Harbor Freight Tools 93889 User Manual

PRESSURE BLASTING

®

SYSTEM

Model 93889

ASSEMBLY AND OPERATING INSTRUCTIONS

Due to continuing improvements, actual product may differ slightly from the product described herein.

3491 Mission Oaks Blvd., Camarillo, CA 93011

Visit our Web site at: http://www.harborfreight.com

TO PREVENT SERIOUS INJURY,

READ AND UNDERSTAND ALL WARNINGS

AND INSTRUCTIONS BEFORE USE.

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

For technical questions, please call 1-800-444-3353.

without the express written consent of Harbor Freight Tools.

PRODUCT SPECIFICATIONS

Item Description

Media Tank Capacity 90 Pounds
Maximum Tank Pressure 125 PSI
Pressure Gauge Indicator 0 ~ 150 PSI
Required Compressed Air
System (Not Included)
Recommended Media Type Glass Bead / Silicon Carbide

Recommended Use Use with 80, 100, or 120 Grit Media, at 60 PSI, with 3/32”

Water Trap Type Push Button to Drain
Accessories 3/32” Nozzle (Qty. 1) / 1/8” Nozzle (Qty. 1)

Net Weight 29.70 Pounds

2 HP Compressor With 3/8” Diameter Air Hose

Alumina / Walnut Shell / Brass Bead

Nozzle for best results (Run Time: 45 minutes with 90 Lbs. Media)

8 Ft. x 1/2” I.D. Hose (Qty. 1) / Blast Hood (Qty. 1)
Sandblaster Gun (Qty. 1) / Pipe Thread Seal Tape (Qty. 1)

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.

UNPACKING

When unpacking, check to make sure that all the parts and accessories listed on page 15
are included, and the product is intact and undamaged. If any parts are missing or broken,
please call Harbor Freight Tools at the number shown on the cover of this manual as soon
as possible.

SAFETY WARNINGS AND PRECAUTIONS

1. Do not operate the Pressure Blasting System if the Control Lever does not
turn the tool on or off. Any tool that cannot be controlled with its Control Lever

is dangerous and must be replaced.

2. Keep work area clean. Cluttered areas invite accidents.

3. WARNING! Do not operate pneumatic equipment in explosive

atmospheres, such as in the presence of flammable liquids, gases, or dust.
Pneumatic equipment can create sparks which may ignite flammables.

SKU 93889 For technical questions, please call 1-800-444-3353 PAGE 2

4. WARNING! Always wear ANSI-approved safety impact eye glasses under a
full face shield, a respirator, and heavy duty work gloves when operating the
Pressure Blasting System. Also, wear heavy duty work boots, long trousers, and
long sleeve shirt.

5. Stay within air pressure capacity. Never operate the Pressure Blasting System
above 125 PSI.

6. Keep children away. Children must never be allowed in the work area. Do not
let them handle equipment, tools, extension cords, or air hoses.

7. Store idle equipment. When not in use, the Pressure Blasting System must be
stored in a dry location to inhibit rust. Always lock up the machine and keep out
of reach of children.

8. Use the right tool for the job. 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.

9. Dress properly. 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.

10. Do not overreach. Keep proper footing and balance at all times. Do not reach
over or across running tools or air hoses.

11. Disconnect air hose and release any built-up air pressure. Never service the
Pressure Blasting System or disassemble with the air hose attached. Always
release any built-up air even after disconnecting hose. Disconnect the Pressure
Blasting System when not in use.

12. Remove adjusting wrenches. Check that adjusting wrenches are removed
from the tool and work surface before attaching to an air source.

13. Stay alert. Watch what you are doing. Use common sense. Do not operate any
tool or equipment when you are tired.

14. Check for damaged parts. 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 qualified
technician.

SKU 93889 For technical questions, please call 1-800-444-3353 PAGE 3

15. Replacement parts and accessories. This product is to be repaired and
serviced only by a qualified 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.

16. Do not operate this product if under the influence of alcohol or drugs. Read
warning labels if taking prescription medicine to determine if your judgement or
reflexes are impaired while taking drugs. If there is any doubt, do not operate
the tool.

17. Maintenance. 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 qualified technician.

18. Compressed air only. Use clean, dry, regulated, compressed air at 65 to 125
PSI. Never use oxygen, carbon dioxide, combustible gases, or any other bottled
gas as a power source for this product.

19. Transport the Pressure Blasting System safely. Always disconnect air supply
when moving the tool. Pull the tool by the handle to avoid tipping.

20. Avoid working alone. If an accident happens, an assistant can bring help.

21. Maintain labels and nameplates on the Pressure Blasting System. These
carry important information. If unreadable or missing, contact Harbor Freight
Tools for a replacement.

22. Maintain a firm grip on the Gun when in use.

23. Never point the Gun toward yourself, other people, or animals. Keep all
people and animals safely away from the work area.

24. Maintain a safe distance away from the object being sandblasted. Whenever
possible, sandblast the object at a 45 degree angle to minimize the possibility of
grit, dirt, and debris ricocheting directly backward toward your face and body.

25. Industrial applications must follow OSHA requirements.

26. Whenever possible, perform a sandblasting test on a small area of the
object to be sandblasted. If necessary, adjust the distance to the object and/or
change the Nozzle of the Gun for more effective results.

27. Make sure to read and understand all safety warnings and precautions as

SKU 93889 For technical questions, please call 1-800-444-3353 PAGE 4

outlined in the manufacturer’s manual for the object you intend to
sandblast.

28. Avoid unintentional starting. Make sure the Control Lever on the Gun is in its
“OFF” or “CLOSED” position when the tool is not being used.

29. WARNING! Some dust created by power sanding, sawing, grinding,
drilling, and other construction activities contain chemicals known (to the State of
California) to cause cancer, birth defects, or other reproductive harm.
Some examples of these chemicals are:
* Lead from lead-based paints,
* Crystalline silica from bricks, cement, and other masonry products,
* Arsenic and chromium from chemically treated lumber.

(California Health & Safety Code 25249.5, et seq.)

30. WARNING! 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 a NIOSH-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 silicosisand 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:

1. Prohibit silica sand (or other substances containing more than 1% crystalline

silica) as an abrasive blasting material and substitute less hazardous
materials.

2. Conduct air monitoring to measure worker exposures.

3. Use containment methods such as blast-cleaning machines and cabinets to

control the hazard and protect adjacent workers from exposure.

4. Practice good personal hygiene to avoid unnecessary exposure to silica dust.

5. Wear washable or disposable protective clothes at the worksite. Shower, and

change into clean clothes before leaving the worksite to prevent contamination
of cars, homes, and other work areas.

SKU 93889 For technical questions, please call 1-800-444-3353 PAGE 5