AXXIOM Manufacturing, Inc. SCHMIDT 120 User manual

BULK ABRASIVE BLASTER
OPERATION AND MAINTENANCE MANUAL
JULY 2010
SAVE THIS MANUAL AND MAKE AVAILABLE
TO ALL USERS OF THIS EQUIPMENT!
Manual Part Number 7200-205
© 2010 AXXIOM Manufacturing, Inc.
11927 S. Highway 6, Fresno, Texas 77545
800.231.2085 * 281.431.0581 * fax [phone]

© 2010 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.
12. Do Not transport trailer mounted bulk blasters on public roadways with abrasive loaded in
pressure vessel.
13. Do Not tow trailer mounted bulk blasters at speeds exceeding 65 mph.

© 2010 Axxiom Manufacturing, Inc. 1
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”.)
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.)]
Closure A manually operated hinged opening at the top of the bulk abrasive blaster used as
the abrasive inlet and as an inspection port.
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 or 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
respiratory diseases such as silicosis. (Also referred to as crystalline silica)
Instructions for use of manual sections

© 2010 Axxiom Manufacturing, Inc.2
Listed below are the warning decals and the corresponding hazards related to this equipment. Refer to
Figure 0.1a and 0.1b for images of the warning decals. Refer to Figure 0.2 for the locations of these
warning decals on the bulk abrasive blaster.
No. Qty. Part no. Description Hazard
1. 1 7031-000 Large “Schmidt” Not Applicable
2. 3 7031-054 “Warning” Airborne particles and
loud noise hazards
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. 3 7031-007A “Danger”
Pressurized vessel
Propelled objects will cause serious injury or
death. Depressurize vessel prior to performing
an
y
maintenance. See Section 6.2.
4. 2 7031-012A “Danger”
Pressurized vessel
Propelled objects will cause serious injury or
death. Depressurize vessel before opening
closure. See Sections 6.2 and 6.3.
5. 2 7031-070 “Safety Instructions”
Propelled objects can cause serious injury or
death. Read and understand closure operating
procedures before operating this equipment.
See Sections 6.2
,
6.3
,
and 6.4.
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
o
p
eration of this e
q
ui
p
ment. See Section 1.0.
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
dama
g
e to e
q
ui
p
ment. See Section 1.0.
8. 4 7031-009A “Warning”
Accident Hazard Loose wheel can cause loss of vehicle control. Tighten lug nuts frequently. See Section 8.13.
1) 7031-000
2) 7031-054 3) 7031-007A
Figure 0.1a –Warning decal summary
0.0 Warning Decal Identification and Location

© 2010 Axxiom Manufacturing, Inc. 3
4) 7031-012A 5) 7031-070 6) 7034-001
7) 7031-057 8) 7031-009A (Trailer mounted units only)
Figure 0.1b –Warning decal summary continued

© 2010 Axxiom Manufacturing, Inc.4
Figure 0.2 – Warning decal location

© 2010 Axxiom Manufacturing, Inc. 5
Section Page
0.0 Warning Decal Identification and Location 2
1.0 RulesforSaferOperation 6
2.0 Specifications and General Information 14
3.0 System Requirements and Personal Protective Equipment 18
4.0 Abrasive Blast System General Operation 23
5.0 AbrasiveBlasterGeneralOperation 24
6.0 Pre-operation Procedures 31
7.0 OperatingInstructions 42
8.0 Maintenance and Inspection Instructions 45
9.0 Drawings and Parts Lists 51
10.0 Recommended Spare Parts Lists 68
11.0 Troubleshooting 69
12.0 Warranty and Reference Information 76
13.0 BlastingDataTables Back
Table of Contents

© 2010 Axxiom Manufacturing, Inc.6
1.1. GENERAL RULE FOR SAFER OPERATION.
THE SCHMIDT® BULK ABRASIVE BLASTER HAS 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. Wear foot protection to
prevent injury. See Section 3.10 and OSHA 29 CFR 1910.136.
1.0 Rules for Safer Operation

© 2010 Axxiom Manufacturing, Inc. 7
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. Wear OSHA approved safety glasses. 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. Wear
OSHA approved respiratory protection. 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. Extreme caution must be
taken when selecting a source of breathing air. Breathing air provided by an oil-lubricated air
compressor can contain carbon monoxide; therefore, use of 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.

© 2010 Axxiom Manufacturing, Inc.8
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 generated by the blast nozzle and the blowdown operation of this equipment.
Wear OSHA approved hearing protection. 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 will 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 prevent 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.