MBA TORNADO User manual

Media Blast & Abrasives,
Wet & Dry Blast – Siphon & Direct Pressure – Light Duty & Production – Dust Collectors & Pollution Benches
591 W. Apollo St. Brea CA 92821
[phone] [phone] fax
[e-mail] e-mail
OPERATOR’S MANUAL
PC Work Bench
TORNADO
PC – PCE – Space Saver Tornado Workbench and Workstation

MPORTANT INFORMATION
TORNADO Workbench
You have just received the Media Blast Tornado (pollution control) workbench. This machine was designed by
Media Blast, a company that has been building machinery since 1977. The information that follows will help
when setting up the machinery.
The Tornado Workbench is available in stand-up and sit-down models, open and semi-enclosed tops with
single and dual cartridge models. The Space Saver unit uses a pre-separator with cloth dust bag filtration.
The Tornado workbenchs have been designed for the collection of nuisance dust created by jobs involving
grinding, polishing, sanding, wire brush cleaning and more. The units are totally self-contained, eliminating
costly installation. The Tornado downdraft workbench is a portable and cost effective machine that is very easy
to operate and maintain. However, there are important issues which you should be aware:
WARNING. Because of the potential fire or explosion hazard, the manufacturer does not recommend
using the downdraft workbench for welding or spark producing applications such as grinding or sanding
of aluminum, titanium, or magnesium unless the downdraft bench is equipped with wet dust collection.
It is the responsibility of the buyer to always check the material MSDS sheets for any change or special
requirements for the collection of individual dust applications. These units are for the collection of
Nuisance Dust only and applications requiring the collection of dust must follow collection guidelines
supplied by the local Air Quality Board.
ALWAYS WEAR SAFETY GOGGLES AND EAR PROTECTION WHEN OPERATING ANY
MACHINE. Safety first is the best policy.
STANDARD BLOWER, 700 CFM… FRACTIONAL MOTOR… 120 VOLT SINGLE PHASE 60 CYCLE
ELECTRICAL. Optional blower assemblies are available…always check the machine name tag for the
workbench electrical requirements. All Space Saver models include 550 cfm blower assemblies.
THREE PHASE ELECTRICAL. Check all three phase blower installations for proper blower rotation. It
is necessary during installation of any three phase single power source blower upgrade to make sure
and check for proper blower rotation. The exhaust blower will move 1/3 cfm capacity during reversed
rotation.
MACHINE OPTIONS INCLUDE ELECTRICAL CORD LOCK-OUT AND ELECTRICAL
DISCONNECT. Customer to supply electrical lockout when machine is installed if not purchased with
this option. This permits future maintainence of the machine and allows electrical lock-out.
GOOD HOUSEKEEPING IS REQUIRED. Applications vary and it is the responsibility of the customer
to maintain a good housekeeping prodecure when operating this machine.
THIS MACHINE IS NOT AN ASTRAY!. No smoking at any time during the operation of this machine.
USE MBA REPLACEMENT COMPONENTS. Replacement of worn components with parts not
purchased from MBA will void the warranty. The components used by Media Blast are of the highest
quality and will provide the longest serviceable life.
REVIEW THE ENTIRE OPERATIONAL GUIDE PRIOR TO MACHINE OPERATION. Most problems
associated with the machine can be identified by simply consulting the Troubleshooting Guide.
However, if your problem cannot be found in the Troubleshooting Guide, please give us a call. Nearly
all equipment malfunction issues can be resolved over the telephone. Many times, it does not even
require the purchase of new components!
DOWNDRAFT DESIGN. Air movement is very often misunderstood. The basic design of any
downdraft bench creates airflow in a downward direction that prevents the escape of free-floating dust
particles during operation. Large heavy particles drop into the collection area when working on the
bench work grate. Small free-floating dust is directed down by the design of the top assembly.
Downdraft air movement is almost impossible without direction of airflow created by the basic top
section design of the machine.
Open tops are for general dust control and semi-enclosed tops are for accelerated dust control.
Media Blast & Abrasives, Inc.

NOTE:
Some units require installation of a customer-supplied electrical lockout. Available as a
machine option and can be added during machine installation.
QUICK OPERATION SHEET Tornado Workbench
The infromation that follows will be used to get your new Tornado machine operational in the shortest period of time. Use this sheet for the intial
machine set-up and operation. You may refer to this sheet at any time, for more detailed operational instructions refer to the main operational
manual.
FIRST
•Remove the machine from the shipping crate or pallet being careful to wear gloves during the process.
•Remove any lag bolts attaching the machine to the shipping pallet.
•Lift the machine vertically allowing the shipping pallet to be removed, and then lowered. Always place the machine as close to the
installation area before removing it from the shipping pallet.
•nstall the machine allowing adequate clearance for machine service including operator clearance, filter service and dust pan removal
when equipped. f the machine is equipped with a semi-enclosed top assembly, locate the window to prevent reflective light from reflecting
on the panel.
•f the machine has been ordered in a sit-down configuration, the rear legs of the machine must be bolted to the floor. This will prevent any
possibility of tipping created by excessive part loading. Never overload the bench. Sit-down models are rated at 100-pound load capacity
maximum.
After machine placement follow the items listed below:
•Remove all items from inside the cabinet.
•Connect to electrical power source. Electrical schematic located inside main electrical enclosure.
•All Space Saver models require the installation of the cloth dust bag. The bag has already been attached to the dust collection pail.
Holding the top of the bag with the clamp already installed over the outside of the dust bag inlet, slip the dust bag inlet over the inlet
holding mount located on the rear of the unit. This holding mount already has the flexible blower exhaust hose attached. Tighten the dust
bag holding clamp and position the dust collection pail for easy access and service.
•Check exhaust blower for proper rotation if the unit includes high voltage electrical upgrade package.
The machine is now almost operational:
•Turn the machine on-off switch to the on position. The switch is located on the right side of the cabinet. All Space Saver units have the
switch located in the machine leg, right side.
•Place the parts to be processed on the operator bar grate. The front grate assembly is the main air intake for the collector. Stack any
parts not needed on the metal shelf supplied at the back of the work surface or simply the back of the work grates if this is a Space
Saver. Parts that occupy surface area on the grates increase the downdraft air velocity by reducing the surface area of the grating and
increasing air velocity.
•f the machine is equipped with a semi-enclosed top assembly, the front observation panel can be raised to permit placement of larger
parts. Never operate a semi-enclosed top machine with the view panel open. This panel is for operator safety and must be closed
during machine operation.
HOUSEKEEPING
•At the end of each shift the bench should be cleaned and all collected dust removed. Remove the front bar grates and sweep any material
down into the bench assembly or hopper assembly.
•Clean any collected material from the perforated metal screens located below the operator bar grates.
•On single cartridge units, remove the front access cover by removing the two access knobs holding the cover in place. Reach inside the
open access and remove the dust collection pan and empty the pan assembly into a waste container.
•On dual cartridge units, open the side access door and remove the dust collection pan and empty the pan assembly into a waste container.
•On Space Saver units place a container under the main hopper and remove the 2-1/2” drain cap. The Space Saver is complete with a pre-
separator that collects all dust particles 30-50 microns in size and stores the dust inside the machine hopper. This prevents the dust from
transferring into the final dust bag assembly.
Replace the machine filter cartridge or dust bag any time the airflow has been reduced and the air loss is noticeable. f the machine is equipped with
magnahelic gauge, replace the filter cartridge when the gauge reaches 3” S.P.W.G. reading. t is advised that the filter(s) be replaced on a yearly
basis to prevent air loss due to filter resistance.

f the unit is equipped with the optional HEPA after filtration, use the magnahelic gauge supplied to indicate when the HEPA filter requires
replacement. The HEPA filter is not cleanable and requires replacement when the magnahelic gauge reaches 2.5” S.P.W.G. f equipped the
magnahelic gauge for the primary filter is located on the left side of the unit top panel and the HEPA magnahelic is located on the right side of the
unit.
Space Saver units have a cleanable cloth dust bag. To clean this filter simply turn the machine off and taking a handful of cloth located about 1 foot
below the bag top, shake the bag for about 10 seconds in a rapid back and forth direction. This will release any dust collected on the inside of the
dust bag dropping the dust into the collection pail. t is not necessary to empty the collection pail until the pail is full. Clean the filter on a regular
time interval determined by the dust load and reduced machine airflow.
Refer to the operator’s manual for primary and HEPA filter replacement.

INSTALLATION
Unit Placement 2
Electrical Requirements and Connection 2
OPERATION 4
Safety Glasses 4
No Smoking Area 5
SERVICE 8
Minimum Recommended Maintenance Schedule 8
Primary Filter Replacement 8
HEPA Filter Replacement (cabinet option) 8
Dust Pan Removal 9
Light Bulb Replacement 9
TROUBLE SHOOTING YOUR TORNADO 15
PARTS LIST & SYSTEMS DIAGRAMS 20
TABLE OF CONTENTS

UNIT PLACEMENT: Allow adequate clearance for loading and unloading the blast bench. Always transport
the unit on the shipping skid when possible. When installing a sit- down model, use the rear leg anchors to bolt
the machine to the floor. This will prevent knee overhang leverage and ensure against table overload. All sit-
down models include knee clearance overhang and are not intended for items weighing more than 100
pounds. Always leave adequate clearance for opening and removal of all collection pans located inside the
unit and accessed using the refrigerator access doors and removable access covers.
Units equipped with optional features including HEPA after filtration need additional service access for filter
removal and replacement. This is in addition to the standard filter replacement access.
ELECTRICAL REQUIREMENTS AND CONNECTION: Please check unit for electrical requirements.
Many MBA blast cabinets are wired for standard 120V service. However, larger exhaust blowers and special
configurations may require the machine to be wired to a different voltage. Client requirements were
determined prior to the machine being manufactured. Cabinets with optional three phase electrical require
hard wiring the cabinet to facilitate exhaust blower rotation in one direction only. NOTE: Check arrow located
on the blower housing for motor direction.
WARNING – Follow OSHA approved lock out and tag out procedures before connecting any
electrical portion of this machine. The end user shall provide the appropriate means of
disconnecting and locking off the electrical to this machine.
OPERATION
ALWAYS WEAR SAFETY GOGGLES AND EAR PROTECTION WHEN OPERATING ANY MACHINE.
The Tornado workbenchs have been designed for the collection of nuisance dust created by jobs involving
grinding, polishing, sanding, wire brush cleaning and much more.
Because of the potential fire or explosion hazard, the manufacturer does not recommend using the downdraft
workbench for welding or spark producing applications such as grinding or sanding of aluminum, titanium, or
magnesium unless the downdraft bench is equipped with wet dust collection. It is the responsibility of the buyer
to always check the material MSDS sheets for any change or special requirements for the collection of
individual dust applications.
Some units are available with HEPA after filtration for additional filtration control. This filter should be installed
when hazardous materials are being collected (e.g. chromium, cadmium, nickel, zinc, lead, asbestos, or
radioactive materials)
Listed below are some simple rules to observe when operating the Tornado Workbench.
•Operation of the Tornado Workbench and Tornado Workstation is simple. Never remove any of the
standard top assembly during machine operation. The top assembly is critical for direction of the
downdraft air movement required for dust capture.
•Bring all secondary utilities from the rear of the unit. This will ensure a clear work zone during machine
operation.
INSTALLATION

•Keep material on the bar surface workgrate. This is the primary downdraft area. The velocity is
greatest on the work grate surface. Never raise the part off the workgrate, this will result in reduced
table capture velocity.
•Direct high-velocity dust to the rear of the bench enclosure. This will help prevent dust escape during
machine operation.
•Applications and dust loads will vary and it is the responsibility of the ooperator to maintain good
housekeeping prodecures when operating this machine.
•No smoking at any time during the operation of this machine.
WARNING –
Follow OSHA approved lock out and tag out procedures before connecting any elec
REPLACEMENT OF THE PRIMARY FILTER (s). Primary filter replacement is simple. Open the
filter access door, (side access for single cartridge units and front access for dual filter units) loosen
and remove the filter cartridge tightening-retaining knob. The filter cartridge is supported at the rear
with a centering ring located on the open sealing end of the filter cartridge. After removing the
tightening knob, slide the filter cartridge from the unit. Replace with new filter cartridge making sure
to center the filter on the rear centering ring and insert the tightening rod through the filter cartridge
end cap.
NOTE
Each time the cartridge is replaced always replace the filter cartridge tightening shaft hole with a new
sealing washer. This washer is rubber and must be replaced to ensure proper tightening of the rod
hole seal.
MINIMUM RECOMMENDED MAINTENANCE
SCHEDULE FOR YOUR MACHINE
(replacement schedule can vary depending on equipment usage and other factors)
MAINTENANCE PROCEDURE
EVERY 4 HRS
DAILY
WEEKLY
MONTHLY
SEMI-
ANNUAL
ANNUALLY
Clean Work surface area
X X
Remove and Empty Dust Collection Pan
X
Check Magnahelic Gauges for Ma
ximum
Setting
X
Replace Primary Filter Cartridges
(dust loads may vary by application)
X
Replace HEPA Replacement 2.5”max.
S.P.W.G.
(Magnahelic gauge readout indicated)
Clean Operator View Panel
(PCE model only)
X
Check Machine L
ighting
X
SERVICE

REPLACEMENT OF THE HEPA FILTER (Machine Option). The HEPA filter is held into position
with the hold down bar assembly.
•Loosen the hold down bar by loosening the set collar retaining screw.
•Raise the holding bar and tighten in the up position.
•Open the HEPA access door by releasing the toggle latch.
•Remove the protective plastic bag from the shipping box of the new filter. Place the lip of the
plastic bag around the outside edge of the doorframe. Hold the plastic bag in place with
several pieces of masking tape. From the bottom edge of the bag, reach for the handle
located on the HEPA filter. Pull the HEPA filter into the bag, ensuring that the weight of the
HEPA filter is supported. When the HEPA filter has cleared the housing, pull the plastic bag
away from the doorframe and lower the filter.
NOTE: Be careful to not allow the open end of the plastic bag to point down thus releasing the dust.
Use the nylon tie strap (enclosed with the plastic bag) to tie closed the end of the plastic bag.
NOTE: The plastic bag is not provided as an approved method of protective encasement for disposal
of hazardous waste. Please follow all Federal, State and local laws pertaining to hazardous waste
disposal.
•Remove the new HEPA filter from the shipping box. NOTE: Be certain not to bump the
packing into sharp objects that may tear the packing material. Place the HEPA filter inside the
filter housing with the gasket pointed down. When the gasket is securely in place, loosen and
slide down on the tightening bar assembly and tighten the setscrew holding the HEPA filter in
place. Check the HEPA access door seal, replace if damaged, close and latch the door.
DUST PAN REMOVAL. Open the primary filter access door on all dual filter units, front location.
Remove, empty and replace the dust collection pan. On single cartridge units removing the front
access cover allows removal of the dust collection pan.
LIGHT REPLACEMENT. The standard light for the Tornado Workbench and Workstation is a dust
tight fluorescent lighting fixture complete with cover. Removal of the light cover is necessary for bulb
replacement. Loosen the four cover spring clips and remove the light cover taking care not to
damage the cover seal. Replace the cover after light replacement.

TORNADO
Single Cartridge Units
26
25
24
18
7
1
8
9
10
17
16
12
28
30
27
31
8
8
8
3
3
8
8

Tornado (single cartridge)
Bubble # New Part # Old Part # Description List
1 108-09-002 106-002 Fluorescent Bulb 5.00
3 106-25-001 106-017 Bar Grate Work Surface 36”W (fiber) 228.00
3 106-25-002 106-018 Bar Grate Work Surface 47”W (fiber) 285.00
3 106-25-003 Bar Grate Work Surface 36”W (steel) 141.00
3 106-25-004 Bar Grate Work Surface 47”W (steel) 188.00
7 101-06-025 Door Latch 7.00
8 100-09-042 106-005 Power On/Off Switch 10.00
8 100-09-041 106-004 Switch Enclosure 12.00
8 100-09-031 Transformer 60.00
8 100-09-103 Motor Contactor 65.00
8 100-09-059 120V Fuse 1 AMP 10.00
8 100-09-104 Adjustable Motor Heater (indicate overload range) 40.00
9 100-05-312 106-006 770 cfm Impeller, 10” 142.00
9 100-05-313 106-007 1160 cfm Impeller, 12” 156.00
10 100-05-111 106-008 3/4hp 770 cfm Blower Motor (120V) 147.00
10 100-05-121 106-009 2hp 1160cfm Blower Motor (220V/ 1Phase) 236.00
10 100-05- 122 106-010 2hp 1160cfm Blower Motor (230V/ 3Phase) 236.00
12 108-09-003 106-003 Outside Light Fixture (obsolete but available) 70.00
12 108-06-061 106-001 Plastic Light Shield for 108-09-003 10.00
12 108-09-013 Light Fixture, Hazardous Duty 2 Bulb 125.00
12 108-06-104 Light Cover Hazardous 60.00
16 100-08-141 Thumb Screw 4.50
17 100-09-100 NEMA Electrical Enclosure (single power source) 90.00
17 100-09-031 Transformer 60.00
17 100-09-103 Motor Contactor 65.00
17 100-09-059 120V Fuse 1 AMP 10.00
17 100-09-104 Adjustable Motor Heater (indicate overload amp.) 40.00
18 100-06-044 Super Silencer (optional on 770 cfm blower) 125.00
24 108-08-117 Deflection Shield (36” wide) 75.00
24 108-08-118 Deflection Shield (47” wide) 85.00
24 108-08-119 Deflection Shield (60” wide) 95.00
25 100-08-138 106-015 Cartridge Filter Mounting Rod (two required) 4.50
26 100-08-141 Thumb Screw 4.50
27 108-08-122 106-019 Cartridge Filter Mounting Bracket 49.00
28 108-08-015 Fire Retardant Cartridge Filter 109.00
30 108-06-121 Plexiglas View Window (36”W) 88.00
30 108-06-122 Plexiglas View Window (47”W) 98.00
30 108-06-123 Plexiglas View Window (54”W) 102.00
30 108-06-124 Plexiglas View Window (60”W) 108.00
31 100-11-040 3/8 x 1/2 x 25’ Foam Gasket 21.00
31 100-11-003 1/4 x 1/2 x 50’ Foam Gasket 16.00
1160 cfm Single Power Source Electrical