Harbor Freight Tools 37025 Owner's Manual

ABRASIVE HOPPER KIT

37025

SET UP AND OPERATING INSTRUCTIONS

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© 1997, 2009 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.

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

CONTENTS

TROUBLESHOOTING ......................13

SAFETY ALERT SYMBOL AND

SIGNAL WORDS .............................3

IMPORTANT SAFETY

INSTRUCTIONS .......................... 3

GENERAL ...........................................3

WORK AREA ......................................3

PERSONAL SAFETY ......................... 4

TOOL USE AND CARE ......................4

SERVICE ............................................ 5

AIR SOURCE ......................................5

SYMBOLS AND SPECIFIC

SAFETY INSTRUCTIONS ........... 5

SYMBOL DEFINITIONS ..................... 5

SPECIFIC SAFETY INSTRUCTIONS 6

FUNCTIONAL DESCRIPTION ....... 8

PARTS LIST & ASSEMBLY

DIAGRAM .................................. 14

DISCHARGE GUN PARTS LIST

& PARTS DIAGRAM ................. 15

LIMITED 90 DAY WARRANTY .... 16

SPECIFICATIONS ..............................8

COMPONENTS AND CONTROLS ....8

INITIAL TOOL SET UP/

ASSEMBLY .................................. 8

UNPACKING ....................................... 8

AIR SUPPLY .......................................8

OPERATING INSTRUCTIONS .... 10

TOOL SET UP ..................................10

ASSEMBLY.......................................10

WORK PIECE AND WORK AREA

SET UP ..........................................10

GENERAL OPERATING

INSTRUCTIONS ........................ 11

USER-MAINTENANCE

INSTRUCTIONS ........................ 12

CLEANING, MAINTENANCE, AND

LUBRICATION ............................... 12

Page 2 For technical questions, please call 1-800-444-3353. SKU 37025

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:

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

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.

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.

WARNING – When using tools, basic

precautions should always be
followed, including the following:

General

To reduce the risks of electric shock,

re, and injury to persons, read all the

instructions before using the tool.

Work area

Keep the work area clean and well a.
lighted. Cluttered benches and dark

areas increase the risks of electric

shock, re, and injury to persons.

Do not operate the tool in b.
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.

Keep bystanders, children, and c.
visitors away while operating the

Page 3For technical questions, please call 1-800-444-3353.SKU 37025

tool. Distractions are able to result in
the loss of control of the tool.

Personal safety

Stay alert. Watch what you are a.
doing and use common sense
when operating the tool. Do not
use the tool while tired or under

the inuence of drugs, alcohol, or

medication. A moment of inattention
while operating the tool increases the

risk of injury to persons.

Dress properly. Do not wear loose b.
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.

Avoid unintentional starting. c.
Be sure the switch is off before
connecting to the air supply. Do not

carry the tool with your nger on the

switch or connect the tool to the air
supply with the switch on.

Do not overreach. Keep proper d.
footing and balance at all times.

Proper footing and balance
enables better control of the tool in
unexpected situations.

e. 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.

f. Always wear eye

protection. Wear ANSI-

approved safety goggles.

g. Always wear hearing

protection when using
the tool. Prolonged

exposure to high intensity

noise is able to cause hearing loss.

Tool use and care

Use clamps or another practical a.
way to secure and support the

workpiece to a stable platform.
Holding the work by hand or against
the body is unstable and is able to
lead to loss of control.

Do not force the tool.b. 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.

Do not use the tool if the switch c.
does not turn the tool on or off.

Any tool that cannot be controlled
with the switch is dangerous and
must be repaired.

Disconnect the tool from the d.
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, and release the
trigger before leaving the work area.

Store the tool when it is idle out e.

of reach of children and other

untrained persons. A tool is
dangerous in the hands of untrained
users.

Maintain the tool with care. f.
Keep the tool clean and free of
obstructions. A properly maintained

Page 4 For technical questions, please call 1-800-444-3353. SKU 37025

tool reduces the risk of accidents and
is easier to control.

rated air pressure or within the rated
air-pressure range.

Check for misalignment or binding g.
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.

Use only accessories that are h.

identied by the manufacturer for
the specic tool model. Use of an

accessory not intended for use with

the specic tool model, increases the
risk of injury to persons.

Service

Tool service must be performed a.

only by qualied repair personnel.

Service or maintenance performed by

unqualied personnel could result in
a risk of injury.

Never use oxygen, carbon dioxide, b.
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.

SYMBOLS AND

SPECIFIC SAFETY

INSTRUCTIONS

Symbol Denitions

Symbol Property or statement

n

o

.../min

PSI

No-load speed

Revolutions or reciprocation per
minute

Pounds per square inch of pressure

When servicing a tool, use only b.
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

ft-lb

BPM

CFM

SCFM

NPT

NPS

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.

Chart continued in next column.

Page 5For technical questions, please call 1-800-444-3353.SKU 37025

Symbol Denitions

Symbol Property or statement

WARNING marking concerning Risk

of Respiratory Injury. Wear NIOSH-

approved dust mask/respirator.

WARNING marking concerning Risk
of Explosion.

Specic Safety Instructions

The warnings and precautions 1.
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.

WARNING: The brass components 2.
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.)

WARNING: This product, when used 3.
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.)

Only use with accessories rated to 4.
handle the forces exerted by this tool
during operation. Other accessories
not designed for the forces generated
may break and forcefully launch
pieces.

Attach all accessories properly to the 5.
tool before connecting the air supply.
A loose accessory may detach or
break during operation.

Obey the manual for the air 6.
compressor used to power this tool.

Install an in-line shutoff valve to allow 7.
immediate control over the air supply
in an emergency, even if a hose is
ruptured.

Silicosis and Aluminum Oxide
Warnings

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 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:

Prohibit the use of silica sand (or 1.
other substances containing more
than 1% crystalline silica) as an
abrasive blasting material and

Page 6 For technical questions, please call 1-800-444-3353. SKU 37025

substitute with less hazardous
materials.

Conduct air monitoring to measure 2.
worker exposures.

Use containment methods such as 3.
blast-cleaning machines and cabinets
to control the hazard and protect

adjacent workers from exposure.

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

Wear washable or disposable 5.
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.

permanent physical injury, particularly to

the hands, arms and shoulders. To reduce

the risk of vibration-related injury:

Anyone using vibrating tools regularly 1.
or for an extended period should

rst be examined by a doctor and

then have regular medical check­ups to ensure medical problems are
not being caused or worsened from
use. Pregnant women or people
who have impaired blood circulation

to the hand, past hand injuries,

nervous system disorders, diabetes,
or Raynaud’s Disease should not use
this tool. If you feel any symptoms
related to vibration (such as tingling,

numbness, and white or blue ngers),

seek medical advice as soon as
possible.

Use respiratory protection when 6.
source controls cannot keep silica
exposures below the NIOSH REL.

Provide periodic medical 7.
examinations for all workers who may
be exposed to crystalline silica.

Post signs to warn workers about 8.
the hazard and to inform them about
required protective equipment.

Provide workers with training that 9.
includes information about health
effects, work practices and protective
equipment for crystalline silica.

Report all cases of silicosis to State 10.
health departments and to OSHA
or the Mine Safety and Health
Administration (MSHA).

Do not smoke during use. Nicotine 2.
reduces the blood supply to the

hands and ngers, increasing the risk
of vibration-related injury.

Wear suitable gloves to reduce the 3.
vibration effects on the user.

Use tools with the lowest vibration 4.
when there is a choice.

Include vibration-free periods each 5.
day of work.

Grip tool as lightly as possible (while 6.
still keeping safe control of it). Let
the tool do the work.

To reduce vibration, maintain tool as 7.
explained in this manual. If abnormal
vibration occurs, stop immediately.

Vibration Precautions

This tool vibrates during use.

Repeated or long-term exposure to
vibration may cause temporary or

SAVE THESE

INSTRUCTIONS.

Page 7For technical questions, please call 1-800-444-3353.SKU 37025

FUNCTIONAL DESCRIPTION

Specications

Compressor
Requirements

Air Inlet 1/4” NPT

Average Air
Consumption

Maximum Air Pressure 120 PSI

Hopper Capacity 50 lbs.

Abrasive Supply Hose 15 ft.

Accessories One 3mm Hex Key

1 HP or larger
compressor

2 CFM @ 50 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.

Abrasive

Supply

Connection

Trigger

Discharge

Gun (6A)

Air Inlet

(5A)

Components and Controls

Hopper (1A)

Abrasive

Supply

Hose (4A)

Bleeder

Valve

Lock Nut (3A)

Figure 1

(2A)

Unpacking

When unpacking, make sure that the
item is intact and undamaged. If any parts
are missing or broken, please call Harbor
Freight Tools at 1-800-444-3353 as soon
as possible.

This air tool may be shipped with a •
protective plug covering the air inlet.
Remove this plug before set up.

Air Supply

TO PREVENT

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.

Page 8 For technical questions, please call 1-800-444-3353. SKU 37025

Coupler

Plug

Tool

Quick

Coupler

Valve Filter

Dryer

Coupler

Plug

Air Hose

on Reel

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.

Air

Compressor

Quick

Coupler

Regulator with

Pressure Gauge

Recommended Air Line Components

Incorporate a lter, regulator with 1.
pressure gauge, dryer, in-line shutoff
valve, and quick coupler for best
service, as shown in the diagram
above. 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: An oiler system should not be used

with this tool. The oil will mix with
the material being propelled, causing
poor gun plugging.

The air hose must be long enough 3.
to reach the work area with enough
extra length to allow free movement
while working.

Release the Trigger to turn the tool 4.
off.

Close the in-line safety valve between 5.
the compressor and the tool.

Turn on the air compressor according 6.
to the manufacturer’s directions and
allow it to build up pressure until it
cycles off.

Adjust the air compressor’s output 7.
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 of 120

PSI at any time. Adjust the pressure

gradually, while checking the air
output gauge to set the right pressure
range.

Attach an air hose to the 2.
compressor’s air outlet. Connect
air hose to the air inlet of the tool.
Other components, such as a coupler
plug and quick coupler, will make

operation more efcient, but are not

required.

WARNING! TO PREVENT SERIOUS

INJURY FROM ACCIDENTAL
OPERATION:
Do not install a female quick

Inspect the air connections for leaks. 8.
Repair any leaks found.

If the tool will not be used at this time, 9.
turn off the compressor and detach
the air supply, safely discharge any
residual air pressure, and release
the throttle and/or turn the switch to
its off position to prevent accidental
operation.

Page 9For technical questions, please call 1-800-444-3353.SKU 37025

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 into the hopper
after disconnecting to ensure that the
tool is disconnected and unpowered.

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

Assembly

Insert the Bleeder Valve (2A) from 1.
inside the Hopper (1A) through the
hole at the bottom of the Hopper.

From the outside of the Hopper, 2.
thread the Lock Nut (3A) onto the
Bleeder Valve.

Push one end of the Abrasive Supply 3.
Hose (4A) onto the end of the
Bleeder Valve, making sure that the

Hose is not covering the air ow hole

on the Bleeder Valve.

Slide the other end of the Abrasive 4.
Supply Hose onto the Abrasive
Supply Hose Connection on the
Discharge Gun (6A).

Attach the Air Inlet (5A) to the bottom 5.
of the Discharge Gun handle.

Inspect all the ttings to ensure that 6.
they are secure.

TO PREVENT

SERIOUS INJURY
FROM ACCIDENTAL
OPERATION:
Turn off the tool, detach the
air supply, safely discharge
any residual air pressure in
the tool, and release the
trigger 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 specically explained

within this manual. Improper
adjustment can result in
tool failure or other serious
hazards.

Work Piece and Work Area Set Up

Designate a work area that is clean 1.
and well-lit. The work area must not
allow access by children or pets to

prevent distraction and injury.

Route the air hose along a safe 2.
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.

There must not be hazardous objects 3.
(such as utility lines or foreign

objects) nearby that will present a

hazard while working.

Page 10 For technical questions, please call 1-800-444-3353. SKU 37025

GENERAL OPERATING

INSTRUCTIONS

WARNING: Wear ANSI-approved safety

goggles, gloves, a NIOSH-approved
protective face mask, and Hard Hat
when using the Spot Blaster.

continously to prevent damage to the
item.

Note: Use caution when sandblasting

unfamiliar material. Test the tool on
a small area before proceeding. This
will ensure you will not damage or pit
the material you wish to sandblast.

Set the compressor’s pressure 1.
regulator to 50-120 PSI. Do not set
the compressor’s outlet regulator
over 120 PSI.

Connect air supply to the air inlet 2.
of the gun. If leaking is detected,
disconnect the air hose and repair
before use.

Fill the Hopper (1A) with an 3.
appropriate abrasive such as steel
grit or glass bead abrasive, checking
to ensure that the abrasives are dry
and clean.

Place the material to be sandblasted 4.
in an area suitable for this kind of
work.

CAUTION: The blasting medium will

accumulate and cover items near
the blasting area, possibly damaging

nishes or contaminating moving

parts. Place the compressor in
another room to prevent it from being
damaged.

Holding the Discharge Gun so that it 5.
is pointing away from you, turn on the
air compressor.

WARNING: Do not point the gun towards

your face, any part of yourself, or at
any other person or animal.

If the tool requires more force to 7.
accomplish the task, verify that the

tool receives sufcient, unobstructed
airow (CFM) and increase the

pressure (PSI) output of the regulator
up to the maximum air pressure
rating of this tool.

CAUTION! TO PREVENT TOOL
AND ACCESSORY FAILURE,
RESULTING IN INJURY:
Do not exceed the tool’s maximum
air pressure rating.

If the tool still does not have sufcient

force at maximum pressure and

airow, then a larger tool may be

required.

To prevent accidents, release the 8.
Trigger, detach the air supply, safely
discharge any residual air pressure
in the airline, and release the trigger
after use. Clean external surfaces of
the tool with a clean, dry cloth. Then
store the tool indoors out of children’s
reach.

Squeeze the trigger on the Discharge 6.
Gun (6A) to begin operation. Release
it to stop.

Use even passes of the Discharge
Gun to remove rust, paint, etc. Do not
keep the Gun point in one location

Page 11For technical questions, please call 1-800-444-3353.SKU 37025

USER-MAINTENANCE

INSTRUCTIONS

Procedures not specically

explained in this manual
must be performed only by a

qualied technician.

Pour excess blasting medium out of 1.
the Hopper (1A) and into a container

such as a ve gallon bucket (sold

separately).

Disconnect the Abrasive Supply Hose 2.
(4A) from the Bleeder Valve (2A) and
the Discharge Gun (6A).

TO PREVENT

SERIOUS INJURY
FROM ACCIDENTAL
OPERATION:
Turn off the tool, detach the
air supply, safely discharge
any residual air pressure in
the tool, and release the
trigger 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.

Cleaning, Maintenance, and

Lubrication

Note: These procedures are in addition to

the regular checks and maintenance
explained as part of the regular
operation of the air-operated tool.

Changing the Blasting Medium

It is not necessary to remove the
blasting medium from the Hopper
(1A) after every use. However, clean
out the Hopper when a different
blasting medium is to be used. To
clean the Hopper:

To clear medium from the hose, use 3.
your compressor to blow air through
the Abrasive Supply Hose into the
container holding the excess blasting
medium.

CAUTION: Wear protective clothing, a

NIOSH-approved face mask, and
ANSI-approved goggles when
performing this operation.

When the Hopper is clean, 4.
reassemble the Abrasive Supply

Hose and Gun and ll the Hopper

with new blasting medium.

Seals

Sandblasting is a damaging
operation. In time, the internal parts
of the Discharge Gun (6A) will
become worn. When performance of
the Discharge Gun decreases, take

it to a qualied service technician for

repair. There are no serviceable parts
for this tool.

Daily - Air Supply Maintenance:

Every day, perform maintenance 1.
on the air supply according to
the component manufacturers’

instructions. The moisture lter must

be regularly drained. Performing
routine maintenance on the air supply
will allow the tool to operate more
safely and will also reduce wear on
the tool.

Page 12 For technical questions, please call 1-800-444-3353. SKU 37025

Prior to storage, with a soft brush 2.
remove any contamination build-up
beneath the Trigger and Valve Stem
(14).

exploded diagram, dismantle the
gun, clean interoir using compressed
air, add a few drops of air tool oil to
all moving parts and re-assemble.
Replace any damaged components.

As supplied air is dry, internal 3.
moving components of the gun
require regular lubrication. Using the

Troubleshooting

Problem Possible Causes Likely Solutions

Decreased output. Not enough air pressure and/1.

Housing heats
during use.
Severe air
leakage.
(Slight air leakage
is normal,
especially on older
tools.)

or air ow.

Obstructed trigger. 2.

Blocked air inlet screen (if 3.
equipped).

Air leaking from housing. 4.

Mechanism contaminated. 5.

Worn parts.1. Have qualied technician inspect internal 1.

Cross-threaded housing 1.
components.

Loose housing. 2.

Damaged valve or housing.3.

Dirty, worn or damaged valve 4.
stem.

Check for loose connections and make sure 1.

that air supply is providing enough air ow

(CFM) at required pressure (PSI) to the
tool’s air inlet. Do not exceed maximum air

pressure.

Clean around trigger to ensure free 2.
movement.

Clean air inlet screen of buildup. 3.

Make sure housing components are properly 4.
assembled and tight.

Clean and lubricate mechanism. Install in-5.

line lter in air supply as stated in Initial Set

Up: Air Supply.

mechanism and replace parts as needed.
Check for incorrect alignment and uneven 1.
gaps. If cross-threaded, disassemble and
replace damaged parts before use.

Tighten housing assembly. If housing cannot 2.
tighten properly, internal parts may be
misaligned.

Replace damaged components.3.

Clean or replace valve stem, O-ring, washer, 4.
and gasket.

Follow all safety precautions whenever diagnosing or servicing the

tool. Disconnect air supply before service.

Page 13For technical questions, please call 1-800-444-3353.SKU 37025

PARTS LIST & ASSEMBLY DIAGRAM

Part Description Qty

1A Hopper 1
2A Bleeder Valve 1
3A Lock Nut 1

1A

Part Description Qty

4A Abrasive Supply Hose 1
5A Air Inlet 1
6A Discharge Gun 1

6A

5A

4A

2A

3A

Page 14 For technical questions, please call 1-800-444-3353. SKU 37025

DISCHARGE GUN PARTS LIST & PARTS DIAGRAM

Part Description Qty

1 Ceramic Nozzle 1
2 Nozzle Housing 1
3 Bleeder Valve M6 x 1.00 2
4 O-Ring 1
5 Jet Nozzle 1
6 Gasket 1
7 Trigger 1
8 Pin 1
9 Gun Body 1

Part Description Qty

10 Gasket 1
11 O-Ring 1
12 Washer 1
13 Spring 1
14 Valve Stem 1
15 Spring 1
16 O-Ring 1
17 Nut 1
18 Air Inlet Adapter 1

Page 15For technical questions, please call 1-800-444-3353.SKU 37025

PLEASE READ THE FOLLOWING CAREFULLY

THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS LIST AND ASSEMBLY
DIAGRAM IN THIS MANUAL AS A REFERENCE TOOL ONLY. 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.

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 veries 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 specic legal rights and you may also have other rights

which vary from state to state.

3491 Mission Oaks Blvd. • PO Box 6009 • Camarillo, CA 93011 • [phone]

Record Product’s Serial Number Here:

Note: If product has no serial number, record month and year of purchase instead.

Note: Some parts are listed and shown for illustration purposes only, and are not

available individually as replacement parts.

Page 16 For technical questions, please call 1-800-444-3353. SKU 37025