Page 1
1 Liter Abrasive Blast Gun
Item 92857
Read this material before using this product.
Failure to do so can result in serious injury.
SAVE THIS MANUAL.
When unpacking, make sure that the product is intact and undamaged.
If any parts are missing or broken, please call 1-800-444-3353 as soon as possible.
Visit our website at: http://www.harborfreight.com
Copyright© 2005 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. Diagrams within this manual may not be drawn proportionally. Due to continuing
improvements, actual product may differ slightly from the product described herein. Tools required for assembly and service may not be included.
Manual Revised 11g
Page 2
Save This Manual
Keep this manual for the safety warnings and
precautions, assembly, operating, inspection,
maintenance and cleaning procedures. Write the
product’s serial number in the back of the manual near
the assembly diagram (or month and year of purchase
if product has no number). Keep this manual and the
receipt in a safe and dry place for future reference.
Safety Alert Symbol
and Signal Words
In this manual, on the labeling, and all other
information provided with this product:
This is the safety alert symbol. It is
used to alert you to potential personal
injury hazards. Obey all safety
messages that follow this symbol
to avoid possible injury or death.
DANGER indicates a hazardous situation which, if
not avoided, will result in death or serious injury.
Work Area
a. Keep the work area clean and well lighted.
Cluttered benches and dark areas increase the
risks of electric shock, re, and injury to persons.
b. Do not operate the tool in explosive atmospheres,
such as in the presence of ammable liquids,
gases, or dust. The tool is able to create sparks
resulting in the ignition of the dust or fumes.
c. Keep bystanders, children, and visitors away
while operating the tool. Distractions are able
to result in the loss of control of the tool.
Personal Safety
a. Stay alert. Watch what you are doing and
use common sense when operating the tool.
Do not use the tool while tired or under the
inuence of drugs, alcohol, or medication.
A moment of inattention while operating the
tool increases the risk of injury to persons.
b. Dress properly. Do not wear loose clothing or
jewelry. Contain long hair. Keep hair, clothing, and
gloves away from moving parts. Loose clothes,
jewelry, or long hair increases the risk of injury to
persons as a result of being caught in moving parts.
WARNING indicates a hazardous situation which, if
not avoided, could result in death or serious injury.
CAUTION, used with the safety alert symbol,
indicates a hazardous situation which, if not
avoided, could result in minor or moderate injury.
NOTICE is used to address practices
not related to personal injury.
CAUTION, without the safety alert symbol, is used
to address practices not related to personal injury.
Important Safety Instructions
INSTRUCTIONS PERTAINING TO A
RISK OF FIRE, ELECTRIC SHOCK,
OR INJURY TO PERSONS
WARNING – When using tools, basic precautions
should always be followed, including the following:
c. Do not overreach. Keep proper
footing and balance at all times.
Proper footing and balance enables better
control of the tool in unexpected situations.
d. Use safety equipment. A dust mask,
non-skid safety shoes and a hard hat
must be used for the applicable
conditions. Wear heavy-duty work
gloves during use.
e. Always wear eye protection.
Wear ANSI-approved safety goggles.
f. Always wear hearing protection when
using the tool. Prolonged exposure to
high intensity noise is able to cause
hearing loss.
Tool Use and Care
a. Do not force the tool. Use the correct tool for the
application. The correct tool will do the job better
and safer at the rate for which the tool is designed.
b. Disconnect the tool from the air source
before making any adjustments, changing
accessories, or storing the tool. Such preventive
safety measures reduce the risk of starting the
tool unintentionally. Turn off and detach the air
supply, safely discharge any residual air pressure,
Page 2 For technical questions, please call 1-800-444-3353. SKU 92857
Page 3
and release the throttle and/or turn the switch to
its off position before leaving the work area.
c. Store the tool when it is idle out of reach
of children and other untrained persons.
A tool is dangerous in the hands of untrained users.
Symbols and Specic Safety Instructions
Symbol Denitions
d. Check for misalignment or binding of moving
parts, breakage of parts, and any other condition
that affects the tool’s operation. If damaged,
have the tool serviced before using. Many accidents
are caused by poorly maintained tools.
There is a risk of bursting if the tool is damaged.
e. Use only accessories that are identied by the
manufacturer for the specic tool model. Use of
an accessory not intended for use with the specic
tool model, increases the risk of injury to persons.
Service
a. Tool service must be performed only
by qualied repair personnel.
b. When servicing a tool, use only identical
replacement parts. Use only authorized parts.
Air Source
a. Never connect to an air source that is
capable of exceeding 200 psi.
Over pressurizing the tool may cause
bursting, abnormal operation, breakage
of the tool or serious injury to persons.
Use only clean, dry, regulated compressed air at the
rated pressure or within the rated pressure range as
marked on the tool. Always verify prior to using the
tool that the air source has been adjusted to the rated
air pressure or within the rated air-pressure range.
Symbol Property or statement
n
o
.../min
PSI
ft-lb
BPM
CFM
SCFM
NPT
NPS
No-load speed
Revolutions or reciprocation per minute
Pounds per square inch of pressure
Foot-pounds of torque
Blows per minute
Cubic Feet per Minute ow
Cubic Feet per Minute ow
at standard conditions
National pipe thread, tapered
National pipe thread, straight
WARNING marking
concerning Risk of Eye Injury.
Wear ANSI-approved eye protection.
WARNING marking concerning Risk of
Hearing Loss. Wear hearing protection.
WARNING marking concerning
Risk of Respiratory Injury. Wear
NIOSH-approved dust mask/respirator.
b. WARNING! Do not exceed 145 PSI
working air pressure during use.
c. Never use oxygen, carbon dioxide, combustible
gases or any bottled gas as an air source
for the tool. Such gases are capable of
explosion and serious injury to persons.
SAVE THESE
INSTRUCTIONS.
WARNING marking concerning
Risk of Explosion.
Page 3For technical questions, please call 1-800-444-3353.SKU 92857
Page 4
Specic Safety Instructions
1. The warnings and precautions discussed in this
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.
2. Do not exceed maximum 145 PSI.
3. Avoid unintentional starting. Prepare to
begin work before turning on the tool.
to reduce crystalline silica exposures in the workplace
and prevent silicosis and silicosis related deaths.
NIOSH recommends the following measures to
reduce crystalline silica exposures in the workplace
and prevent silicosis and silicosis-related 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.
4. Do not leave the tool unattended when it is plugged
into a compressor. Release the Trigger, and unplug
it from its pneumatic air source before leaving.
5. Never point the Trigger at a human or an animal.
6. Use clamps (not included) or other
practical ways to secure and support
the workpiece to a stable platform.
7. This product is not a toy. Keep it
out of reach of children.
8. 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.)
9. WARNING: 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.)
10. Obey the manual for the air compressor
used to power this tool.
11. Install an in-line shutoff valve to allow
immediate control over the air supply in an
emergency, even if a hose is ruptured.
12. If any abnormal vibration occurs,
stop use immediately.
Silicosis and Aluminum
Oxide Warnings
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 work site. Shower and change into clean
clothes before leaving the work site to prevent
contamination of cars, homes and other work areas.
6. Use respiratory protection when source controls
cannot keep silica exposures below the NIOSH REL.
7. Provide periodic medical examinations for all
workers who may be exposed to crystalline silica.
8. Post signs to warn workers about the hazard and to
inform them about required protective equipment.
9. Provide workers with training that includes
information about health effects, work practices
and protective equipment for crystalline silica.
10. Report all cases of silicosis to State health
departments and to OSHA or the Mine Safety
and Health Administration (MSHA)
11. The warnings and precautions discussed in this
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.
SAVE THESE
Warning: Abrasive blasting with sand 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 (National
Institute for Occupational Safety and Health) approved
respirator and safety goggles. Avoid skin exposure.
Proper ventilation in the work area is required. Read
and understand the 10 recommended measures below
Page 4 For technical questions, please call 1-800-444-3353. SKU 92857
INSTRUCTIONS.
Page 5
Functional Description
Specications
3. Attach an air hose to the compressor’s air outlet.
Connect the air hose to the air inlet of the tool.
Other components, such as a coupler plug
and quick coupler, will make operation
more efcient, but are not required.
Max. Air Pressure 145 PSI
Air Inlet 1/4 IN. - 18 NPT
Container Capacity 1 Liter
Air Consumption 6 CFM @ 90 PSI
Initial Tool Set Up/Assembly
Read the ENTIRE IMPORTANT
SAFETY INFORMATION section at the
beginning of this manual including
all text under subheadings therein
before set up or use of this product.
Note: For additional information regarding the
parts listed in the following pages, refer to the
Assembly Diagram near the end of this manual.
Note: This air tool may be shipped with
a protective plug covering the air inlet.
Remove this plug before set up.
Air Supply Setup
WARNING! TO PREVENT SERIOUS INJURY
FROM ACCIDENTAL OPERATION:
Do not install a female quick coupler on the tool.
Such a coupler contains an air valve that will
allow the air tool to retain pressure and operate
accidentally after the air supply is disconnected.
Note: Air ow, and therefore tool performance, can
be hindered by undersized air supply components.
4. The air hose must be long enough to reach
the work area with enough extra length to
allow free movement while working.
5. Close the in-line shutoff valve between
the compressor and the tool.
6. Turn on the air compressor according to
the manufacturer’s directions and allow it
to build up pressure until it cycles off.
7. Adjust the air compressor’s output regulator so
that the air output is enough to properly power
the tool, but the output will not exceed the tool’s
maximum air pressure at any time. Adjust
the pressure gradually, while checking the air
output gauge to set the right pressure range.
TO PREVENT SERIOUS INJURY
FROM EXPLOSION:
Use only clean, dry, regulated, compressed
air to power this tool. Do not use oxygen,
carbon dioxide, combustible gases, or any other
bottled gas as a power source for this tool.
1. To attach a grit supply hose - 1/4 IN - 18 NPT
(not included) to the Abrasive Blast Gun, wrap
approximately 3” of pipe thread sealer tape (not
included) around the male threads at the end of
the grit supply hose. Then, rmly tighten the grit
supply hose onto the Air Inlet of the Blast Gun.
2. Incorporate a lter, regulator with pressure gauge,
oiler, in-line shutoff valve, and quick coupler for
best service, as shown on Figure A on page 6
and Figure B on page 7. An in-line shutoff
ball valve is an important safety device because
it controls the air supply even if the air hose
is ruptured. The shutoff valve should be a
ball valve because it can be closed quickly.
Note: If an automatic oiler system is not used,
add a few drops of Pneumatic Tool Oil to the
airline connection before operation. Add a few
more drops after each hour of continual use.
8. Inspect the air connections for leaks.
Repair any leaks found.
9. If the tool will not be used at this time, turn off and
detach the air supply and safely discharge any
residual air pressure to prevent accidental operation.
Note: Residual air pressure should not be present after
the tool is disconnected from the air supply. However, it
is a good safety measure to attempt to discharge the tool
in a safe fashion after disconnecting to ensure that the
tool is disconnected and unpowered.
Page 5For technical questions, please call 1-800-444-3353.SKU 92857
Page 6
F
C
E
A
D
E H
A
C
G
Figure A: Portable Air Supply Setup
B
Lubricated
Tools
A
B
Non-lubricated
Tools
Description Function
A Air Hose Connects air to tool
B Filter Prevents dirt and condensation from damaging tool or work piece
C Regulator Adjusts air pressure to tool
F Leader Hose (optional) Increases coupler life
E Coupler and Plug Provides quick connection and release
D Lubricator (optional) For air tool lubrication
H Air Adjusting Valve (optional) For ne tuning airow at tool
G Air Cleaner / Dryer (optional) Prevents water vapor from damaging work piece
Page 6 For technical questions, please call 1-800-444-3353. SKU 92857
Page 7
F
M
L
L O
H
Slope
J
Lubricated
Tools
G
Figure B: Stationary Air Supply Setup
H
K
C
E
D
J
N
I
I
C
Non-lubricated
Tools
F
F
Description Function
C
B B
A A
I Filter Prevents dirt and condensation from damaging tool or work piece
J Regulator Adjusts air pressure to tool
A Vibration Pads For noise and vibration reduction
B Anchor Bolts Secures air compressor in place
C Ball Valve Isolates sections of system for maintenance
F Ball Valve To drain moisture from system
E Main Air Line - 3/4” minimum recommended Distributes air to branch lines
D Isolation Hose For vibration reduction
H Air Hose Connects air to tool
G Branch Air Line -1/2” minimum recommended Brings air to point of use
L Coupler and Plug Provides quick connection and release
K Lubricator (optional) For air tool lubrication
N Air Cleaner / Dryer (optional) Prevents water vapor from damaging work piece
O Air Adjusting Valve (optional) For ne tuning airow at tool
M Leader Hose (optional) Increases coupler life
Page 7For technical questions, please call 1-800-444-3353.SKU 92857
Page 8
Operating Instructions
Read the ENTIRE IMPORTANT
SAFETY INFORMATION section at the
beginning of this manual including
all text under subheadings therein
before set up or use of this product.
Inspect tool before use, looking
for damaged, loose, and missing
parts. If any problems are found,
do not use tool until repaired.
Tool Set Up
TO PREVENT SERIOUS INJURY FROM
ACCIDENTAL OPERATION:
Detach the air supply and safely discharge any
residual air pressure in the tool before performing
any inspection, maintenance, or cleaning procedures.
TO PREVENT SERIOUS INJURY:
Do not adjust or tamper with any control or
component in a way not specically explained
within this manual. Improper adjustment can
result in tool failure or other serious hazards.
Work Piece and
Work Area Set Up
1. Designate a work area that is clean and well-lit.
The work area must not allow access by children
or pets to prevent distraction and injury.
General Operating Instructions
1. If possible, place the workpiece inside a sandblast
cabinet (not included). Otherwise, isolate the
workpiece to make sure no damage can occur to
nearby walls, tools, equipment, or other property.
2. Fill the Container (3) with 1 liter of clean, dry blasting
media. Walnut Shells (SKU 92155 and 92150)
or aluminum oxide (SKU 99945) are available at
Harbor Freight Tools. WARNING! Do not use sand
as blasting media as sand may clog blast gun and
damage the nozzle. Do not reuse blasting media.
3. Place the Gun Body (1) on top of the Container and
turn clockwise until fastened securely.
NOTE: To keep the beads from accidentally spilling
out, do not point the Gun Body downward.
4. Connect the compressor’s air hose to the Gun
Body. Turn the compressor’s regulator to between
90-145 PSI. WARNING! Do not exceed 145 PSI.
5. Turn on the compressor and grip the Blast Gun rmly
with both hands.
NOTE: Test the spray pattern and intensity of
the Blast Gun on a piece of scrap material.
6. Aim the Gun Body toward the object that
is to be sandblasted. Then squeeze the
trigger to turn on the Blast Gun.
7. Adjust the ow of abrasive media by
turning the knurled adjustment ring on the
nozzle. Turn clockwise to reduce ow and
counterclockwise to increase ow.
2. Route the air hose along a safe route to reach
the work area without creating a tripping hazard
or exposing the air hose to possible damage.
The air hose must be long enough to reach
the work area with enough extra length to
allow free movement while working.
3. There must not be hazardous objects (such
as utility lines or foreign objects) nearby that
will present a hazard while working.
CAUTION! Prior to sandblasting, protect other
people (and property) in the work area from
ying debris by providing barriers or shields.
Always wear appropriate clothing and safety
gear when operating the Abrasive Blast Gun.
8. Use the Hook (4) to hang the Blast Gun
during use, if desired. WARNING! Do not
leave Blast Gun hanging unattended.
9. To rell the Container, release pressure on the
trigger. Turn off the air compressor and squeeze
the Trigger once again to release any compressed
air. Then twist off Container and rell.
10. When nished using the Blast Gun, release pressure
on the trigger. Turn off the air compressor. Squeeze
the trigger once to release any compressed air.
Disconnect the Blast Gun from its air supply.
NOTE: Always dispose of used abrasive bead
media according to local solid waste guidelines.
11. Clean, then store the tool indoors
out of children’s reach.
Page 8 For technical questions, please call 1-800-444-3353. SKU 92857
Page 9
User-Maintenance Instructions
Procedures not specically explained
in this manual must be performed
only by a qualied technician.
using only pneumatic tool oil. Lubricate the internal
mechanism using only white lithium grease. Other
lubricants may damage the mechanism and may be
highly ammable, causing an explosion.
Cleaning, Maintenance,
and Lubrication
TO PREVENT SERIOUS INJURY FROM
ACCIDENTAL OPERATION:
Detach the air supply and safely discharge any
residual air pressure in the tool before performing
any inspection, maintenance, or cleaning procedures.
TO PREVENT SERIOUS INJURY
FROM TOOL FAILURE:
Do not use damaged equipment.
If abnormal noise, vibration, or leaking air occurs,
have the problem corrected before further use.
TO PREVENT SEROUS INJURY
FROM EXPLOSION:
Lubricate the tool only with
specied lubricants. Lubricate the air inlet
Troubleshooting
Note: These procedures are in addition to the
regular checks and maintenance explained as part
of the regular operation of the air-operated tool.
1. BEFORE EACH USE, inspect the general condition
of the tool. Check for loose screws, misalignment
or binding of moving parts, clogged Nozzle,
damaged supply hose, cracked or broken parts,
and any other condition that may affect its safe
operation. Do not use damaged equipment.
2. AFTER USE, clean external surfaces of tool with a
clean, most cloth. If necessary, use a mild detergent.
WARNING! Do not use solvents or immerse in
liquids, as damage to Blast Gun may occur.
3. Store in a dry, secure area out of reach of children.
Problem Possible Causes Likely Solutions
Tool will not start. 1. Compressor not on.
2. Air line not connected properly.
Blast ow surges /
Excessive abrasive
consumption.
Clogging and
plugging of
blast ow.
Lack of abrasive
ow.
Follow all safety precautions whenever diagnosing or
servicing the tool. Disconnect air supply before service.
Air pressure too low. Increase air pressure.
Excessive debris in abrasive. Purge and lter abrasive.
1. Container empty.
2. Moisture in abrasive
3. Not enough air pressure.
4. Air hose kinked.
5. Excessive debris in abrasive.
1. Turn compressor on.
2. Check that air line is connected.
1. Fill Container.
2. Use dry abrasive.
3. Increase air pressure.
4. Un-kink air hose.
5. Clean or lter abrasive.
Page 9For technical questions, please call 1-800-444-3353.SKU 92857
Page 10
Parts List and Assembly Diagram
Part Description Qty
1 Gun Body 1
2 Nozzle 1
3 Container 1
4 Hook 1
4
2
3
1
Page 10 For technical questions, please call 1-800-444-3353. SKU 92857
Page 11
Limited 90 Day Warranty
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability
standards, and warrants to the original purchaser that this product is free from defects in materials and workmanship
for the period of 90 days from the date of purchase. This warranty does not apply to damage due directly or
indirectly, to misuse, abuse, negligence or accidents, repairs or alterations outside our facilities, criminal activity,
improper installation, normal wear and tear, or to lack of maintenance. We shall in no event be liable for death,
injuries to persons or property, or for incidental, contingent, special or consequential damages arising from the use
of our product. Some states do not allow the exclusion or limitation of incidental or consequential damages, so the
above limitation of exclusion may not apply to you. THIS WARRANTY IS EXPRESSLY IN LIEU OF ALL OTHER
WARRANTIES, EXPRESS OR IMPLIED, INCLUDING THE WARRANTIES OF MERCHANTABILITY AND FITNESS.
To take advantage of this warranty, the product or part must be returned to us with transportation
charges prepaid. Proof of purchase date and an explanation of the complaint must accompany the merchandise.
If our inspection veries the defect, we will either repair or replace the product at our election or we may
elect to refund the purchase price if we cannot readily and quickly provide you with a replacement. We will
return repaired products at our expense, but if we determine there is no defect, or that the defect resulted
from causes not within the scope of our warranty, then you must bear the cost of returning the product.
This warranty gives you specic legal rights and you may also have other rights which vary from state to state.
PLEASE READ THE FOLLOWING CAREFULLY
NEITHER THE MANUFACTURER OR DISTRIBUTOR MAKES ANY REPRESENTATION OR WARRANTY
OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALIFIED TO MAKE ANY REPAIRS TO THE
PRODUCT, OR THAT HE OR SHE IS QUALIFIED TO REPLACE ANY PARTS OF THE PRODUCT. IN
FACT, THE MANUFACTURER AND/OR DISTRIBUTOR EXPRESSLY STATES THAT ALL REPAIRS AND
PARTS REPLACEMENTS SHOULD BE UNDERTAKEN BY CERTIFIED AND LICENSED TECHNICIANS,
AND NOT BY THE BUYER. THE BUYER ASSUMES ALL RISK AND LIABILITY ARISING OUT OF
HIS OR HER REPAIRS TO THE ORIGINAL PRODUCT OR REPLACEMENT PARTS THERETO, OR
ARISING OUT OF HIS OR HER INSTALLATION OF REPLACEMENT PARTS THERETO.
Record Product’s Serial Number Here:
Note: If product has no serial number, record month and year of purchase instead.
Replacement parts are not available for this item.
Page 11For technical questions, please call 1-800-444-3353.SKU 92857
Page 12
3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • (800) 444-3353
Loading...