Schmidt ADS 250 User manual

ACS/ADS AIRPREP SYSTEM
OPERATION AND MAINTENANCE MANUAL
August 2020
SAVE THIS MANUAL AND MAKE AVAILABLE
TO ALL USERS OF THIS EQUIPMENT!
Manual Part Number 7200-260 rev10-20
(Available for downloading from SchmidtAbrasiveBlasting.com)
Copyright © 2020 AXXIOM Manufacturing, Inc.
11927 S. Highway 6, Fresno, Texas 77545
800.231.2085 * 281.431.0581 * fax [phone]
Website Visit us at www.SchmidtAbrasiveBlasting.com Manual

2 Copyright © 2020 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.

Copyright © 2020 Axxiom Manufacturing, Inc. 3
This manual contains information needed to operate and maintain your AirPrep System. Read this entire
operations and maintenance manual before using your AirPrep System. Pay close attention to the Rulesfor
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 alone do not eliminate any danger. However,
following the instructions given and taking proper accident prevention measures will greatlylower 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.
WHITE LETTERS with BLUE BACKGROUND
NOTICE: Indicates that equipment could malfunction or potentially become damaged if certain
instructions are not followed.
This manual contains terms that may be specific to the abrasive blast industry. Understanding these terms
will help you understand the procedures and instructions given in this manual. Please familiarize yourself
with the following terms and refer to them as needed while reading this manual.
Glossary
Term Definition
Pressure
Vessel A fabricated tank (or reservoir) that is part of the AirPrep System which is filled with compressed air and deliquescent. (Also
r
eferred to as “separator tan
k
” or “vessel”.)
Separator
Tank A fabricated tank (or reservoir) that is part of the AirPrep System which is filled with compressed air and deliquescent. (Also referred to as “pressure vessel” or “vessel”.)
Pressurize To fill the AirPrep System vessel with compressed air manually or automatically.
Depressurize To release all the compressed air from inside the AirPrep System vessel manually or
automaticall
y
. (Also referred to as “blowdown”.)
Blowdown To release all the compressed air from inside the AirPrep System vessel manually or
automaticall
y
. (Also
r
efer
r
ed to as “depressurize”.)
Manual Use, Explanation of Safety Symbols, and Glossary

4 Copyright © 2020 Axxiom Manufacturing, Inc.
Listed below are the warning labels and the corresponding hazards encounteredwith this equipment. Referto Figures
0.1(a) and 0.1(b) for images of the warning decals. Refer to Figures 0.2(a), 0.2(b) and 0.2(c) for the locations of these
warning decals.
No. Qty. Part no. Description Hazard
1. 2 7031-019 Air Prep System Not Applicable
2A. 2
7031-033
7031-034
7031-035
7031-036
7031-037
7031-038
7031-051
7031-052
ADS 250
ADS 400
ADS 750
ADS 950
ADS 1200
ADS 1600
ADS 2000
ADS 2500
Not Applicable
2B. 2
7031-025
7031-026
7031-027
7031-028
7031-029
7031-030
7031-049
7031-050
ACS 250
ACS 400
ACS 750
ACS 950
ACS 1200
ACS 1600
ACS 2000
ACS 2500
Not Applicable
3. 1 7031-001 Medium “Schmidt” Not Applicable
4A. 2 7031-007A “Danger”
Pressurized Vessel
Propelled objects will cause serious injury or death.
Depressurize vessel prior to performing any
maintenance. See Section 6.2.
4B. 2 7031-007B “Danger”
Pressurized Vessel
Propelled objects will cause serious injury or death.
Depressurize vessel prior to performing any
maintenance. See Section 6.2.
5. 1 7031-017 Inlet Not Applicable
6. 1 7031-018 Outlet Not Applicable
7. 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.
8. 1 7031-081 Fill Daily Failure to lubricate air motor will result in motor
failure. See Section 5.7.
9. 1 7031-082 “Danger” Pressurized vessel
Handway Components
Propelled objects will cause serious injury or death.
Incorrect or damaged handway or manway cover
components can result in failure. See Section 6.5.
1) 7031-019 2A) 7031-XXX
Figure 0.1(a) – Warning decal summary (continued)
0.0 Warning Label Identification and Location

Copyright © 2020 Axxiom Manufacturing, Inc. 5
2B) 7031-XXX 3) 7031-001
4A) 7031-007A (4.5” x 8.5”) 4B) 7031-007B (3” x 6”)
5) 7031-017 6) 7031-018
7) 7031-057 8) 7031-081
9) 7031-082
Figure 0.1(b) – Warning decal summary

6 Copyright © 2020 Axxiom Manufacturing, Inc.
Figure 0.2(a) –Warning decal location for ACS 250-400 Portable Aftercooler
Figure 0.2(b) –Warning decal location for ADS 250-400 Portable Dryer

Copyright © 2020 Axxiom Manufacturing, Inc. 7
Figure 0.2(c) –Warning decal location for ACS 400-2500 Aftercooler
Figure 0.2(d) –Warning decal location for ADS 400-2500 Dryer

8 Copyright © 2020 Axxiom Manufacturing, Inc.
THIS PAGE IS INTENTIONALLY BLANK

Copyright © 2020 Axxiom Manufacturing, Inc. 9
Section Page
Preface Manual Use, Explanation of Safety Symbols, and Glossary 3
0.0 Warning Decal Identification and Location 4
1.0 Rules for Safer Operation 10
2.0 Specifications and General Information 18
3.0 System Requirements 23
4.0 Abrasive Blast System General Operation 28
5.0 AirPrep System General Operation 29
6.0 Pre-operation Procedures 35
7.0 OperatingInstructions 42
8.0 Maintenance and Inspection Instructions 46
9.0 Drawings and Parts Lists 51
9.1 ACS 250P/400P Aftercooler Systems (Air Motor) 52
9.2 ACS 400-2500 Aftercooler Systems (Air Motor) 54
9.3 ACS 250P/400P Aftercooler Systems (Electric Motor) 56
9.4 ACS 400-2500 Aftercooler Systems (Electric Motor) 58
9.5 ADS 250P/400P Air Dryer Systems (Air Motor) 60
9.6 ADS 400-2500 Air Dryer Systems (Air Motor) 62
9.7 ADS 250P/400P Air Dryer Systems (Electric Motor) 64
9.8 ADS 400-2500 Air Dryer Systems (Electric Motor) 66
10.0 Recommended Spare Parts List 68
11.0 AirPrep System Technical Data and Troubleshooting 69
12.0 Warranty and Reference Information 71
13.0 Blasting Data Tables 76
Table of Contents

10 Copyright © 2020 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 Rulesfor 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

Copyright © 2020 Axxiom Manufacturing, Inc. 11
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 silicaand 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 duringthe 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 isfatal 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 anacceptable level as required by
OSHA 29 CFR 1910.1000 and 1910.94.

12 Copyright © 2020 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 and 1926.101.
Loud noise is generated 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 and 1926.101.
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 transferredinto automobiles or homes. See
Section 3.10 and refer to OSHA 29 CFR 1910.94 and 1910.132.
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 Safety and Health 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 watchpersonmay
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 lose 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.

Copyright © 2020 Axxiom Manufacturing, Inc. 13
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. AVOID DANGEROUS ENVIORNMENTS
It has been determined that blast abrasivesapproved for use in blast equipment are not ignitable nor
do they present a dust explosion hazard in environments approved for use. However, airborne
substances that make up the items and substrates being blasted can be ignitable when mixed with
airborne dust from the blast abrasive. To mitigate risk of dust explosion avoid blasting in confined
spaces without proper ventilation. Consult plant authorities, OSHA 29 CFR 1910.146 and 1910.94.
Explosion Hazard. Do Not operate blast equipment in confined spaces without proper ventilation.
Consult plant authorities, OSHA 29 CFR 1910.146 and 1910.94.
1.21. ELECTRICALLY GROUND EQUIPMENT.
Static electricity is generated by the abrasive flow through the blast hose and/or vacuum hose. To
minimize chance of static electrical shock to operating personnel only use anti-static blast hose
and/or vacuum hose, properly electrically bond the blast nozzle, blast hose couplings, and the
equipment, and properly install an earth ground to the abrasive blaster. See Section 5.12.
1.22. 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 Rules 1.23 through 1.33 below.
An AirPrep System is a Pressurized Vessel. Alterations, damage, or misuse of the pressure vessel
can result in rupturing. Damaged or incorrect components used on the AirPrep System 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.
1.23. NEVER OPERATE OVER MAXIMUM WORKING PRESSURE.
Do Not operate this equipment above maximum allowableworkingpressure (MAWP)atmaximum
operating temperature (°F) shown on the ASME nameplate attached to the vessel. See Sections 2.2
and 8.1.
1.24. 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. See Section 3.11 for information regarding the pressure
relief valve.

14 Copyright © 2020 Axxiom Manufacturing, Inc.
1.25. 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. See Section 2.2.
1.26. ASME NAMEPLATE REQUIRED.
Do Not operate this equipmentif the ASME pressure vessel nameplate is missing. Contact Axxiom
Manufacturing, Inc. for technical support.
1.27. DO NOT MODIFY VESSEL.
Do Not modify or alter this equipment, or any 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 the ASME/NB integrity.
1.28. 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.
1.29. 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.
1.30. 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.
1.31. 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. See Section 8.0.
1.32. INSPECT HANDWAY ASSEMBLY.
Do Not operate the abrasive blaster without first inspecting the handway assembly. To ensure
proper operation all handway components must be the correct size for the vessel handway opening.
See Section 6.3.
1.33. 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 installthis 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. Do Not install a muffler or silencer on the blowdown that is not designed for use on
AirPrep system. It can cause a malfunction and can result in a hazardous condition. See Section
5.11 and Section 6.2.

Copyright © 2020 Axxiom Manufacturing, Inc. 15
1.34. 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 AirPrep System is a Pressurized Vessel.The compressedairinside a pressurized vesselcontains
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.
1.35. 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).
1.36. 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.
1.37. CHECK FOR DAMAGED PARTS.
Do Not use this equipment withdamaged components. Periodically check all valves, hoses, fittings,
pipe, and pipe fittings (internal and external) to see that they are in good condition. Repair or
replace any component that shows any sign of wear, leakage, or any other damage. See Section 8.0.
Damaged components can fail during operation and result in serious injury or death to operating
personnel.
1.38. 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 5.14 and 8.8.
1.39. ALWAYS USE CORRECT REPLACEMENT PARTS AND ACCESSORIES.
Do Not use replacement parts or accessories that are not ratedfor pressures equal to or higher than
your equipment’s operating pressure. Improper hoses and/or fittings used on or connected to the
Schmidt equipment 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. See Section 9.0 and
Section 12.2.12.
Use of replacement components that are not Schmidt®originalfactoryreplacementpartsmayresult
in equipment failure which can result in serious injury to operating personnel.

16 Copyright © 2020 Axxiom Manufacturing, Inc.
1.40. 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 reservoir and moisture
separator tanks must be ASME coded tanks.
1.41. NEVER AIM BLAST NOZZLE TOWARDS ANY PERSON.
Do Not aim the blast nozzle towards yourself or any person. A system malfunction or a blocked
blast nozzle that clears can trigger accidental start up resulting in injury to personnel.
1.42. 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 Sections 3.8, 3.10,
and reference OSHA 29 CFR 1910.134.
1.43. 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.
1.44. 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. Refer to Section 8.0 for maintenance and inspection details.
1.45. DO NOT OVERLOAD THE LIFT EYES.
Do Not load the lifting eyes above the rated capacity. Do Not lift the blast vessel by anypoint other
than the lifting eyes or designated lift points. Do Not lift the blast vessel while it ispressurized. See
Section 2.6.
1.46. AVOID WET ENVIRONMENTS.
Do Not expose this equipment to rain. Do not use this equipment in wet conditions. AirPrep
Systems operated outdoors must be protected from weather.
1.47. AVOID CORROSIVE ENVIRONMENTS.
Do Not locate this equipment in corrosive atmospheres as rapid deterioration of fan shroud, cooling
coil, fan and motor may take place resulting in reduced life.
1.48. AVOID EXTREME TEMPERATURES.
Do Not expose AirPrep Systems fan motors to extreme temperatures. The motors furnished are
built for fan duty only. Consideration should be given to the installation location so motors are not
subjected to extreme temperatures. AirPrep Systems with air motor have a maximum operating
temperature of 250°F (121°C). Refer to the motor nameplate for AirPrep Systems with electric
motors. Do Not operate AirPrep Systems below 35°F (1°C).

Copyright © 2020 Axxiom Manufacturing, Inc. 17
1.49. DO NOT CYCLE AIRPREP SYSTEM FAN.
AirPrep Systems fan and drive motors are designed for continuous operation. Do Not alter to a
cycled fan mode.
1.50. ALLOW PROPER CLEARANCE.
Do Not install this equipment where airflow to aftercooler fan will be restricted. For proper air
flow, a minimum of 12" should be allowed between the aftercooler fan and any walls or
obstructions.
1.51. DO NOT OPERATE WITH GUARDS REMOVED.
Do Not operated AirPrep Systems with the fan guard removed. Do Not place hands near radiator
fan guard. Contact with rotating fan can result in serious injury to operating personnel.
1.52. ELECTRIC FAN MOTORS MUST BE INSTALLED BY QUALIFIED PERSONNEL.
Do Not connect electric motors to a power supply that does not have the same characteristics as
shown on the motor nameplate. Be sure to provide proper fusing to minimize chance of possible
motor burnout. Before starting themotor, follow manufacturer’s recommendations.Turnthefanby
hand to eliminate possible motor burnout in the event the fan has been damaged in shipment.
Observe operation after the motor has been started for the first time.
1.53. 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 Sections 0.0 and 8.11.
1.54. 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. This operation and maintenance manual is
available for downloading from SchmidtAbrasiveBlasting.com.
1.55. 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.

18 Copyright © 2020 Axxiom Manufacturing, Inc.
2.1 Notes to Distributors and Owners
2.1.1. Verify that the operation and maintenance manual is included with the AirPrep System
when it is received. Verify that the operation and maintenance manual is included with the
AirPrep System when it is delivered to the purchaser.
2.1.2. This equipment isintended 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 contact:
Axxiom Manufacturing, Inc.
11927 South Highway 6
Fresno, Texas 77545
Phone: [phone]
Fax: [phone]
Website: www.SchmidtAbrasiveBlasting.com
2.2 Air Prep System (ACS & ADS) Operating Specifications
Maximum Working Pressure 150 psi @ 250F
Minimum Operating Temperature 35F @ 150 psi
Air Flow Capacity See Section 6.0 table 1
Tank Volume See table below
MODEL NO. ACS 250P ACS 400P ACS 400
ACS 750 ACS 950 ACS 1200 ACS 1600 ACS 2000 ACS 2500
VOLUME (cu ft.)
(Liters)
2.7
(76)
2.7
(76)
8.6
(244)
9.8
(278)
10.0
(283)
10.0
(283)
10.0
(283)
19.5
(552) 19.5 (552)
MODEL NO. ADS 250P ADS 400P ADS 400
ADS 750 ADS 950 ADS 1200 ADS 1600 ADS 2000 ADS 2500
VOLUME (cu ft.)
(Liters)
2.7
(76)
2.7
(76)
8.7
(246)
11.7
(331)
11.7
(331)
11.7
(331)
19.0
(538)
27.3
(773) 30.4 (861)
APPROXIMATE
DELIQUESCENT
CAPACITY (cu ft.)
(Liters)
1.4
(42) 1.4 (42) 5.2 (147) 8.2 (232) 8.2 (232) 8.2 (232) 13.0 (368) 13.0
(368) 17.0
(481)
APPROXIMATE
DELIQUESCENT
CAPACITY
(Qty. 50lb Bags)
2 2 6 9 9 9 16 16 21
2.0 Specifications and General Information

Copyright © 2020 Axxiom Manufacturing, Inc. 19
2.3 Important Reference Numbers
Fill in the AirPrep Systems model number and serial number in the blank spaces below. These
will be used for reference whenever service or maintenance is required.
AirPrep System Model Number
AirPrep System Part Number
AirPrep System Serial Number National Board Number
2.4 Vessel Information
2.4.1. All pressure vesselsused in Schmidt AirPrep Systems aremanufacturedin strictaccordance
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 voids the ASME/NB integrity of the vessel.
2.5 Notes

20 Copyright © 2020 Axxiom Manufacturing, Inc.
2.6 AirPrep System Lifting
All AirPrep Systems are equipped with lifting eyes located at the top of the equipment.
Do Not connect slings or other lifting devices to any other location other than the lifting eyes.
All AirPrep Systems larger than ACS/ADS 250 are equipped with forklift pockets as a part of the
skid frame. Only qualified personnel should load and unload this equipment using fork trucks with
a sufficient load rating.
Figure 2.6(a) – 250-400 Portable Air Prep System Lifting Diagram