Harbor Freight Tools 92427 User Manual
INDUSTRIAL BLAST CABINET
WITH DUAL DOORS
Model 94274
ASSEMBLY AND OPERATING INSTRUCTIONS
Diagrams within this manual may not be drawn proportionally.
Due to continuing improvements, actual product may differ slightly from the product described herein.
Distributed exclusively by Harbor Freight Tools®.
3491 Mission Oaks Blvd., Camarillo, CA 93011
Visit our website at: http://www.harborfreight.com
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
Copyright© 2006 by Harbor Freight Tools®. All rights reserved. No portion of this
manual or any artwork contained herein may be reproduced in any shape or form
without the express written consent of Harbor Freight Tools.
For technical questions or replacement parts, please call 1-800-444-3353.
PRODUCT SPECIFICATIONS
Electrical Requirements 120 VAC / 60 Hz / 40 Watts (Cabinet)
110 VAC / 60 Hz / 12.0 AMPs (Vacuum Motor)
Power Cord Type: 18 AWG x 3C SJT x 76” Long
Power Plug Type: 3-Prong, Grounded
Fluorescent Light Type: 18 Watt, 23” L x 1” Diameter (Qty. 2)
Working Pressure 50 ~ 125 PSI
Pressure Gauge Scale 0 ~ 150 PSI: Numbered @ 30 PSI Increments / Marked @ 5 PSI Increments
0 ~ 1 MPa: Numbered @ 0.2 MPa Increments / Marked @ 0.01 MPa
Increments
Air Consumption 13 ~ 15 SCFM @ 80 PSI
Air Inlet Size 3/8”-18 NPT
Abrasive Capacity Approximately 15 Pounds
Overall Dimensions 51” Wide x 36” Deep x 65-3/4” High (w/Dust Collector)
Inner Cabinet Dimensions 47-3/4” Wide x 24” Deep x 22-1/2” High (at Rear)
47-3/4” Wide x 24” Deep x 14” High (at Front)
Side Door Dimensions 20” Wide x 19-1/2” High (at Rear) / 20” Wide x 10” High (at Front)
Front Window Panel
Dimensions
Blast Gun Dimensions 6-1/2” Long x 1-3/4” Wide x 7-3/8” High
Additional Features Foot Pedal Operated / Dual Side Doors
Accessories 6mm Ceramic Nozzle / 7mm Ceramic Nozzle
Unit Weight 250 Pounds (Empty)
46” Wide x 13-1/2” High
SAVE THIS MANUAL
You will need this manual for the safety warnings and precautions, assembly, operating,
inspection, maintenance and cleaning procedures, parts list and assembly diagram.
Keep your invoice with this manual. Write the invoice number on the inside of the front
cover. Keep this manual and invoice in a safe and dry place for future reference.
GENERAL SAFETY RULES AND PRECAUTIONS
WARNING!
READ AND UNDERSTAND ALL INSTRUCTIONS
Failure to follow all instructions listed below may result in
electric shock, re, and/or serious injury.
SAVE THESE INSTRUCTIONS
WORK AREA
1. Do not operate power tools in explosive atmospheres, such as in the
presence of ammable liquids, gases, or dust. Power tools create
sparks which may ignite the dust or fumes.
REV 08a
SKU 94274 For technical questions, please call 1-800-444-3353 PAGE 2
Keep bystanders, children, and visitors away while operating a power tool. 2.
Distractions can cause you to lose control. Protect others in the work area from
debris such as chips and sparks. Provide barriers or shields as needed.
PERSONAL SAFETY
Stay alert. Watch what you are doing, and use common sense when 1.
operating a power tool. Do not use a power tool while tired or under the
inuence of drugs, alcohol, or medication. A moment of inattention while
operating power tools may result in serious personal injury.
Dress properly. Do not wear loose clothing or jewelry. Contain long hair. 2.
Keep your hair, clothing, and gloves away from moving parts. Loose clothes,
jewelry, or long hair can be caught in moving parts.
Avoid accidental starting.3. Be sure the Power Switch (1A) is in its “OFF”
position before performing any service, maintenance, or cleaning procedures
on the unit.
Remove adjusting keys or wrenches before turning the Blast Cabinet on. 4. A
wrench or a key that is left attached to a moving part of the machine may result in
personal injury.
Do not overreach. Keep proper footing and balance at all times. 5. Proper
footing and balance enables better control of the power tool in unexpected
situations.
Use safety equipment. 6. Always wear ANSI-approved safety impact eye glasses
under a full face shield and a respirator when operating the Blast Cabinet. Also,
wear heavy duty work boots, long trousers, and long sleeve shirt.
TOOL USE AND CARE
Do not force the tool. Use the correct tool for your application. 1. The correct
tool will do the job better and safer at the rate for which it is designed.
Do not use the Blast Cabinet if the Power Switch (1A) does not turn the tool 2.
on or off. Any tool that cannot be controlled with its power switch is dangerous
and must be replaced.
Store idle tools out of reach of children and other untrained persons. 3. Tools
are dangerous in the hands of untrained users.
Maintain tools with care. 4. Properly maintained tools are less likely to bind and are
easier to control. Do not use a damaged tool. Tag damaged tools “Do not use”
until repaired.
SKU 94274 For technical questions, please call 1-800-444-3353 PAGE 3
Check for misalignment or binding of moving parts, breakage of parts, and 5.
any other condition that may affect the tool’s operation. If damaged, have
the tool serviced before using. Many accidents are caused by poorly maintained
tools.
Use only accessories that are recommended by the manufacturer for your 6.
model. Accessories that may be suitable for one tool may become hazardous
when used on another tool.
SERVICE
Tool service must be performed only by qualied repair personnel. 1. Service or
maintenance performed by unqualied personnel could result in a risk of injury.
When servicing a tool, use only identical replacement parts. Follow 2.
instructions in the “Inspection, Maintenance, And Cleaning” section of this
manual. Use of unauthorized parts or failure to follow maintenance instructions
may create a risk of electric shock or injury.
SPECIFIC SAFETY WARNINGS AND PRECAUTIONS
WARNING! 1. Always wear ANSI-approved safety impact eye glasses under
a full face shield and a respirator when operating the Blast Cabinet. Also, wear
heavy duty work boots, long trousers, and long sleeve shirt.
Stay within air pressure capacity (50 ~ 125 PSI). 2. Never operate the Blast
Cabinet above 125 PSI.
Keep children away. 3. Children must never be allowed in the work area. Do not let
them handle equipment, tools, extension cords, or air hoses.
Store idle equipment. 4. When not in use, the Blast Cabinet must be stored in a
dry location to inhibit rust. Always lock up the machine and keep out of reach of
children.
Use the right tool for the job. 5. Do not attempt to force small equipment or
attachments to do the work of a larger industrial equipment and attachments.
There are certain applications for which this product was designed. It will do the
job better and more safely at the rate for which it was intended. Do not modify this
product, and do not use this product for a purpose for which it was not intended.
Dress properly. 6. Do not wear loose clothing or jewelry as they can be caught in
moving parts. Protective, electrically non-conductive clothes and non-skid footwear are recommended when working. Wear restrictive hair covering to contain
long hair.
Do not overreach. 7. Keep proper footing and balance at all times. Do not reach
over or across running tools or air hoses.
SKU 94274 For technical questions, please call 1-800-444-3353 PAGE 4
Disconnect air hose and release any built-up air pressure. 8. Never service the
Blast Cabinet or disassemble with the air hose attached. Always release any
built-up air even after disconnecting hose. Disconnect the Blast Cabinet when
not in use.
Stay alert. 9. Watch what you are doing. Use common sense. Do not operate any
tool or equipment when you are tired.
Check for damaged parts. 10. Before using any tool, any part that appears damaged
should be carefully checked to determine that it will operate properly and perform
its intended function. Check for alignment and binding of moving parts,
any broken parts, and any other condition that may affect proper operation. Any
part that is damaged should be properly repaired or replaced by a qualied
technician.
Replacement parts and accessories. 11. This product is to be repaired and serviced
only by a qualied technician. When this product is serviced, only identical
replacement parts should be used. Use of any other parts will void the warranty.
Only use accessories intended for use with this tool. Approved accessories are
available from Harbor Freight Tools.
Do not operate this product if under the inuence of alcohol or drugs. 12. Read
warning labels if taking prescription medicine to determine if your judgement or
reexes are impaired while taking drugs. If there is any doubt, do not operate the
tool.
Maintenance. 13. The maintenance outlined in the “Maintenance” section should be
performed regularly. For your safety, this product should be serviced or repaired
regularly only by a qualied technician.
Compressed air only. 14. Use clean, dry, regulated, compressed air at between 50
and 125 PSI. Never use oxygen, carbon dioxide, combustible gases, or any other
bottled gas as a power source for this product.
Avoid working alone. 15. If an accident happens, an assistant can bring help.
Maintain labels and nameplates on the Blast Cabinet. 16. These carry important
information. If unreadable or missing, contact Harbor Freight Tools for a replacement.
Maintain a rm grip on the Blast Gun when in use.17.
Never point the Blast Gun toward yourself, other people, or animals. 18. Keep all
people and animals safely away from the work area.
Industrial applications must follow OSHA requirements. 19.
SKU 94274 For technical questions, please call 1-800-444-3353 PAGE 5
Whenever possible, perform an abrasive blasting test on a small area of the 20.
object to be blasted. If necessary, adjust the distance to the object and/or
change the Nozzle of the Blast Gun for more effective results.
Make sure to read and understand all safety warnings and precautions as 21.
outlined in the manufacturer’s manual for the object you intend to blast
with abrasives.
Avoid unintentional starting. 22. Make sure the Power Switch (1A) on the Blast
Cabinet is in its “OFF” position when the tool is not being used.
WARNING! NEVER use 23. sand as a blasting medium. Abrasive blasting
with media containing crystalline silica can cause serious or fatal respiratory
disease. Exposure to crystalline silica may cause silicosis (a serious lung
disease), cancer, and death. Exposure to aluminum oxide (a dust generated
from material removing processes) can result in eye, skin, and breathing
irritation. Always use an ANSI-approved respirator, safety impact eye
glasses, and a full face shield. Avoid skin exposure. Proper ventilation in
the work area is required. Read and understand the ten recommended measures
below to reduce crystalline silica exposure in the workplace and prevent silicosis
and silicosis related injuries and deaths.
The following ten measures are recommended to reduce crystalline silica
exposures in the workplace and prevent silicosis and silicosis related injuries and
deaths:
Prohibit silica sand (or other substances containing more than 1% crystalline 1.
silica) as an abrasive blasting material and substitute less hazardous
materials.
Conduct air monitoring to measure worker exposures.2.
Use containment methods such as blast-cleaning machines and cabinets to 3.
control the hazard and protect adjacent workers from exposure.
Practice good personal hygiene to avoid unnecessary exposure to silica dust.4.
Wear washable or disposable protective clothes at the worksite. Shower, and 5.
change into clean clothes before leaving the worksite to prevent
contamination of cars, homes, and other work areas.
Use respiratory protection when source controls cannot keep silica exposures 6.
below the recommended levels.
Provide periodic medical examinations for all workers who may be exposed to 7.
crystalline silica.
Post signs to warn workers about the hazard and to inform them about 8.
required protective equipment.
Provide workers with training that includes information about health effects, 9.
work practices, and protective equipment for crystalline silica.
SKU 94274 For technical questions, please call 1-800-444-3353 PAGE 6
Report all cases of silicosis to State health departments and to OSHA or the 10.
Mine Safety and Health Administration (MSHA).
Before each use, check the seal on all doors of the Blast Cabinet.24. Only
operate the Blast Cabinet with all doors securely closed.
25. WARNING! This product, when used for abrasive blasting and similar
applications, produces chemicals known to the State of California to cause cancer
and birth defects (or other reproductive harm). (California Health & Safety Code
25249.5, et seq.)
WARNING! 26. The warnings, cautions, and instructions discussed in this
instruction manual cannot cover all possible conditions and situations that may
occur. It must be understood by the operator that common sense and caution
are factors which cannot be built into this product, but must be supplied by the
operator.
WARNING! 27. People with pacemakers should consult their physician(s)
before using this product. Electromagnetic elds in close proximity to to a heart
pacemaker could cause interference to or failure of the pacemaker.
WARNING! 28. The brass components of this product contain lead, a chemical
known to the state of California to cause birth defects (or other reproductive
harm). (California Health & Safety code 25249.5, et seq.)
For best service, you should incorporate a regulator, and in-line lter, as shown in 29.
the diagram on the next page. Hoses, couplers, regulators, and lters are all
available at Harbor Freight Tools. (See Figure A, next page.)
SKU 94274 For technical questions, please call 1-800-444-3353 PAGE 7
REGULATOR
AIR
COMPRESSOR
TO
BLAST
CABINET
IN-LINE FILTER
FIGURE A
SAVE THESE INSTRUCTIONS
GROUNDING
WARNING!
Improperly connecting the grounding wire can result in the risk of electric shock.
Check with a qualied electrician if you are in doubt as to whether the outlet is
properly grounded. Do not modify the power cord plug provided with the tool.
Never remove the grounding prong from the plug. Do not use the tool if the power
cord or plug is damaged. If damaged, have it repaired by a service facility before
use. If the plug will not t the outlet, have a proper outlet installed by a qualied
electrician.
GROUNDED TOOLS: TOOLS WITH THREE PRONG PLUGS
Tools marked with “Grounding Required” have a three wire cord and three prong 1.
grounding plug. The plug must be connected to a properly grounded outlet. If
the tool should electrically malfunction or break down, grounding provides a low
resistance path to carry electricity away from the user, reducing the risk of electric
shock. (See Figure B, next page.)
The grounding prong in the plug is connected through the green wire inside the 2.
cord to the grounding system in the tool. The green wire in the cord must be the
only wire connected to the tool’s grounding system and must never be attached
to an electrically “live” terminal. (See Figure B, next page.)
SKU 94274 For technical questions, please call 1-800-444-3353 PAGE 8
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