Mod-U-Blast MBM Series User manual

MBM - Series Owner’s ManualMBM - Series Owner’s Manual
SUPERIOR PERFORMANCE
And Quality In Blast Cleaning Equipment
www.modublast.com Ph: [phone] Fax: [phone]
1.5 Cu. Ft, 3.5 Cu. Ft, 6.5 Cu. Ft, & 10 Cu. Ft Blast Machines1.5 Cu. Ft, 3.5 Cu. Ft, 6.5 Cu. Ft, & 10 Cu. Ft Blast Machines
Copyright© 2015 Mod-U-Blast®, All Rights Reserved
!WARNING
Manual # MBM1612
Read Manual
Failure to read, understand &
follow all safety and operation
procedures in this manual can
cause injury or death. Manuals
that are lost, incomplete, or
damaged, must be replaced
immediately

MBM-Series Owner’s Manual
2Copyright© 2015 Mod-U-Blast®, All Rights Reserved
Important Notice ................................ 3
Important Warning .............................. 4
Warning Labels ................................. 6
How MBM Systems Works ........................ 7
Operating Instructions .......................... 10
Maintenance Instructions ........................ 14
Parts Schematics .............................. 16
•Pressure Vessels •M-Valve •APV Valve •APV-II Valve
•Auto Air Valve •Dump Valves •Electric & Pneumatic Deadman
•Blow Down Mufflers •Lids & Screens
Troubleshooting................................ 30
Warranty..................................... 32
Contact Information ............................ 32
Table of Contents

MBM-Series Owner’s Manual
3Copyright© 2015 Mod-U-Blast®, All Rights Reserved
TO DISTRIBUTORS, PURCHASERS AND END USERS OF MOD-U-BLAST PRODUCTS
The information provided described and illustrated in this material is intended for experienced, knowledgeable users
of abrasive blasting equipment and supplies(products).
The products described in this material may be combined as determined solely by the user in a variety of ways and
purposes. However no representations are made as to intended use, performance standards, engineering suitabil-
ity, safe practices or compliance with government regulations and laws that apply to these products, products of
others, or a combination of various products chosen by the user or others. It is the responsibility of the users of these
products, products of third parties, and a combination of various products, to exercise caution and familiarize them-
selves with all applicable laws, government regulations and safety requirements.
Nor are representations made or intended as to the useful life, maintenance cycles, efficiency or performance of
the referenced products of any combination of products. This material must not be used for estimating purposes.
Production rates, labour performance or surface finishes are the sole responsibility of the user based on the
user’s expertise, experience and knowledge of industry variables.
It is the responsibility of the user to insure that proper and comprehensive training of operators has been performed
and all environmental and safety precautions observed.
Mod-U-Blast Inc. provides a variety of excellent products to the surface preparation industry, and we are confident
that all proficient users, operators and contractors in this industry will continue to use our products in a safe and
knowledgeable manner.
Before using this product, read all instructions, literature, labels, specifications and warnings sent with and affixed to the unit.
If operation of the unit is unclear after reading this manual, contact your supervisor for instructions. It is the respon-
sibility of the employer to read the following instructions to users of this equipment. Periodic inspection at the work
site should be made by supervisory personnel to ensure the blast machine is being properly used and maintained.
A copy of this owner’s manual must be kept with the blast machine and readily accessible to the blast machine
operators at all times.
Important Notice

Read all instructions before using this equipment. For efficient and safe production, reference OSHA requirements.
Remember:
1. Safety equipment is required by OSHA. Use NIOSH approved air fed respirator (helmet) connected to an approved
breathing air compressor. Air must be filtered and monitored for carbon monoxide (co2). Air source must be rated
suitable as a supply of breathing air CLASS D. Wear protective clothing, safety shoes, leather gloves, ear and eye
protection.
2. Start up Preparations:
Check helmet respirator, filters and lenses. Blast machine must be grounded to avoid shock. Inspect fittings and
hoses for damage and wear. Safety clip quick couplings together Install whip checks on all connections for safety.
Inspect & test remote controls. OSHA regulations require remote controls on all blast vessels.
NEVER USE A BLAST VESSEL WITHOUT A REMOTE CONTROL INSTALLED.
3. Caution:
Watch for silicosis or toxic dust hazard (from dust created when using silica sand as a blast media). DO NOT USE
MEDIA CONTAINING FREE SILICA. Unless otherwise specified, working pressure of blast machine and related
components must not exceed 125 p.s.i. or 150 p.s.i. depending on vessel rating. Keep blast nozzle controlled and
aimed at the work. Do not weld on or repair your blast machine, This will void National Board Approval, CRN, ABSA,
etc.
4. Keep your machine in good repair. Use Mod-U-Blast replacement parts and do not substitute or modify Mod-U-
Blast supplied items.
The following steps should be completed prior to beginning the blasting operation.
4.1 Inspect the condition of the blast machine. Check the pop-up valve, pop-up valve seat gasket, inspection door
components, remote control components, piping and (red) air “pusher line” fittings. Prior to operating the blast
machine replace excessively worn or damaged parts and tighten all fitting connections.
4.2 Check the blast hose, nozzle holder and coupling for wear and damage. Replace if excessively worn or damaged.
4.3 Inspect all fittings for proper installation. Check the “pusher line” pipe coupling connections for a secure fit. DO
NOT operate the blast machine if connections are loose.
4.4 Ground the blast machine.
Important Warning
MBM-Series Owner’s Manual
4Copyright© 2015 Mod-U-Blast®, All Rights Reserved

4.5 Check the blast hose couplings and nozzle holder for coupling gasket (s) and nozzle holder washer. Replace if
required. REGULATIONS REQUIRE that all blast hose couplings be secured together with safety clips or wire. It is
strongly advised that safety cables or whipchecks are used on all air hose and blast hose connections.
4.6 Prior to putting abrasive in the machine, inspect and test the remote control system. To properly complete your
equipment inspection, follow these steps...
4.7 Prior to putting abrasive in the machine, inspect and test the remote control system. To properly complete your
equipment inspection, follow these steps...
(Refer to remote control set-up)
4.8 Ties are provided to attach the safety switch (deadman) assembly to the blast hose. Adjust as necessary.
4.9 Attach the remote control hose or wire to the body switch. The fittings are matched to complete the connection.
4.10 It is recommended that the remote control hose or wire be tied to the blast hose approximately every five feet.
4.11 IN ORDER FOR THE REMOTE CONTROL SYSTEM TO PROPERLY OPERATE, DO NOT MODIFY OR SUBSTITUTE
ANY FITTINGS ON THE REMOTE CONTROL HOSE OR WIRE, DEADMAN HANDLE, OR CONTROL VALVE.
4.12 In accordance with ASME paragraph UG-125, all pressure vessels shall be supplied with protection against
over-pressurization. A side outlet tee is provided in the inlet piping assembly to accommodate the appropriate pres-
sure relief valve.
4.13 OSHA requires protective safety equipment and clothing be used at all times FOR ALL PERSONNEL IN THE
IMMEDIATE BLASTING AREA, including but not limited to
- Abrasive resistant suit, leather gloves, safety shoes, ear and eye protection.
- NIOSH approved air fed respirator (helmet) supplied by a source of breathing air that meets AT LEAST the require-
ments for Type 1 gaseous air described in the Compressed Gas Association Commodity Specification G-7.1 (Grade
D or higher quality)as specified by law. Air must be filtered and monitored for carbon monoxide as required to assure
clean, breathing air at all times.
ADHERE TO ALL NIOSH RECOMMENDATIONS, LIMITATIONS, AND REGULATIONS PERTAINING TO APPROVED
RESPIRATOR USAGE, WITHIN HAZARDOUS SUBSTANCES CONCENTRATION PERMISSIBLE EXPOSURE LIMITS
(PEL).
Important Warning
MBM-Series Owner’s Manual
5Copyright© 2015 Mod-U-Blast®, All Rights Reserved

MBM-Series Owner’s Manual
6Copyright© 2015 Mod-U-Blast®, All Rights Reserved
Warning Label Locations
Parts Ordering
1-800-661-3842
Stock # LAB-30
Stock # LAB-43
Stock # LAB-29
Labels must be replaced when they are no longer readable
Stock # LAB-44
Stock # LAB--27

MBM-Series Owner’s Manual
7Copyright© 2015 Mod-U-Blast®, All Rights Reserved
How MBM-Series Systems Work Pressure release with Auto Air Valve / micro valve
Warning: This section of the manual is designed to give you a general understanding of how the
Abrasive Blaster functions. ALL sections of this manual must be read and understood before operat-
ing the equipment.
ADDING ABRASIVE
PRESSURIZATION
DEPRESSURIZATION (Blow - Down)
When the control handle is released in a pressure release
system, the reverse effect takes place in the blast system.
The Auto Air Valve closes stopping the air ow and the
dump valve opens causing a quick release of compressed
air.
Abrasive is added through the hole in the top of the
blaster where the pop-up and seal are located. It ows
down through the hole, around the pop-up, and down
the bottom of the pressure vessel where it exits through the
metering valve.
When a compressed air source (such as an air-compres-
sor) is connected to the inlet of the Abrasive blaster and
the inlet valve is opened, compressed air ows through the
moisture separator (if equipped) and reaches the Auto
Air Valve where it is stopped. When the control handle is
activated, the Auto Air Valve opens while the dump valve
closes and the air ows through into the pressure vessel
causing the Pop-Up (located internally) to seal against its
seat. The pressure vessel is now sealed and pressurized. Air
will continue past the choke valve to the metering valve
where it is mixed with abrasive . The mixture of compressed
air will now exit the Abrasive Blaster through a blast hose
and nozzle connected to the coupling on the metering
valve and blasting begins.
Loaded Abrasive
Compressed
Air Inlet
Exhausted
Air

MBM-Series Owner’s Manual
8Copyright© 2015 Mod-U-Blast®, All Rights Reserved
How MBM-Series Systems Work Pressure Hold with APV T-Valve & APV II
Warning: This section of the manual is designed to give you a general understanding of how the
Abrasive Blaster functions. ALL sections of this manual must be read and understood before operat-
ing the equipment.
ADDING ABRASIVE
Abrasive is added through the hole in the top of the blaster
where the pop-up and seal are located. It ows down through
the hole, around the pop-up, and down the bottom of the
pressure vessel where it exits through the metering valve.
PRESSURIZATION
Before pressurization can take place in a pressure hold system,
the blow down valve must be closed. Then, when a com-
pressed air source (such as an air-compressor) is connected to
the inlet of the Abrasive blaster and the inlet valve is opened,
compressed air ows and into the pressure vessel causing the
Pop-Up (located internally) to seal against its seat allowing
the pressure vessel to become pressurized. When the control
handle is activated, the Auto Air Valve and Metering Valve
open allowing compressed air and abrasive to ow and mix.
The mixture of compressed air will now exit the Abrasive Blaster
through a blast hose and nozzle connected to the coupling on
the metering valve and blasting begins.
DEPRESSURIZATION (Blow - Down)
When the control handle is released in a pressure hold system,
(MBM Blast Pots with T-Valves) the pressure vessel remains lled
with compressed air. The compressed air remaining in the pres-
sure vessel is released when the inlet valve is manually closed
and the blow-down valve is manually opened.
Loaded Abrasive
Compressed
Air Inlet
Exhausted
Air

MBM-Series Owner’s Manual
9Copyright© 2015 Mod-U-Blast®, All Rights Reserved
How MBM-Series Systems Work Pressure Release with Combo Valve
Warning: This section of the manual is designed to give you a general understanding of how the
Abrasive Blaster functions. ALL sections of this manual must be read and understood before operat-
ing the equipment.
ADDING ABRASIVE
Abrasive is added through the hole in the top of the blaster
where the pop-up and seal are located. It ows down through
the hole, around the pop-up, and down the bottom of the
pressure vessel where it exits through the metering valve.
PRESSURIZATION
When a compressed air source (such as an air-compressor)
is connected to the inlet of the Abrasive blaster and the inlet
valve is opened, compressed air ows through the moisture
separator (if equipped) and reaches the Combination Valve
where it is stopped. When the control handle is activated, the
Combination valve pinches the Blow-down Hose and air ows
through into the pressure vessel causing the Pop-Up (located
internally) to seal against its seat. The pressure vessel is now
sealed and pressurized. Air will continue past the choke valve
to the metering valve where it is mixed with abrasive . The
mixture of compressed air will now exit the Abrasive Blaster
through a blast hose and nozzle connected to the coupling on
the metering valve and blasting begins.
DEPRESSURIZATION (Blow - Down)
When the control handle is released in a pressure release
system, (MBM Blast Pots with combo valves) the combination
valve automatically closes stopping the ow of compressed
air and releasing the Blow-down Hose. The compressed air
remaining in the pressure vessel is released through the Blow-
down Hose and blasting ends.
Loaded Abrasive
Compressed
Air Inlet
Exhausted
Air

Operating Instructions
Warning: The Procedures provided in the Operating Instructions section of the manual are
designed to provide basic information on how to safely operate the features of Mod-U-Blast®
MBM-Series Series Abrasive Blasters. Only personnel thoroughly trained in abrasive blasting should
operate the Abrasive Blaster.
SETTING-UP THE BLASTER
INSPECT PRESSURE VESSEL
When you receive your Abrasive Blaster, remove the Handway Assembly and check for foreign items that
may have fallen into the Abrasive Blaster. Remove any foreign materials and reinstall the Handway Assem-
bly.
Danger: Never perform any maintenance or attempt to open the Abrasive Blaster in any
way while it is pressurized. The violent release of compressed air and propelled objects will
cause serious injury or death.
Re-Tighten Handway Assembly
After the Abrasive Blaster has been pressurized for the rst time, tighten the nuts on the Handway Assem-
bly. Tightening the nut on the Handway Assembly should also be done any time after the Handway has
been removed for maintenance before and after the next pressurization. Follow the nut torque instructions
on the label above the Handway.
PURGE AIR SUPPLY HOSE
Before connecting the Air Supply Hose to the Abrasive Blaster, purge the hose of any moisture or foreign
debris. Standing water or moisture in the air line will cause degraded performance of the Abrasive Blaster.
Air supplied to the Abrasive Blaster must be clean, dry and cool.
Attach Remote Control handles
Attach the Remote Handle to the Blast Hose near the Nozzle with hose clamps or heavy wire ties. Form a
loop of Twinline/Control Cord that comes 6” away from the Blast Hose, runs 6” parallel to the Blast Hose,
and comes 6” parallel to the Blast Hose, and comes 6” back to Blast Hose. Using duct tape, attach the
Twinline/Control Cord to the Blast Hose where the loop ends by wrapping the tape around the Blast Hose
twice and then around the Twinline/Control Cord. This creates a strain-relief attachment and is only neces-
sary on the rst connection near the Control Handle. Starting from the Nozzle end of the Blast Hose, attach
the Twinline/Control Cord to the blast hose by wrapping duct tape around both every 3 feet
MBM-Series Owner’s Manual
Copyright© 2015 Mod-U-Blast®, All Rights Reserved
10

Operating Instructions
BEFORE YOU BLAST
PRE-BLAST CHECK
Before each use of the Abrasive Blaster, it must be
checked to ensure it is in a safe condition to be used.
Closely examine all components of the Abrasive Blaster for
signs of excessive wear, worn out seals and hoses, or dam-
aged components. If any component of the Abrasive Blast-
er is found to be damaged or worn, it must be replaced
before blasting.
ADDING ABRASIVE
Warning: Never use an Abrasive
Blaster if any components are damaged
or worn. Damaged or worn parts must
be replaced before use.
Before lling the Abrasive Blaster, make sure the inlet valve
is closed and the pressure vessel is in a depressurized state.
Abrasive is added by pouring it into the top of the Abrasive
Blaster where the abrasive can ow through the opening
and into the pressure vessel. Do not overll the Abrasive
Blaster. Do not allow foreign materials to enter the Abrasive
Blaster.
Danger: Never reach into the opening while
lling the Abrasive Blaster. The Pop-up valve
can close causing severe injury.
Warning: Mod-U-Blast® Abrasive Blasters
may not be used with abrasives containing
silica. Never use abrasives containing silica.
Warning: Electrically conductive abrasives
may not be used with Abrasive Blasters using
Electric Remote Control Systems without
changing to sealed strain relief connectors.
Warning: Never attempt to move or trans-
port the Abrasive Blaster at more than 15mph
when it contains Abrasive.
REMOTE CONTROL SYSTEM
Abrasive Blasters must use a Remote Control System (com-
monly known as a deadman) to start and stop abrasive
blasting. Remote Control Systems can be electric or pneu-
matic
ELECTRIC: Connect the Remote Control to the Abrasive
Blaster’s female twist-lock connector associated with the
outlet you want to blast with. Connect a 12 V DC power
source (12V Battery or Optional 120 V AC to 12 V DC con-
verter) to the Abrasive Blaster’s male twist-lock connector.
PNEUMATIC: Connect the Remote Control twinline hose to
the quick disconnect ttings associate with the outlet you
want to blast with on the Abrasive Blaster. The twinline hose
is supplied with different size ttings on each of the 2 lines
to prevent them from being connected to the Abrasive
Blaster incorrectly. Do not modify or reverse these ttings.
It is not recommended that Pneumatic Remote Control
Systems are used when the Blast Hose length will be longer
than 100 feet.
Warning: Never operate the Abrasive Blast-
er without a remote control system.
Warning: Never reverse or modify pneumat-
ic Remote Control twinline hose ttings.
Danger: Always use caution around elec-
tric sources to avoid electric shock. Do not
operate electrical remote controlled Abrasive
Blasters in wet or other hazardous environ-
ments.
CONNECTING HOSES
Before connecting hoses to the Abrasive Blaster, make sure
the Inlet Valve is closed and the compressed air supply is
shut off. Connect the hose coming from the compressed
air supply to the inlet on the Abrasive Blaster and secure
with safety clips. Connect the blast hose to the coupling on
the Metering Valve at the base of the Abrasive Blaster and
secure with safety clips or mechanics / safety wire when
using Mod-U-Blast couplings.
Warning: Always use safety devices like
clips and whip-checks (safety cables) at hose
connections.
MBM-Series Owner’s Manual
Copyright© 2015 Mod-U-Blast®, All Rights Reserved
11

Operating Instructions
BLASTING
Pressurizing the abrasive blaster
• All “BEFORE YOU BLAST” procedures have been
followed.
• The Blow-down Valve is closed. (Pressure hold Blast-
ers with T-Valves only)
• The inlet valve is closed (blasters with T-Valves)
• The Remote Control Handles are released.
• All hose connections are secure and have a safety
clip.
• The Abrasive Blaster is set up in a safe and level
location.
• Only personnel who have been thoroughly trained
and have read and understand the manual are in
the vicinity of the Abrasive Blaster.
Before pressurizing the Abrasive Blaster make sure the
following conditions occur:
Danger: Never perform any maintenance
or attempt to open the Abrasive Blaster in any
way while it is pressurized. The violent release
of compressed air and propelled objects will
cause serious injury or death.
Danger: Never supply compressed air
exceeding 150 PSI (10.3 BAR) to the Abrasive
Blaster.
Warning: Blast Hose may kick back when
Remote Control Handle is activated. Be pre-
pared and brace yourself for kick back.
Warning: All those who will be in the area
while blasting is to occur must be properly
trained, read the manual, and be wearing
safety equipment to protect from the haz-
ards described by the WARNING and DAN-
GER labels located on the Abrasive Blaster. If
any labels are worn or missing, they must be
replaced.
Using the Abrasive Blaster
After pressurizing the Abrasive Blaster, it is ready to begin
blasting. Press the safety button or push down the safety
ap and squeeze the Remote Control Handle to start the
ow of abrasive and compressed air. Adjustments to the
air/abrasive mixture can be made by turning the handle
on the APV Series Metering Valves. There will be a delay
between a change made at the Metering Valve and
what comes out of the Nozzle Depending on the length of
Blast Hose being used. Adjustments to the Metering Valve
can only be made when Abrasive Blaster is not in opera-
tion.
To stop the ow of compressed air and abrasive, release
the Remote Control Handle and blasting will stop after a
short time. How long it takes for blasting to stop will de-
pend on the length of Blast Hose being used.
Danger: Airborne particles produced by
abrasive blasting can cause respiratory dis-
ease. All persons operating or located near
the blasting site must wear approved NIOSH /
OSHA approved breathing equipment. Never
use abrasive containing silica.
Warning: Only personnel thoroughly
trained in abrasive blasting should operate
the Abrasive Blaster. This manual only pro-
vides basic information on how to safely op-
erate the features of MOD-U-BLAST® MBM-Se-
ries Series Abrasive Blasters.
Warning: Never point the blast Nozzle at
yourself, other people, or the Abrasive Blaster.
Warning: The Choke Valve must be com-
pletely open when blasting or damage to
equipment will occur
MBM-Series Owner’s Manual
12 Copyright© 2015 Mod-U-Blast®, All Rights Reserved

BLASTING
Operating Instructions
Draining the moisture separator
(IF EQUIPPED)
During blasting, the moisture Separator must be periodi-
cally drained. The best way to accomplish this is to leave
the drain valve slightly open all the time so it constantly
leaks air and forces moisture out.
Warning: The Abrasive Blaster must be
supplied with clean, cool, dry compressed air
in order to function properly.
Shutting down the Abrasive Blaster
When blasting is complete, the Abrasive Blaster will need
to be shut down. On pressure release systems, releasing
the remote control handle will automatically depressurize
the abrasive blaster. On pressure hold systems, make sure
the Remote Control Handles are released, then close the
Inlet Valve. Slowly open the Blow-down Valve to allow the
compressed air stored in the Abrasive Blaster to escape.
Disconnecting air supply hose
After the Abrasive Blaster has been depressurized, and
the Inlet Valve has been closed, the Compressed Air
Supply Hose may still contain pressure which must be
released before disconnecting the hose. To do this shut
off the compressed air at its source, and open the Drain
Valve and Blow-Down Valve on the Abrasive Blaster.
Slowly open the inlet valve on the Abrasive Blaster. The
compressed air stored in the Compressed Air Supply Hose
Can now escape through the Drain Valve. When you no
longer hear air escaping through the drain valve, squeeze
the Compressed air in the Compressed Air Supply Hose it is
ready to be disconnected.
Danger: Never disconnect any compressed
air supply hose without rst performing the
“DISCONNECTING AIR SUPPLY HOSE” proce-
dure described above. Failure to do so can
cause the hose to blow off violently injuring or
killing nearby people.
MBM-Series Owner’s Manual
13 Copyright© 2015 Mod-U-Blast®, All Rights Reserved
Warning: Never operate a Pressure Hold
MBM series blaster without a mufer on the
blow down valve. Without the mufer, the
sudden release of compressed air can cause
severe injury.

Maintenance Instructions
Maintenance Schedule:
1) Inspect personal protectIve equIpment (ppe)
Including but not limited to; Respirators, Airline Filters, Carbon-Monoxide Monitors, Hearing Protec-
tion, Eye Protection, Foot Protection, Protective Clothing & Gloves.
Inspect ALL Personal Protective Equipment (PPE) for proper fit, condition & operation as designed.
Replace, repair, or be fitted as needed.
Every 8 Hours of Use
2) Inspect remote control Handle(s) and control Hose/cord
Pneumatic Remote Control Systems: Inspect Control Handle for damage making sure the Safety
Flap/Lever Lock/Button is in good working order and replace or repair as needed. Inspect twinline
hoses and replace if leaks, areas that show abrasion, or soft spot are found.
Electric Remote Control Systems: Inspect Control Handle for damage making sure the Safety Flap/
Lever Lock/Button is in good working order and replace or repair as needed. Inspect control cord and
replace if damaged plug ends, areas that show abrasion, exposed wires, or cracks are found.
Every 8 Hours of Use
3.) Inspect Blast Hose, couplIngs & gaskets
Inspect Blast Hose for leaks, abrasion & soft spots, and replace as needed. Inspect couplings for
damage, leaks & wear, and replace as needed. Inspect coupling gaskets for leaks & wear as needed.
Always use safety clips & whip checks (safety cables) at Blast Hose connections.
Every 8 Hours of Use
4.) Inspect BlastIng nozzle
Inspect the Blasting Nozzle for wear and proper bore diameter. Replace the Blasting Nozzle when the
bore diameter has worn to 1/16” wider than its original diameter. Example: replace a #5 nozzle (5/16”
bore) when the bore reaches 3/8”.
Every 8 Hours of Use
5.)Inspect aIr Hose, couplIng & gaskets
Inspect Air Hose for leaks, abrasion & soft spots, and replace as needed. Inspect couplings for damage,
leaks & wear, and replace as needed. Inspect coupling gaskets for leaks & wear, and replace as needed.
Always use safety clips & whip checks (safety cables) At Air Hose connections.
Every 8 Hours of Use
6.) Inspect & clean Blow-down muffler
Remove the Blow-down muffler, turn it upside-down and tap on a hard surface to free trapped debris. If
muffler is clogged and can’t be cleaned out sufficiently, it must be replaced.
Every 40 Hours of Use
7.) Inspect pop-upand pop-upgaskets
Inspect the Pop-Up & Pop-Up Gasket for wear and replace as necessary
Every 200 Hours of Use
Procedure to be Performed Maintenance Interval
Danger: Never perform any maintenance
or attempt to open the Abrasive Blaster in any
way while it is pressurized. The violent release
of compressed air and propelled objects will
cause serious injury or death.
WARNING: Maintenance procedures are
to be performed by experienced qualied
personnel only, Failure to perform maintenance
procedures correctly at the intervals specied
below can lead to performance problems and
equipment failure, and will void the equipment
warranty.
MBM-Series Owner’s Manual
14 Copyright© 2015 Mod-U-Blast®, All Rights Reserved

Maintenance Instructions
Maintenance Schedule Continued...
8.) servIce meterIng valve(s)
Disassemble, clean & inspect the Metering Valve for proper and worn components. Replace any worn
components found. Lubricate APV & APVII valves with anti-seize before reassembling.
Every 600 Hours of Use
9.) servIce auto aIr valve(s)
Disassemble, clean & inspect for proper operation and worn components. Replace any worn compo-
nents found. Lubricate with anti-seize before reassembling.
Every 600 Hours of Use
10.) servIce control valve(s)
Disassemble, clean & inspect for proper operation and worn components. Replace any worn compo-
nents found. Lubricate with anti-seize before reassembling.
Every 600 Hours of Use
Procedure to be Performed Maintenance Interval
MBM-Series Owner’s Manual
15 Copyright© 2015 Mod-U-Blast®, All Rights Reserved

Pressure Vessel Parts List
MBM-Series Owner’s Manual
16 Copyright© 2015 Mod-U-Blast®, All Rights Reserved
1 EE2125-107 1-1/4” M VALVE W/ URE-
THANE SLEEVE
2 125-AIR 1-1/4” AIR HOSE
3 290375 MUB DUMP VALVE
4 281250 AQUA VALVE 1-1/4”
5 51810-150 KINGSTON 118C x 1 x 150PI
6 290340 MUB SILENCER
7 65-825 1-1/4” BRASS BALL VALVE
8 PL07 3/4” PLUG
9 PL10 1” PLUG
10 60525 (ALUM) 1-1/2” NPT TANK COUPLER
60526 (BRASS) “
60526 (STEEL) “
60523 (ALUM) 1-1/2” NPT TANK COUPLER
60524 (BRASS) “
60624 (STEEL) “
60526L (BRASS) 1-1/2” POLYLINED TANK
COUPLER
60626L (STEEL)
11 24000-C ELECTRIC CONTROLS ASSY
24020 12 V ELECTRIC SOLENOID
12 290010-65 WHEEL FOR 6.5 & 10
BLAST MACHINE
290010-35 WHEEL FOR 3.5 BLAST
MACHINE
13 290187 AV 1-1/4” X 6” NIPPLE
14 EE2100-011 POP-UP GASKET / URE-
THANE
15 EE2100-010 POP-UP PLUNGER / URE-
THANE
16 22614 INSPECTION DOOR 6” X 8”
17 22617 INSPECTION DOOR GASKET
6” X 8”
ITEM # STOCK # DESCRIPTION
15
16
17
14
1
2
3
4
5
6
7
8
9
10
11
12
13
MBM - 1.5PRE-AV
MBM - 3.5PRE-AV
MBM - 6.5PRE-AV
MBM - 10PRE-AV
(Electric controls with M-Valve)
Parts Ordering
1-800-661-3842

MBM-Series Owner’s Manual
17 Copyright© 2015 Mod-U-Blast®, All Rights Reserved
3
5
6
7
8
9
4
10
11
12
1 EE2125-107 1-1/4” M VALVE W/ URE-
THANE SLEEVE
2 125-AIR 1-1/4” AIR HOSE
3 290375 MUB Dump Valve
4 281250 AQUA VALVE 1-1/4”
5 PL10 1” PLUG
6 PL07 3/4” PLUG
7 290340 MUB SILENCER
8 F293-J CHECK VALVE 1-1/4”
9 290010-65 WHEEL FOR 6.5 BLAST
MACHINE
290010-35 WHEEL FOR 3.5 BLAST
MACHINE
10 290187 AV 1-1/4” X 6” NIPPLE
11 60525 (ALUM) 1-1/2” NPT TANK COUPLER
60526 (BRASS) “
60526 (STEEL) “
60523 (ALUM) 1-1/2” NPT TANK COUPLER
60524 (BRASS) “
60624 (STEEL) “
60526L (BRASS) 1-1/2” POLYLINED TANK
COUPLER
60626L (STEEL)
ITEM # STOCK # DESCRIPTION
MBM - 1.5PR-AV
MBM - 3.5PR-AV
MBM - 6.5PR-AV
MBM - 10PR-AV
(Pneumatic controls with M-Valve)
Parts Ordering
1-800-661-3842

MBM-Series Owner’s Manual
18 Copyright© 2015 Mod-U-Blast®, All Rights Reserved
1 EE2149-108 1-1/2” VALVE W/ URETHANE
SLEEVE
EE2149-008 1-1/2” VALVE W/ TUNGSTEN
CARBIDE SLEEVE
EE2149-107 1-1/4” VALVE W/ URETHANE
SLEEVE, COMPLETE
EE2149-007 1-1/4” VALVE W/ TUNGSTEN
CARBIDE SLEEVE
EE2149-106 1” VALVE W/ URETHANE
SLEEVE
EE2149-006 1-1/4” VALVE W/ TUNGSTEN
CARBIDE SLEEVE
2 125-AIR 1-1/4” AIR HOSE
3 290340 MUB SILENCER
4 281250 AQUA VALVE 1-1/4”
5 22122-UB UNION BALL VALVE
6 24047 ELECTRIC CONTROLS
7 65-800 BALL VALVE 1” BRASS
8 65-825 1-1/4” BRASS BALL VALVE
9 50-123 1/4” MINI FILTER
10 60525 (ALUM) 1-1/2” NPT TANK COUPLER
60526 (BRASS) “
60526 (STEEL) “
60523 (ALUM) 1-1/2” NPT TANK COUPLER
60524 (BRASS) “
60624 (STEEL) “
60526L (BRASS) 1-1/2” POLYLINED TANK
COUPLER
60626L (STEEL)
11 290010-65 WHEEL FOR 6.5 & 10
BLAST MACHINE
290010-35 WHEEL FOR 3.5 BLAST
MACHINE
12 PL10 1” PLUG
ITEM # STOCK # DESCRIPTION
1
36
7
8
9
10
12
2
4
5
11
Parts Ordering
1-800-661-3842
MBMTV - 3.5PRE
MBMTV - 6.5PRE
MBMTV - 10PRE
(Electric controls with T-Valve)

MBM-Series Owner’s Manual
19 Copyright© 2015 Mod-U-Blast®, All Rights Reserved
1 EE2125-107 1-1/4” M VALVE W/ URE-
THANE SLEEVE
2 125-AIR 1-1/4” AIR HOSE
3 EE22233-000 C - VALVE
4 65-825 1-1/4” BRASS BALL VALVE
5 SB075-2 3/4” BLAST HOSE
6 60501 NOZZLE HOLDER
7 60525 (ALUM) 1-1/2” NPT TANK COUPLER
60526 (BRASS) “
60526 (STEEL) “
60523 (ALUM) 1-1/2” NPT TANK COUPLER
60524 (BRASS) “
60624 (STEEL) “
60526L (BRASS) 1-1/2” POLYLINED TANK
COUPLER
60626L (STEEL) “
8 PL10 1” PLUG
9 290010-65 WHEEL FOR 6.5 BLAST
MACHINE
290010-35 WHEEL FOR 3.5 BLAST
MACHINE
10 290187 AV 1-1/4” X 6” NIPPLE
ITEM # STOCK # DESCRIPTION
MBMVC - 3.5PR
MBMCV - 6.5PR
MBMCV - 10PR
(with Combo Valve)
Parts Ordering
1-800-661-3842
3
6
8
9
10
2
4
5
1
7

MBM-Series Owner’s Manual
20 Copyright© 2015 Mod-U-Blast®, All Rights Reserved
1 EE2125-000-06 BODY
2 EE2125-000-02 CAP
3 EE2125-000-01 KNOB
4 EE2125-000-03 ROLL PIN
5 EE7010-505-56 BOLT WITH WASHER
6* EE2125-000--5 PLUNGER
7*+ EE2125-000-09 GASKET
8*+ EE2125-000-08 SLEEVE URETHANE
9*+ EE2149-000-06 PLUNGER SEAL
10 EE21250-0710 PIPE NIPPLE
11*+ EE2149-000-18 O-RING
11 60525 (ALUM) 1-1/2” NPT TANK COUPLER
ITEM # STOCK # DESCRIPTION
*INCLUDED IN REPAIR KIT - STK # EE2125-100-99
+INCLUDED IN SOFT KIT - STK # EE2125-100-98
Parts Ordering
1-800-661-3842
M-VALVE
1
23
4
5
6
7
8
9
10
11
Stock # EE2125-107