BlastPro BP-9-SP User manual

BP-9-SP
MACHINE MANUAL
KEEP WITH MACHINE

Table of Contents
Applications ..........................................................................................................3
Specifications........................................................................................................3
Manufacturer.........................................................................................................4
General.................................................................................................................4
Work Site Assessment & Inspection.....................................................................4
Start-Up Procedures.............................................................................................6
Operational Safety Procedures.............................................................................8
Shut-Down Procedures.........................................................................................8
Maintenance Procedures......................................................................................9
Operating Instructions.........................................................................................10
Transportation.....................................................................................................13
Dust Collector Function.......................................................................................14
Dust Collector Maintenance................................................................................14
Inspection Timetable...........................................................................................14
Blast Wheel Removal & Installation....................................................................15
Fault Diagnostics ................................................................................................16
Schematics .........................................................................................................19
Warranty Registration Information ......................................................................22
Warranty Registration Card ................................................................................24

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Applications
The BP-9-SP is an affordable self-propelled 230 volt single phase blast cleaning system
designed for small to medium sized jobs as well as for acting as a complimentary unit
on larger jobs. Ideal for edge work & hard-to-reach areas, the BP-9-SP is utilized to
prepare concrete surfaces prior to the application of paint, coatings, or overlays on
areas such as garage floors, balconies, basements, pool decks, & edges. The
mechanics of the BP-9-SP are fairly simple. Shot from the blast wheel, which sits in a
control cage, is thrown over 200 mph through an opening in the control cage & down
onto to the concrete surface that is being cleaned. Due to the high rate of speed at
which the shot is traveling, it acts to fracture the underlying surface which consequently
produces concrete dust. After hitting the concrete surface, the shot rebounds off of it
and, through a combination of the rebound effect & the use of a vacuum, the shot as
well as the concrete dust move through the blast housing. Because shot is heavier than
concrete dust, gravitational force causes the shot to be sent back into the shot hopper
where it is continuously recycled by the machine. As for the concrete dust, it is sucked
into a duct hose which travels from the blast housing to the dust collector. After traveling
through the duct hose, the concrete dust is deposited in the dust collector’s dust bin.
Specific advantages of the BP-9-SP include that fact that it as well as all of its parts are
made in the United States. As a result, there is typically no lead time when ordering
parts. Also, the electrical box & electrical components of the BP-9-SP are engineered &
constructed by a UL certified electrical contractor. The type W 12/3 electrical cord used
in the BP-9-SP is the toughest & most wear-resistant cord available on the market
today. Finally, twenty-four hour customer service comes standard with the purchase of a
BP-9-SP machine
Specifications
Production Capacity
450 ft^2/hr.
Blast Pattern
9”
Travel Speed
2-80 ft/min.
Blast Motor
4 HP
Voltage
230V Single Phase
Amperage
17 A
Minimum Generator
15 kW
Dimensions
36” x 12” x 48”
Weight
318 lbs.
Power Cord Length
50 ft
Seals
Magnetic/Brushes
Distance to Edge
1.5”
Dust Collector
Required

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Manufacturer
Blastpro Manufacturing
6021 Melrose Lane
Oklahoma City, OK 73127
Toll free: 877-495-6464
Phone: [phone]
Fax: [phone]
Website: www.blastpromfg.com
General
All operators & maintenance personnel should read this section carefully before operating
or maintaining this equipment. These safety instructions are not meant to represent an
all-inclusive list of instances which could occur when operating this equipment. For, as
with any piece of construction equipment, serious injury can occur if proper safety
procedures are not diligently followed. All safety & warning labels posted on the machine
must be followed as well as the safety program instituted by your company. There is no
substitute for sound judgement in the operation & maintenance of this equipment. In
cases where operating personnel have insufficient knowledge or understanding of the
English language, proper translated training must be completed before use of this
equipment can take place. This manual must be kept with the machine at all times so as
to allow the operator easy access to its vital information. The united states department of
labor’s occupational safety & health administration (OSHA) provides statutory
requirements, standards, & regulations relating to the use of portable tools on
construction sites. These statutory requirements, standards, & regulations are posted on
the osha website at www.osha.gov. The operator & maintenance personnel should
understand & follow these statutory requirements, standards, & regulations.
Work Site Assessment & Inspection
Before starting blasting operations, a site assessment must be performed. During the
site assessment verify the following:
1. Work area is flat, clean, & dry, free of debris, frost-free, & has no flammable liquids
nearby.
2. Make sure that the machine will be able to clear all obstructions. Never blast a wet
floor.
3. Never blast over bolts, nuts, screws, nails, or other debris as this may result in
significant damage to the machine & serious injury to the operator.
4. Work area is well ventilated. If work area is enclosed or partially enclosed
(warehouse, parking garage, tunnels, etc.), then gasoline can never be used as
the fuel source for the shot blasting machine. This is because carbon monoxide,
which is a byproduct all internal combustion engine, can be extremely hazardous

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when allowed to accumulate in an area. An odorless, tasteless, & non-irritating
gas, carbon monoxide can quickly become lethal. As a result, vapor propane must
be used in all instances when the work area is enclosed or partially enclosed. The
work area must still be well ventilated, however, as vapor propane also releases
carbon monoxide. This means that extreme caution must still be used when using
this fuel source.
5. Each worker has a carbon monoxide monitor on their persons. These carbon
monoxide monitors should be calibrated, in working order, & should be equipped
with audible alarms that will warn workers if carbon monoxide levels become too
high. If carbon monoxide levels exceed 35 parts per million, all work must cease
immediately. This represents a potentially deadly situation which necessitates an
immediate shutdown.
6. All operators & other personnel within the work area have received training on
proper ventilation procedures & on proper operation procedures for the engine &
for other types of equipment.
7. Floors have been thoroughly inspected. Some floor or deck surfaces may be
coated with or contaminated by dangerous materials such as:
•PCBs
•Lead
•Asbestos
•Pesticides
•Solvents
•Cleaning fluids
•And/or other harmful chemicals
The dust produced from shot blasting such surfaces can create a serious health threat
to those who inhale or come into contact with the dust. The work area must be checked
for these materials before work can begin. Blastpro manufacturing, inc. does not
warrant its equipment to be suitable for, or approved for, removing dangerous materials.
It is therefore the responsibility of the contractor to confirm the safety of the work area &
the equipment with the proper authorities. It is also the responsibility of the contractor to
warn all staff members of all the potential short-term & long-term health risks associated
with inhaling & coming into contact with dangerous materials. The contractor is
responsible for protecting all workers from being exposed to dangerous materials. Since
the shot blasting machine has not been designed to remove, clean, profile, or alter any
surface coated with or otherwise contaminated by dangerous materials, Blastpro
Manufacturing, Inc. expressly disclaims any liability for injury, illness, death, or damage
that might occur or result from such improper use.
8. Operator & any other personnel in the work area are wearing safety glasses with
side shields, dust masks, ear plugs, hard hats, steel toed work boots, long sleeved
shirts, tight fitting clothing, & gloves. It is also imperative for staff to tie back long
hair & to remove all jewelry.

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9. Work area has been blocked off to pedestrians, unprotected personnel, &
untrained personnel. In the eventpedestrians, unprotected personnel, or untrained
personnel enter the work area, blasting operations are to be stopped immediately.
10.Fire extinguishers are nearby. Also, take note of the location & the contact
information of fire departments close to the work site.
11.All guards & protective shields are properly installed & secured.
12.All glass & equipment, including vehicles, are protected from steel shot. This can
be done by loosely hanging a sheet of visqueen or other protective materialin front
of the glass or equipment in a curtain-like fashion. The importance of protecting
glass & equipment from steel shot cannot be overemphasized.
13.Plug or cover all floor drains to prevent steel shot from falling into the drains.
14.This equipment is onlyto be used for commercial purposes. This equipment is only
to be operated by professional, trained, & competent operators.
15.The operator must be aware of their surroundings & use common sense. The
operator is not to operate the equipment if he is tired, distracted, or under the
influence of drugs, alcohol, or medication that decreases awareness.
Start-Up Procedures
After performing the site assessment safety procedures listed above, bring the shot
blasting machine to the work area & perform the following procedures:
•Verify that personnel are competent & that they have read & understood the safety
information in this manual. Staff must also be familiar with how to operate the
machine & with all of its components. Make certain that all personnel follow all
safety instructions & programs required by their company & by the worksite.
•Before putting the BP-9-SP in operation, make certain that the belt guards are in
good condition.
•Inspect the BP-9-SP & dust collector for damage, tears, or other signs of wear.
•Verify that all fittings & hoses are tight.
•Inspect the dust collector. Verify that the dust bin is empty, filters are clean & clear
of debris, & motors & fansare in working order. The dust collector must be emptied
at the end of each job.
•Make certain that the shot valve control lever is closed except when the machine
is actually in operation.
•Inspect all electrical cords on the BP-9-SP for damage, tears, or other signs of
wear. If electrical cords are damaged, then do not attempt to perform blasting
operations until cords have been repaired or replaced.
•Inspect the duct hose leading from the BP-9-SP to the dust collector. Make sure
hose is free of debris, hose is not cracked & that holes do not exist. If necessary,
replace hose.
•Make certain that all screws & other fasteners are tight.
•Check the shot storage hopper, the feed spout, & the blast wheel for foreign bodies
& remove them if present.

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•Check theblast wheelblades, control cage, liners, & magnets for damages & wear.
Wear grooves are acceptable until 50% of blade thickness has been worn away.
When blade thickness has been worn away by more than 50%, replace all blades.
•Check the front, side, & rear seal system & brush seals for excessive wear.
•Check the tightness of the hose connections & the condition of the hose to the
filter.
•Check the electrical connections for dirt & foreign body deposits.
•Verify that the electrical motors are free of dirt & other contaminants.
•Check the level of shot in the storage hopper. Refill hopper if necessary.
•Verify that the main power cable & the dust hose are free of damage. Replace or
repair all damaged parts before putting the machine into operation.
•Check to confirm that all machine parts are assembled safely & correctly. It is
recommended to have original spare parts & wear parts on hand. It is imperative
that the machine receive special attention & regular maintenance in order to
function properly & to operate safely.
•Connect the blast cleaning machine & the filter unit with the dust hose. Use hose
clamps at the connections.
•Connect the supply cable of the blast cleaning machine with filter unit. Connect the
electrical cable of the filter unit with the site supply.
•Make certain that the side seals are positioned correctly.
•Check that the filter dust container has been emptied.
•Always blast in a straight line away from the dust collector. Blasting in a straight
line will produce the most uniform results. Never run over anything with the BP-9-
SP. Running over an extension cord, air lines, rebar expansion joints, openings in
floor, drains, etc. With the BP-9-SP can result in serious injury to the operator
and/or damage to the equipment.
•Make certain to keep hands away from all moving parts once the machine is in
operation.
•Make certain to never stand next to the blast housing while the BP-9-SP is in
operation as blade failure could result in serious injury.
•Make certain that the shot hopper door is closed while the machine is in operation
as the BP-9-SP throws shot which could present a serious danger if the shot
hopper door is not properly closed.
•Make certain that the blast seals of the BP-9-SP are not worn out. As these seals
provide the suction that is required by the machine, they will become dislodged if
they become worn out. This will then result in shot being discharged from the
machine. It is consequently recommended that the operator make absolutely
certain that the blast seals are in good working condition before putting the BP-9-
SP into operation.
•In the unlikely event of a failure, turn main power switch to the OFF position &
make certain that the BP-9-SP & the dust collector have been disconnected from
all power sources.
If the BP-9-SP shot blasting machine is operated using a generator as the power
source, the generator must be operated in accordance with the current VDE directives
(this applies to the protective earth conductor in particular) in order to ensure that all

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safety devices are functioning & to eliminate possible damage to electrical
components.
Operational Safety Procedures
When operating the machine, perform the following safety procedures:
•The BP-9-SP shall not be put into use unless it is attached to an appropriate
exhaust hose & dust collector.
•Never operate the machine while the electrical panel door is open.
•Support personnel must keep a safe distance from the machine while it is in
operation. Do not stand in front of the machine while it is in operation.
•Since the speed of the machine determines the depth of its cut, it is advised that
the operator run a test pattern. Failure to run a test pattern could result in the
machine gouging the floor.
•The blast pattern needs to be inspected by the operator at least every ten feet as
variation in concrete means that the concrete or the coated surface may be softer
in some areas than it is in others.
•Whenever the dust collector becomes full, it must be emptied. Failure to empty the
dust collector could result in the machine losing its suction to the floor. If this
happens, then all of the shot will fall out of the shot hopper.
•Never switch off or remove the exhaust & ventilation devices when the machine is
in operation.
•A second person must be present so as to pull out the machine’s plug in an
emergency. The work area must then be sealed off using a red & white safety
chain & a danger sign. Use a tool that is insulated against voltages.
•Make certain circuit breakers can handle the electrical load required by the
machine.
•If an error occurs while the machine is in operation, it must be shut down
immediately. The cause of the error must be established immediately.
•If cables become loose or scorched, the machine must be shut down immediately.
Shut-Down Procedures
When shutting down the machine, always perform the following safety procedures:
•Shut off the shot supply by pulling the shot valve handle backwards.
•Advance the machine until you are sure that no deep holes are being blasted into
the surface.
•Turn off the breakers to the shot blasting machine & to the dust collector.
•Turn off the shot blasting machine as well as the dust collector & disconnect both
from all power sources.
•Empty all dust from the dust collector. When removing dust from dust collector,
always wear a particle mask. Concrete dust may contain particles which are
extremely hazardous! These particles should never be inhaled!

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•Empty all shot from the shot hopper on the shot blasting machine. Shot should
never be left in shot blasting machine after work is performed. Never move or
transport shot blasting machine with shot in the shot hopper as this may result in
damage to the equipment.
•Make certain that all dust has been removed from the dust hopper. Dust left in the
dust hopper has the potential to catch on fire and/or explode without notice.
•After completing work, clean all stray shot from work area. Shot can be cleaned
with a magnetic broom or with a shop vacuum. Never leave stray shot in work
area as shot represents a slip & fall hazard. Stepping & falling on steel shot can
result in serious injury or even death.
Maintenance Procedures
When performing maintenance on the shot blasting machine, make certain that the
following safety procedures are followed:
•Verify that the shot blasting machine & the dust collector are not in operation.
Attemptingto performmaintenanceoperationson theshot blastingmachineand/or
the dust collector while they are in operation can lead to serious injury or death.
•Make certain that the shot blasting machine is in the safety off position (valve is
closed, blast machine is switched off, dust collector is switched off, all drives are
at a standstill, & main plugs have been pulled).
•Never connect or disconnect power cables when voltage is present or while under
load.
•Make sure that the shot blasting machine is on a level & stable surface.
•Allow the blast wheel to stop completely.
•Verify that all moveable parts of the shot blasting machine are completely still &
secured against accidental movement.
•Make certain that all maintenance personnel are wearing lint-free cleaning cloths.
•Avoid contact with rotating motor parts, drives, or driven components.
•If repairing the underside of the shot blasting machine, then be certain to use jack
stands. Never work under equipment that is not properly blocked.
•All repairs to electrical components, including wiring, should be performed by a
licensed electrician.
•Failure to replace loose or damaged parts could cause damage to the equipment
and/or serious injury or death to the operator.
•All replacement electrical components are to be identical to the components
originally supplied with the shot blasting machine. Substitution of these parts with
other electrical parts can result in damage to the shot blasting machine & injury to
those nearby.
•All replacement electrical components are adjusted correctly.
•Make certain that electrical equipment is inspected regularly.
•All other repairs must be completed by competent, qualified personnel.
•Failure to replace loose or damaged parts could cause damage to the equipment
and/or serious injury or death to the operator.

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•Verify that aggressive cleaning products are not used.
•Make certain to never weld, flame cut/torch, or perform any grinding work on the
shot blasting machine without written authorization from the manufacturer.
•Make certain that process materials & replaced parts are disposed of safely & in
an environmentally-appropriate manner.
•After performing maintenance operations on the shot blasting machine, verify that
allsafetylabels,guards,controlpanels,housings,lids,seals,casters,& otherparts
that have been replaced are secure.
•Remove & properly dispose of all maintenance refuse such as shot from the work
area.
The tasks listed in the following check list must be completed before the machine can be
put into operation; completing these tasks is essential in order to increase the efficiency
& safety of the machine:
Blades
Check for excessive wear.
Blast Wheel
Check for balance & excessive wear.
Top Liner
Check for excessive wear.
Lower Liner
Check for excessive wear.
Shot Valve
Make sure shot is not leaking from shot hopper.
Filters
Make sure filters are secure & not clogged, ripped, or wet.
Wheels
Check for excessive wear.
Belts
Check for quality & tension.
Dust Collector Latches
Make sure latch firmly secures door.
Operating Instructions
Start Up:
1. Verify that all personnel are competent & that they have read & understood the
safety information in this manual. All personnel must follow all safety instructions
& programs required by their company & the worksite.
2. Verify that the shot blasting machine is on a level, clean, debris-free & dry surface.
Connect the hose from the dust collector to the shot blasting machine. Verify that
all clamps are secure.
3. Verify that the dust bin in the dust collector is empty & that the hose is free of
debris. The dust bin should be emptied whenever it becomes full as well as after
each & every job.
4. Verify that shot hopper contains no shot. The shot hopper should be emptied
whenever it becomes full as well as after each & every job.
5. Make certain that the feed spout, seals, liners, control cage, blast wheel, & hopper
parts are in good working condition.
6. Make certain that all electrical components are free of damage or excessive wear.
7. Make certain that the exhaust hose has no holes, leaks, deformities, or restrictions
present.

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8. Verify that the switch on the control panel of the shot blasting machine is set to the
OFF position.
9. Verify that the switch on the control panel of the dust collector is set to the OFF
position.
10.After confirming proper voltage with a voltmeter, insert the plug from the shot
blasting machine into a 230 volt electrical outlet. Site power should never drop
below 187 volts.
11.After confirming proper voltage with a voltmeter, insert the plug from the dust
collector into a 230 volt electrical outlet. For the dust collector, use an outlet which
is operated by a separate circuit breaker than is being used to power the shot
blasting machine.
12.Make sure that any hardwiring or circuit breaker changes are performed by a
licensed electrician.
13.Before loading the steel shot into machine, turn the switch on the shot blasting
machine & the dust collector to the ON position for two minutes so as to verify that
the circuit breaker will not trip.
14.Disconnect thehose from the shot blasting machine to verify that the dust collector
has proper suction.
15.After verifying proper suction, reconnect the hose to the shot blasting machine.
16.Check the seals on the shot blasting machine to verify that the seals are set at the
proper height. The seals should be rubbing the surface of the concrete or steel.
17.Insert drive pin.
18.Place a handful of steel shot in front of the shot blasting machine.
19.Push the shot blasting machine over the handful of steel shot. This will attach the
steel shot to the magnetic seals & prevent shot from escaping from the shot
blasting machine. Be certain to dispose of any shot that remains on the surface to
be blasted.
20.Pour steel shot into the shot blasting machine shot hopper to the bottom of the
screen.
21.Turn the switch on the shot blasting machine to the ON position, turn pot switch up
to desired speed & drive the shot blasting machine forward as you push the shot
valve to open the shot valve, & verify that the blast pattern is uniform. If blast
pattern is uniform, then proceed to step #23. If blast pattern is not uniform, then
release the shot valve handle to close the shot valve, turn the switch on shot
blasting machine to the OFF position, & proceed to step #21.
22.Adjust the control cage (if necessary, refer to Setting the Blast Pattern section
below).
23.Turn the switch on the shot blasting machine to the ON position, open the shot
valve, squeeze the shot valve handle & push the shot blasting machine. Be sure
to verify that the blast pattern is uniform.
24.Once blast pattern is uniform, start shot blasting.
25.After approximately ten feet of shot blasting, close the abrasive valve, stop the
machine, shut off blast wheel & inspect the recently blasted area.
26.If test area appears to have been blasted evenly, proceed to step #27.
27.If test area appears to have been blasted unevenly, then go to the section in this
manual that addresses “Setting the Blast Pattern.” After adjusting the blast pattern
to a satisfactory degree, proceed to step #27.

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28.After confirming that the shot blasting machine is blasting in an even, desired
pattern, begin to once again walk behind the machine to operate it in a forward
direction. Make certain to not exceed the amperage rating for the operating
voltage.
29.If blasting becomes inadequate, it may be necessary to adjust travel speed. A
faster speed will produce a more shallow profile while a slower speed will produce
a deeper profile.
30.Once a satisfactory profile has been obtained, continue to blast in straight lines.
Blasting in straight, consistent lines gives the best results.
31.In order to clear small obstructions on the surface being cleaned, simply pull up on
the steering handle. Caution must be used whenever lifting up on the steering
handle. This is because such a maneuver can cause the magnetic seal between
the shot & the surface to be broken. If this seal is broken, shot may escape from
the machine at a very high velocity.
Setting the Blast Pattern:
Setting the proper blast pattern is determined by trial & error. The importance of selecting
the proper blast pattern cannot be overstated. An improper or unevenly distributed blast
pattern will result in excessive blasting on either the right side or left side of the machine
& will leave shadows or “track” lines in the blast pattern.
1. Verify that the blast wheel is rotating in the direction shown on the blast housing.
2. Place a sheet of steel approximately ¼” thick under the machine & then blast with
the shot valve fully open for approximately 30 seconds. Do not move the machine
during this time.
3. Afterblasting forthirtyseconds, shutdown the machine & inspect the blast pattern.
The “hot spot” should be in the center of the width blasted. The “hot spot” can be
altered by rotating the control cage in small increments. Rotating the control cage
in a counter-clockwise direction will move the “hot spot” to the right while rotating
the control cage in a clockwise direction will move the “hot spot” to the left. If you
visualize a clock, the opening of the control cage should be set at approximately
11:00 (leading edge) & 9:00 (trailing edge) on the clock. The size of steel shot used
willimpact where the “hot spot” appears in the blast pattern. The operator will need
to adjust the control cage based upon the size of steel shot utilized.
The setting of the control cage will vary depending both on the size of shot used & on the
type of surface being blasted. When altering the position of the control cage, make sure
to only adjust it in small increments. Keep adjusting the control cage until the desired blast
pattern has been obtained. Once the desired blast pattern has been obtained, the blast
pattern should remain consistent. Four factors may affect the blast pattern. Of these, the
control cage setting is the most crucial. Otherfactors that mayalso affect theblast pattern
include the size of the shot being used, the wheel rotation, & the worn wheel kits. If
adjusting the control cage setting does not allow the desired blast pattern to be achieved,
then it is important to narrow down what is causing the problem. First, take into
consideration the size of shot being used. If this does not resolve the problem, then check

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and, if necessary, replace the wheel rotation & the worn wheel kits. The proper control
cage setting is described in the following figure:
Shut Down:
1. Close the shot valve.
2. Stop the shot blasting machine forward & turn the speed control knob to zero.
3. Turn off the blast wheel.
4. Turn off the shot blasting machine.
5. Turn off the dust collector.
6. If this is only a temporary stoppage, then check the dust collector & empty it if
necessary. If this stoppage is the result of being done for the day, then empty the
dust collector no matter the amount of dust within it.
7. If this is only a temporary stoppage, then check the shot hopper & empty it if
necessary. If this stoppage is the result of being done for the day, then empty the
shot hopper no matter the amount of shot within it.
8. Make certain that the shot blasting machine is in a safe location if it is to be left at
the job site. If the shot blasting machine is to be transported, then please refer to
the section in this manual that addresses “Transportation.”
Transportation
When transporting the shot blasting machine, it is strongly recommended that personnel
act in a manner so as to reduce the potential that damage takes place as a result of using
excessive force or of using incorrect loading & unloading procedures. Personnel must
remove any shot from the machine before it is transported. Also, the machine may only
be lifted by using the suspension eyelets; forklifts should never to be used to transport
the shot blasting machine.

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Dust Collector Function
The most fundamental part of the dust collector is referred to as the filter chamber. Air
containing dust particles enters the filter chamber from the blast head via the exhaust
hose. This air then moves into the dust collector inlet connection located on the left, front
side of the dust collector. Next, the air passes through a plenum & moves through filter
cartridges. These filter cartridges capture the dust particles & prevent them from moving
on with the air. Now dust-free, the air then passes to the clean air portion of the dust
collector where it is subsequently released back into the environment by way of the
silencer box.
Dust Collector Maintenance
The dust collector must be examined habitually. This is because adequate ventilation is
essential for the dust collector. It is therefore vital that the following areas are routinely
examined:
•Adequate ventilation is available at all times. Ventilation irregularities can have a
negative effect on the efficiency of both the shot blasting machine & the dust
collector. Poor ventilation results in excessive wearing of the blast wheel & liner
wear. Despite conventional wisdom, shot is not the primary cause of wear & tear
to shot blasting machines. In actuality, it is the dust & other contaminants produced
by these machines thattypically cause their parts to wear prematurely. As a result,
it is essential that proper ventilation be supplied to the machine at all times by
keeping the dust collector free of excessive contamination.
•The hose connections between the blast head & the dust collector must be tight.
•The hose must be in good condition. Flattened spots, holes, & wear spots should
be corrected without haste. Hose must be replaced if necessary.
•Filter cartridges must be kept in good, working condition.
If the dust collector is not in proper, working order, then this can have a detrimental effect
on the entire system. Improper ventilation can result in inadequate abrasive cleaning
which hastens blast wheel & liner wear. It is, consequentially, essential that the dust
collector be well maintained. A dust collector that receives timely, regular maintenance
will result in less shot contamination which will help to both reduce operating costs &
increase overall effectiveness. Before inspecting or removing filter cartridges, make sure
that the shot blasting machine shot blasting machine is on a level surface. Also, make
sure that the machine has been properly immobilized. Finally, verify that shot blasting
machine is in the off position & has been disconnected from all power sources.
Inspection Timetable
The shot blasting machine contains parts that are continually exposed to steel shot
moving at high rates of speed. The combined effect of contact with steel shot traveling at
high rates of speed & exposure to concrete dust causes these parts to deteriorate. As a
result, the operator or maintenance personnel should inspect the machine wear parts

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prior to operation & replace these parts when necessary. Wear parts & inspection times
on the machine, other than inspection prior to use, are listed below:
Part
When to Inspect
Evidence of Wear
Feed Spout
50 hours
Thin Spots
Blast Wheel
5 hours
Blades deteriorated > 50%
Control Cage
5 hours
Deteriorated edges
Blast Wheel Hub
10 hours
Missing pins/deterioration
Liners
50-75 hours
Warping, holes, deterioration
Blast Housing
50-75 hours
Thin sections or other deteriorations
Deflector Plate
50 hours
Thin spots; wearing at welds
Separator
100 hours
Thin spots; wearing at welds; warping
Top cover
50 hours
Inside edge erosion
Parts of the machine which should also be inspected regularly but are not exposed to
steel shotare the control panel, motor, electriccords,dust collector hose, filters, & motors.
If any of these components show signs of wear, they should be repaired so that they are
in the same working condition as when they were new. If they cannot be repaired, then
they should be replaced immediately. Prior to any repair work, secure the machine
against unintentional switching-on. Put the machine in the safety off position. The
supplier’s operating & maintenance instructions should also be followed during service &
maintenance procedures.
Blast Wheel Removal & Installation
When theblades on the blast wheel aredeteriorated by50% or more, then theblast wheel
should be replaced. To replace the blast wheel, perform the following steps:
1. Verify that the shot blasting machine is turned off & disconnected from all power
sources.
2. Remove the feed spout & the control cage.
3. Remove the four mounting nuts, flat washers, & lock washers that secure the
control cage mounting assembly to the blast housing. Do not loosen any other
screws on the control cage mounting assembly since they are used to set the gap
between the blast wheel & the control cage. Remove the control cage mounting
assembly.
4. Remove the socket head cap screw & lock washers from the blast wheel & remove
the blast wheel.
5. Check the wheel hub for wear & replace if necessary.
6. Install new blast wheel using the new socket head cap screw & lock washers that
are included in the wheel kit. Be sure that the new blast wheel is seated properly
on the wheel hub before tightening the socket head cap screw.
7. Reinstall the control cage mounting assembly to the blast housing.
8. Install the new control cage that was included with the wheel kit. Rotate the wheel
by hand to be surethat the control cage &the wheeldo no touch.The initial window
setting for the control cage should be between 8:30 & 10:30.

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9. Reinstall the feed spout.
10.Energize the blast motor momentarily to check for good balance & proper
clearance before shot blasting.
11.See the section in this manual about “Setting the Blast Pattern” before adjusting
the control cage.
Only blast wheels manufactured by Blastpro Manufacturing, Inc. should be used by the
shot blasting machine. Other blast wheels that have not been tested by Blastpro
Manufacturing, Inc. could result in damage to the equipment or injury to the operator.
Fault Diagnostics
Problem
Solution
The shot blasting
machine will not operate.
First, make sure the machine is being supplied power &
that this power is within proper parameters. Second,
verify that the shot blasting machine & dust collector are
turned on. Third, with shot blasting machine as well as
dust collector turned off & all power sources
disconnected, open panel door on shot blasting machine
& check the status of the Control Power Overload in each
control panel. Make sure that the overload device is in
the on position.
Breaker is tripping when
shot blasting machine &
dust collector are turned
to the ON position.
The shot blasting machine & dust collector should be
powered by separate breakers. Find electric outlets with
separate breaker switches & use accordingly. Check
circuit breaker sizes.
The shot blasting
machine is vibrating
excessively.
Check blast wheel immediately. Excessive vibration is
usually caused by the blast wheel being out of balance
due to it being worn or by blades being broken or
chipped. Install new blast wheel kit. Failure to install new
wheel kit in this instance could lead to serious damage to
machine.
If blast wheel doesn’t seem to have any problems, check
ventilation system. A ventilation system that requires
maintenance may cause the shot blasting machine to
shake excessively.
The shot blasting
machine is creating
excessive noise.
This problem is most likely caused by an improper
alignment of the blast wheel & control cage. Check
alignment of blast wheel & control cage immediately &
verify that there is adequate clearance between the blast
wheel & the control cage.

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If blast wheel & control cage are aligned probably but
excessive noise persists, it could be that other rotating
parts are coming into contact with each other. Check
bearing units, belts, sheaves, motor mounting, wheel
housing, & any other associated parts to be sure that
they are aligned & safely secured.
The shot blasting
machine is taking longer
to shot blast than before.
It could be one of several problems. First, check to see
how shot is being fed to the wheel. It is important to make
sure that enough shot is getting to the wheel. Second,
make sure storage hopper has enough shot within it.
Third, verify that shot is not contaminated. Shot should
be fairly clean & ventilation system should be working
properly. Fourth, check shot feed & shot control valve.
Obstructions in the shot feed or shot valve can slow
down shot blasting. Fifth, check wheel impeller & control
cage. Excessive wear may warrant replacing wheel kit.
Sixth, investigate drive belt & make sure it has proper
tension, correct alignment, & is not worn out. Seventh,
look to see if blast pattern is still consistent. If it is not,
make sure that the blast wheel is sitting properly in the
wheel hub. & finally, eighth, check the wheel. Make sure
that the shot valve is working properly.
The shot blasting
machine is creating
excessive wear on liners
& blast housing.
Adjust control cage so that the “hot spot” is centered in
work area rather than on liners or housing.
The shot blasting
machine is dropping an
excessive amount of steel
shot.
Verify “hot spot” is centered properly & adjust control
cage as necessary. Verify seals do not have excessive
wear, feed spout is aligned properly, & shot valve is
closing when shot lever is released. Verify dust collector
has adequate suction.
The shot blasting
machine will not move
forward.
Make certain that the drive pin has been installed. Check
wiring plugs & replace any faulty components
The shot blasting
machine is difficult to
push or gets stuck in
areas.
Verify that the seals are positioned properly & that they
are not too close to the floor. Raise height of seals. Pull
up on steering handle to clear small obstructions on the
work surface. Use extreme caution when doing so as this
maneuver may cause shot to shoot out of the machine &
into the work area.
The shot blasting
machine is not blasting
properly. Slow machine down so that a deeper profile is created.

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The shot is contaminated.
Increase the speed of the shot blasting machine. This will
reduce shot flow to the wheel. Also, check fan rotation,
exhaust hose & connections, & air control gate to be sure
that enough air flow is being delivered by the exhaust
fan.
The shot blasting
machine or dust collector
is emitting concrete dust.
Verify there are no holes in the duct hose leading from
the shot blasting machine to the dust collector. Verify
filters in the dust collector are properly installed & are
clean. If necessary, replace filters in dust collector.
Fan motor overload trips. Attach an end cap into open port. Also, check electrical
system.

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Schematics

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