Not operate if the pressure vessel has been damaged by fire. If damaged, take out of service
immediately and have it inspected and/or repaired by a qualified facility. Contact Axxiom
Manufacturing, Inc. for technical support.
1.29. INSPECT VESSEL REGULARLY.
Do Not operate this equipment with damage to the pressure vessel. It is not safe. Inspect outside
and inside of the pressure vessel regularly for corrosion or damage (i.e. dents, gouges or
bulges). If damaged, take out of service immediately and have it inspected and/or repaired by a
qualified facility. Contact Axxiom Manufacturing, Inc. for technical support. See Section 8.0.
1.30. CHECK FOR LEAKS IN VESSEL.
Do Not operate this equipment if there is a leak in the pressure vessel. If leaking, take out of
service immediately and have it inspected and/or repaired by a qualified facility. Contact
Axxiom Manufacturing, Inc. for technical support.
1.31. NEVER MODIFY BLOWDOWN.
Do Not connect the blowdown on this equipment onto a common header with any other unit of
any description, or any other source of compressed air, without first making sure a check valve
is used between the header and this unit. Do Not install this equipment sharing piping with
another unit of higher discharge pressure and capacity. A safety hazard could occur in the form
of a back-flow condition.
1.32. DEPRESSURIZE VESSEL BEFORE PERFORMING MAINTENANCE.
Do Not remove, repair, or replace any item on this equipment while it is pressurized. Do Not
attempt to perform maintenance or load abrasive while this equipment is pressurized or is even
capable of being pressurized. This means the inlet ball valve should be closed and the air supply
should be shut off or disconnected. Anytime the manual blowdown valve is closed it should be
assumed that the abrasive blast vessel is pressurized.
An abrasive blaster is a Pressurized Vessel. The compressed air inside a pressurized vessel
contains a dangerously high level of energy which can propel objects and cause serious injury
or death. Depressurize vessel before performing any maintenance. See Section 6.2.

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1.33. ALWAYS USE REMOTE CONTROLS.
Do Not sell, rent, or operate abrasive blasters without remote controls. OSHA regulations
require remote controls on all abrasive blasters. All abrasive blasters must be equipped with
automatic (deadman) type remote controls (either pneumatic or electric). Failure to use remote
controls can cause serious injury or death to the operator(s) or other personnel in the blasting
area. Reference OSHA 29 CFR 1910.244(b).
1.34. NEVER USE BLEEDER TYPE DEADMAN VALVES.
Do Not use bleeder type deadman valves on any Schmidt® abrasive blaster. The use of A-BEC,
Clemco, or a similar bleeder type deadman valve can, without warning, cause unintentional
start-up which can result in serious personal injury. A particle of dirt from the air hose can plug
the bleed hole in the deadman valve and cause the blast outlet to turn on.
1.35. CHECK FOR DAMAGED PARTS.
Do Not use this equipment with damaged components. Damaged components can fail during
operation and result in serious injury or death to operating personnel. Periodically check all
valves, hoses, and fittings to see that they are in good condition. Repair any component that
shows any sign of wear or leakage. See Section 8.0.
1.36. ALWAYS USE SAFETY PINS ON HOSE COUPLING CONNECTIONS.
Do Not use this equipment without hose coupling safety pins in place and hose whip checks
installed on all air and blast hoses. All blast hose couplings and air hose couplings have pin
holes that must be safety pinned to protect against accidental disconnections. Accidental hose
disconnection can cause serious injury or death. See Sections 5.11 and 8.7.
1.37. ALWAYS USE CORRECT REPLACEMENT PARTS AND ACCESSORIES.
Do Not use replacement parts or accessories that are not rated for pressures equal to or higher
than the abrasive blaster’s operating pressure. Improper hoses and/or fittings used on, or
connected to the abrasive blaster can rupture and cause serious injury or death.
Do Not use replacement parts that are not Schmidt® original factory replacement parts. Non-
original parts may not fit properly and can cause equipment damage and/or failure which can
result in serious injury to operating personnel. Consult Axxiom Manufacturing, Inc.
Use of replacement components that are not Schmidt® original factory replacement parts may
result in equipment failure which can result in serious injury to operating personnel.
1.38. ALWAYS USE CORRECT PRESSURE RATED ACCESSORIES.
Do Not use air reservoirs or moisture separator tanks that are not rated for use in compressed air
applications. Air reservoirs and moisture separator tanks larger than 6 inches inside diameter
must have an ASME code stamp.
An air reservoir or moisture separator tank is a Pressurized Vessel. The compressed air inside a
pressurized vessel contains a dangerously high level of energy which can explode propelling
objects and result in serious injury or death to operating personnel. Air reservoirs and moisture
separator tanks must be ASME coded tanks.

14 © 2013 Axxiom Manufacturing, Inc.
1.39. NEVER AIM BLAST NOZZLE TOWARDS ANY PERSON.
Do Not aim the blast nozzle towards yourself or any person. System malfunction can cause
accidental start up and result in injury to personnel.
1.40. NEVER USE ABRASIVE NOT INTENDED FOR BLAST EQUIPMENT.
Do Not use abrasive blast media containing free silica. Silica can cause silicosis or other related
respiratory damage. Verify that the abrasive is intended for use in blasting equipment. Personal
protective equipment, including airline filters and respirators, must be used for all abrasive
blasting operations. Observe all applicable local, state and federal safety regulations. See
Section 3.8, 3.10, and reference OSHA 29 CFR 1910.134.
1.41. CHECK ABRASIVE FOR DEBRIS.
Do Not use blast abrasive that contains trash or other debris. Trash or debris can create a
blockage and cause equipment malfunction. Screen recycled abrasive to remove trash.
1.42. STOP OPERATION IMMEDIATELY IF ANY ABNORMALITY IS DETECTED.
Do Not operate this equipment if anything abnormal is seen during operation. Stop operation
immediately for inspection. See Section 8.0.
1.43. DO NOT OVERLOAD THE LIFT EYES.
Do Not load the lifting eyes above the rated capacity. Do Not lift the blast vessel by any point
other than the lifting eyes or designated lift points. Do Not lift the blast vessel while it is
pressurized. See Section 2.6.
1.44 DO NOT TRANSPORT BLAST EQUIPMENT LOADED WITH ABRASIVE.
Do Not attempt to roll portable blasters with abrasive inside. The additional weight of the
abrasive can cause loss of control of the blaster while moving which can result in injury to
operating personnel.
1.45. MAINTAIN WARNING DECALS.
Do Not remove, cover, obstruct, or paint over any warnings, cautions, or instructional material
attached. Warning decals must be installed, maintained, and located to be visible and with
enough light for legibility. See Section 0.0 and 8.12.
1.46. SAVE THIS OPERATION AND MAINTENANCE MANUAL.
Refer to this operation and maintenance manual as needed as well as any additional information
included from other manufacturers. Never permit anyone to operate this equipment without
having him/her first read this manual and receive proper training. Make this manual readily
available to all operating and maintenance personnel. If the manual becomes lost or illegible
replace it immediately. This operation and maintenance manual should be read periodically to
maintain the highest skill level; it may prevent a serious accident.
1.47. SAFETY REFERENCES
See Section 12.4 for safety information sources and contact information. Use these sources to
obtain additional information regarding all aspects of blast operation safety.

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© 2013 Axxiom Manufacturing, Inc.
2.1 Notes to Distributors and Owners
2.1.1. Verify that the deadman, twinline (or cords), and the operation and maintenance manual
are included with the abrasive blaster when it is received. Verify that the deadman,
twinline (or cords), and the operation and maintenance manual are included with the
abrasive blaster when it is delivered to the purchaser.
2.1.2. This equipment is intended for knowledgeable and experienced users. No person or
persons should be allowed to operate this equipment without first receiving proper
training in abrasive blasting operation and use of this equipment.
2.1.3. Immediately notify Axxiom Manufacturing, Inc. of any instances of use of this
equipment in any manner other than the intended application. See Section 4.0.
2.1.4. Only qualified personnel should load and unload this equipment for shipping. Slings or
other lifting devices must only be attached to the designated lifting points. See the
lifting diagrams shown in Section 2.6.
2.1.5. For further information on options and accessories available for Schmidt® abrasive
blasters visit the Axxiom website or contact us:
Axxiom Manufacturing, Inc.
11927 South Highway 6
Fresno, Texas 77545
Phone: [phone]
Fax: [phone]
Website: www.schmidtabrasiveblasting.com
2.2 Abrasive Blaster Operational Specifications
Maximum Working Pressure 125 or 150 psig @ 250°F (see ASME nameplate)
Maximum External Pressure Not designed for external pressure
Minimum Metal Temperature -20°F @ 125 or 150 psig (see ASME nameplate)
Air Consumption See Section 13.0 table 1
Abrasive Consumption See Section 13.0 table 2
Blast Hose Size See Section 13.0 table 3
Electrical requirements See Section 3.7
Abrasive Capacity 0.5 & 0.9 cu. ft
2.3 Important Reference Numbers
Fill in the Abrasive Blaster model number, serial number, and other information in the blank
spaces below. This information will be needed for reference when service, maintenance, or
technical support is required.
Blaster Model Number
Blaster Serial Number National Board Number
Blaster Piping Size
2.0 Specifications and General Information

16 © 2013 Axxiom Manufacturing, Inc.
2.4 Vessel Information
2.4.1. All pressure vessels used in Schmidt® Abrasive Blasters are manufactured in strict
accordance with the provisions of the ASME Code Section VIII, Div. 1.
2.4.2. In order to maintain the high level of quality and quality control used in the manufacture
of this vessel, it is required that any and all welded repairs to this vessel be performed
by a reputable shop holding a National Board “R” Stamp and/or an ASME “U” stamp,
depending on state or city law. Welding on the vessel performed by welders not
properly qualified per the ASME Code may void the ASME/NB integrity of the vessel.
2.5 Notes
2.6 Mini Abrasive Blaster Lifting Diagrams and Dimensional Specifications
A Mini Abrasive Blaster is a Pressurized Vessel. The compressed air inside a pressurized vessel
contains a dangerously high level of energy which can propel objects and cause serious injury
or death. Depressurize vessel and empty of abrasive before lifting, moving, or transporting.

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Figure 2.6– Mini Abrasive Blaster Lifting Diagram

18 © 2013 Axxiom Manufacturing, Inc.
Carefully read and follow all the recommendations regarding the abrasive blast system installation
requirements. Improper installation can result in equipment malfunction and significant lost time
expenses. Consult an authorized Schmidt® distributor or Axxiom Manufacturing, Inc.
3.1 Abrasive Blast System Installation Location
i. Portable units: Units equipped with handles and wheels are portable and can be rolled to
locations where blast jobs are performed. Locate the unit to allow accessibility to the
handway and for ease of abrasive filling. Pay close attention to objects that may be in the
path of the pressure vessel exhaust air (depressurization). See Section 5.4 for system
depressurization.
ii. Stationary units: Units that will be installed in permanent locations require careful
consideration. Stationary units can be installed below an abrasive hopper with a support
structure that can limit access to the abrasive blast system. Install stationary blast systems in
a position that will allow access to the handway and the blaster piping. These areas must be
accessible to perform required maintenance. Pay close attention to objects that may be in the
path of the pressure vessel exhaust air (depressurization). See Section 5.4 for system
depressurization. An exhaust hose assembly can be installed on TVII Blast Systems to
direct the exhaust air into the blast room. Note: A long blowdown exhaust hose can
lengthen the blowdown time and also presents the possibility of blockage.
iii. Abrasive blasters 3.5cf and larger are provided with mounting holes in the bottom legs.
These holes can be used for securing the blaster to the floor or mounting structure.
3.2 Compressed Air Requirements (blast nozzle)
The blast nozzle size and blast pressure determine the compressed air requirements. Available
air flow capacity and/or air compressor size must be considered before selecting the blast
nozzle size. An air source dedicated to the abrasive blast system is preferred to reduce system
pressure drops and back flow of air. If an existing air compressor will be used or a limited air
supply is available, then the blast nozzle must be selected based on these conditions. Be aware
that as the blast nozzle wears the air demand will increase. See Table 1 in Section 13.0 for air
consumption by nozzle size at various pressures. Note: 10cf and 20cf units can be upgraded to
two blast outlets and therefore, this option should be considered when determining compressed
air requirements.
3.3 Air Compressor Size
Air compressor size is crucial to the operation of the abrasive blast system. Blast nozzle
selection and desired productivity must be evaluated to determine the air flow requirements
prior to selecting the air compressor size. Sufficient air supply capacity is necessary to maintain
the system air pressure. Insufficient air flow capacity will result in reduced blast nozzle pressure
and lost productivity. The air compressor must be large enough to supply:
i. The sum of blast air requirements for each nozzle at the highest pressure that will be
used (see Section 13.0, Table 1).
ii. The 12 CFM breathing air supplied to each blast operator respirator. Note: Reference
OSHA regulations regarding requirements for breathing air, especially when an oil-
lubricated air compressor is used.
3.0 Installation Requirements and Personnel Protective Equipment

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3.4 Blast System Air Supply Line
The air supply hose and fittings must be rated at a minimum of 150 psi operating pressure. The
air supply hose from the air compressor to the blast unit should be at least the same diameter as
the air inlet piping (see Section 9.0). This size hose will be large enough to supply the required
airflow to operate the blast unit controls and each blast nozzle. See Sections 5.11 for further
information on air hose connection.
Note: If the abrasive blast system will be installed in a permanent location, the inlet connection
can be hard piped. Do Not install hard piping that is smaller than the piping size of the blast
system. Smaller piping size will reduce the air flow capacity. If other equipment will be using
the same source of air as the abrasive blaster, install a check valve at the air inlet. This will
protect against back flow of air pressure that can carry abrasive into the blast controls.
Hard piping connected to the abrasive blaster must be structurally supported so not to apply any
loading on the pressure vessel at the points of connection. Unsupported piping can create
bending loads at the connections on the pressure vessel and cause failure. Hard piping
connections to the pressure vessel must be designed and installed by qualified personnel
experienced with piping systems and the applicable codes pertaining to them.
External loading at piping connection can cause failure of the pressure vessel. Hard piping
connected to the pressure vessel must include supports to eliminate the possibility of applying a
load on the pressure vessel.
3.5 Blast System Air Pressure
The maximum allowable working pressure (MAWP) for the blast unit is stamped on the ASME
nameplate attached to the vessel. For most abrasive blast systems the MAWP is 150psig. Do
Not exceed the MAWP. An air pressure regulator can be installed to reduce air supply pressure
that is higher than the MAWP. To prevent air pressure backflow only use a non-relieving air
regulator. Air pressure backflow will carry abrasive from the blast vessel and contaminate the
blast control system. CRITICAL: Any inlet air valve or air pressure regulator added to the
system must have sufficient air flow capacity for proper operation of the blast system.
Insufficient air flow capacity will cause pressure drop in the blast system resulting in
equipment malfunction, abrasive backflow, and reduced blast productivity. Select a valve
that will operate with little or no pressure drop (5psi max.) at the required cfm air flow.
Installing an air pressure regulator allows the option of blasting at low pressure. When blasting
at low pressure the air supply to the deadman blast control system must be at least 80psig (see
Figure 5.4 and 5.5). The valves in the abrasive blast system are “spring closed” and therefore
require at least 80psig to operate properly. If the air pressure regulator is set below 80psig the
air supply to the blast controls must be taken upstream of the regulator.
3.6 Blast System Air Quality
Air quality is crucial to the operation of an abrasive blaster. Moisture and contaminants can
cause components to malfunction. Moisture condensation in a blast system causes abrasive flow
problems. Condensation occurs when the hot vapor-filled compressed air cools as it reaches the
abrasive blaster. Water droplets formed during condensation can be absorbed by the abrasive in
the blast vessel which can cause erratic flow to the abrasive valve. Therefore, a moisture
removal device installed for the blast system air supply is recommended (i.e. coalescing
moisture separator, air-cooled aftercooler or deliquescent dryer). Contact a local authorized
Schmidt® distributor or Axxiom Manufacturing, Inc. to locate one near you.
3.7 Electrical Requirements
On units equipped with electric blast controls the supply voltage is 12Vdc or 24Vac. The
maximum power required is:
1-outlet: 7 watts 1-outlet with abrasive cutoff: 14 watts
2-outlet: 14 watts 2-outlet with abrasive cutoff: 28 watts
Note: Insufficient electric power output will result in malfunctioning of the electric blast
control system. A power transformer or power supply can be used if the above voltages are not
readily available.

20 © 2013 Axxiom Manufacturing, Inc.
3.8 Abrasive Selection
Abrasive selection is likely the most difficult decision related to the blast operation. Choice of
abrasive is based on factors such as blast application type, desired finish and coating
requirements, characteristics of object to be blasted, cost and ability to recycle, available
equipment, safety, and environmental constraints.
There are many abrasives available that are either natural, manufactured, or processing by-
products. Abrasives are available in varying sizes, shapes, and hardness. These characteristics
determine the resulting effect on the surface to be blasted and limitations of its use. The effects
on the blasted surface are measured by its degree of cleanliness and the surface profile.
Standards and required levels of these measurements are established by organizations such as
Steel Structures Painting Council (SSPC), National Association of Corrosion Engineers
(NACE) and coating manufacturers. See Section 12.5 for contact information of these
organizations. Use these sources to obtain information regarding all aspects of surface
preparation and abrasive selection guidelines.
Schmidt® abrasive blasters are designed for high production open abrasive blasting with a
wide range of abrasives. It is the responsibility of the employer and operators to select the
proper abrasive. It is the responsibility of the employer to make certain that the abrasive
selected is safe to use for abrasive blasting.
Critical: Always obtain the Material Safety Data Sheet (MSDS) for the abrasive to be used.
The MSDS provides the chemical makeup of the abrasive. Do Not use abrasives containing
toxic materials. Refer to OSHA 29 CFR for acceptable limits of various toxic substances and
additional measures to be taken to protect operating personnel. Always use abrasives containing
less than 1% of crystalline silica. Always use a NIOSH approved respirator when handling,
loading and cleaning up abrasives. Organic substances which are combustible may only be used
in automated blast systems with ventilation that meets OSHA 29 CFR 1910.94.
3.9 Breathing Air Quality
All blast operators must be supplied with and required to use NIOSH approved air-fed
respirators. Breathing air supplied to these respirators must meet Grade D air quality standards
as specified by OSHA 29 CFR 1910.134(i) and the Compressed Gas Association Specifications
ANSI/CGA G-7.1. Consult these specifications when selecting a source of breathing air.
Breathing air must be clean, dry, contaminant-free, and provided at a pressure and volume
specified by NIOSH. Use NIOSH approved air filters on all sources of breathing air. See
Section 3.10.
Breathing air filters do not remove carbon monoxide or any other toxic gases. Use a carbon
monoxide monitor to detect unacceptable levels. Consult OSHA 29 CFR 1910.134(i).
Many sources of breathing air are available such as air cylinders, free-air pumps, oil-less air
compressors, and oil lubricated air compressors. The most commonly used is the same air
compressor that is used for the blast air which most often is oil lubricated. Breathing air
provided by an oil-lubricated air compressor can contain carbon monoxide and therefore
requires the use of a carbon monoxide detector (See Section 3.10). Carbon monoxide can be in
the compressed air produced by an oil-lubricated air compressor when it is operated at
extremely high temperature; therefore, a high temperature alarm is required to alert the
operators when this condition exists.
Oil lubricated air compressors can produce carbon monoxide. Carbon monoxide can cause
asphyxiation and result in death. Use a high-temperature alarm and a carbon monoxide monitor
when an oil lubricated air compressor is used to supply breathing air. Consult OSHA 29 CFR
1910.134(i).