texture paint spray gun
66103
set up and Operating instructiOns
®
distributed exclusively by Harbor Freight tools .
3491 Mission Oaks Blvd., Camarillo, CA 93011
read this material before using this product.
Failure to do so can result in serious injury.
saVe tHis manual.
©
®
Copyright 2008 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.
sure to high intensity noise is able to
cause hearing loss.
personal safety
a. Stay alert. Watch what you are do-
ing and use common sense when
operating. Do not use while tired
or under the influence of drugs, al-
cohol, or medication. A moment of
inattention while operating increases
the risk of injury.
h. risk of electric shock. this tex-
ture spray paint gun is not pro-
vided with an insulated gripping
surface. Contact with a ″live″ wire will
also make exposed metal parts of the
tool ″live″ and shock the operator.
i.
avoid body contact with grounded
surfaces such as pipes, radiators,
ranges and refrigerators. There is
an increased risk of electric shock if
your body is grounded.
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 personal injury
as a result of being caught in moving
parts.
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.
c. avoid unintentional starting. Be
sure the switch is off before con-
necting to the air supply. Do not
carry the tool with your finger on the
Spray Gun Trigger, or connect the
tool to the air supply with the Trigger
depressed.
b. do not use the tool if the switch
does not turn the tool on or off.
Any tool that cannot be controlled
with the switch is dangerous and
must be repaired.
d. do not overreach. keep proper
footing and balance at all times.
Proper footing and balance enables
better control in unexpected situa-
tions.
c. disconnect the tool from the air
source before making any adjust-
ments, 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 Gun Trigger before
leaving the work area.
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 protec-
tion. Wear ANSI-ap-
proved safety goggles.
d. Store the idle Texture Paint Spray
Gun out of reach of children and
other untrained persons. A tool is
dangerous in the hands of untrained
users.
g.
always wear hearing
protection when using
the tool. Prolonged expo-
SKU 66103
For technical questions, please call 1-800-444-3353.
Page 3
e. maintain the tool with care. Keep
this tool clean. A properly maintained
tool is easier to control.
b. 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.
f.
check for misalignment or bind-
ing of moving parts, breakage of
parts, and any other condition that
affects the tool’s operation. If dam-
aged, 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.
saVe tHese
instructiOns.
symBOls and
speciFic saFety
instructiOns
g. use only accessories that are
identified by the manufacturer for
the specific tool model. Use of an
accessory not intended for use with
the specific tool model, increases the
risk of injury.
Symbol Definitions
symbol
property or statement
No-load speed
n
o
service
Revolutions or reciprocation per
minute
.../min
psi
a. Service on this Texture Paint Spray
Gun must be performed only by
qualified repair personnel.
Pounds per square inch of pressure
Foot-pounds of torque
ft-lb
b. When servicing, use only identical,
authorized replacement parts.
Blows per minute
Bpm
cFm
scFm
npt
air source
Cubic Feet per Minute flow
a.
never connect to an air
source that is capable of
exceeding 200 psi. Over
Cubic Feet per Minute flow at
standard conditions
National pipe thread, tapered
National pipe thread, straight
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.
nps
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.
chart continued in next column.
SKU 66103
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Page 4
Your risk from these exposures var-
ies, depending on how often you do
this type of work. To reduce your
exposure to these chemicals: work in
a well ventilated area, and work with
approved safety equipment, such as
those dust masks that are specially
designed to filter out microscopic
particles. (California Health & Safety
Code § 25249.5, et seq.)
WARNING: The brass components
of this product contain lead, a chemi-
cal known to the State of California
to cause birth defects (or other repro-
ductive harm). (California Health &
Safety code § 25249.5, et seq.)
Symbol Definitions
symbol
property or statement
WARNING marking concerning Risk
of Explosion.
Specific Safety Instructions
1. CAUTION: To prevent serious injury:
a. Do not exceed maximum air pres-
sure of 90 PSI.
b. Do not direct spray at any person, or
animal at any time.
c. Always wear ANSI-approved safety
goggles and breathing respirator
while using.
4. Only use with accessories rated to
handle the forces exerted by this tool
during operation. Other accessories
not designed for the forces gener-
ated may break and forcefully launch
pieces.
d. Use coveralls (disposable, or wash-
able) to cover entire body while us-
ing this product.
e. Read entire manual before using this
Texture Paint Spray Gun.
5. Attach all accessories properly to the
tool before connecting the air sup-
ply. A loose accessory may detach or
break during operation.
2. The warnings and precautions dis-
cussed in this manual cannot cover
all possible conditions and situations
that may occur. It must be under-
stood by the operator that common
sense and caution are factors which
cannot be built into this product, but
must be supplied by the operator.
6. Install an in-line shutoff valve to allow
immediate control over the air supply
in an emergency, even if a hose is
ruptured.
3. WARNING: Some dust created by
power sanding, sawing, grinding, drill-
ing, and other construction activities,
contains chemicals known [to the
State of California] to cause cancer,
birth defects or other reproductive
harm. Some examples of these
chemicals are:
Vibration precautions
This tool vibrates during use. Re-
peated or long-term exposure to vibra-
tion may cause temporary or permanent
physical injury, particularly to the hands,
arms and shoulders. To reduce the risk of
vibration-related injury:
• Lead from lead-based paints
• Crystalline silica from bricks and
cement or other masonry products
• Arsenic and chromium from chemi-
cally treated lumber
1. Anyone using vibrating tools regu-
larly or for an extended period should
first be examined by a doctor and
then have regular medical check-
SKU 66103
For technical questions, please call 1-800-444-3353.
Page 5
ups 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, ner-
vous system disorders, diabetes, or
Raynaud’s Disease should not use
this tool. If you feel any medical or
physical symptoms related to vibra-
tion (such as tingling, numbness, and
white or blue fingers), seek medical
advice as soon as possible.
2. Do not smoke during use. Nico-
tine reduces the blood supply to the
hands and fingers, increasing the risk
of vibration-related injury.
3. Wear suitable gloves to reduce the
vibration effects on the user.
4. Use tools with the lowest vibration
when there is a choice between dif-
ferent processes.
5. Include vibration-free periods each
day of work.
6. Grip tool as lightly as possible (while
still keeping safe control of it). Let
the tool do the work.
7. To reduce vibration, maintain tool as
explained in this manual. If abnormal
vibration occurs, stop immediately.
saVe tHese
instructiOns.
SKU 66103
For technical questions, please call 1-800-444-3353.
Page 6
air supply
FunctiOnal descriptiOn
tO preVent
Specifications
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.
Operating Air Pressure
25 - 90 PSI
Range
Maximum Air Pressure 90 PSI
Air Inlet
1/4” -18 NPS
Air Consumption
7 CFM @ 25 PSI
4 mm (5/32”)
6 mm (15/64”)
8 mm (5/16”)
Nozzle Size
note: The use of an in-line air and water
separator installed between the filter
and the regulator is recommended.
Hopper Capacity
1.5 gal
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.
unpacking
When unpacking, check to make sure
that the item is intact and undamaged. If
any parts are missing or broken, please
call Harbor Freight Tools at the number
shown throughout the manual as soon as
possible.
1. Attach an air hose to the compres-
sor’s air outlet. Connect the air hose
to the air inlet of the tool. Other com-
ponents, such as a connector and
quick coupler, will make operation
more efficient, but are not required.
• This air tool may be shipped with a
protective plug covering the air inlet.
Remove this plug before set up.
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
SKU 66103
For technical questions, please call 1-800-444-3353.
Page 7
operate accidentally after the air
supply is disconnected.
discharge the tool in a safe fashion
after disconnecting to ensure that the
tool is disconnected and not pow-
ered.
note: Air flow, and therefore tool perfor-
mance, can be hindered by under-
sized air supply components.
Operating instructiOns
2. The air hose must be long enough
to reach the work area with enough
extra length to allow free movement
while working.
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.
3. Make sure the tool’s throttle or switch
is in the off position; refer to Opera-
tion section for description of con-
trols.
inspect this texture spray paint
gun before use, looking for
damaged, loose, and missing
parts. if any problems are
found, do not use tool until
repaired.
4. Close the in-line safety valve be-
tween the compressor and the tool.
5. Turn on the air compressor according
to the manufacturer’s directions and
allow it to build up pressure until it
cycles off.
tool set up
tO preVent
seriOus injury
FrOm accidental
6. 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.
OperatiOn:
turn off the tool, detach the
air supply, safely discharge
any residual air pressure in
the tool, and release the
throttle and/or turn the switch
to its off position before
performing any inspection,
maintenance, or cleaning
procedures.
7. Inspect the air connections for leaks.
Repair any leaks found.
8. If the tool will not be used at this
time, turn off and detach the air sup-
ply, safely discharge any residual air
pressure, and release the throttle
and/or turn the switch to its off posi-
tion to prevent accidental operation.
tO preVent seriOus
injury:
do not adjust or tamper with
any control or component in a
way not specifically explained
within this manual. improper
adjustment can result in
tool failure or other serious
hazards.
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
SKU 66103
For technical questions, please call 1-800-444-3353.
Page 8
4. Using two hands, one to steady the
Plastic Hopper and the other to oper-
ate the Texture Paint Spray Gun, aim
the Spray Gun Nozzle at the surface
to be covered. nOte: it may take a
few times to mix the proper spray
solution. Do not fill the Plastic
Hopper until you have achieved
the viscosity you need for each
job.
Work piece and Work area set up
1. This Texture Paint Spray Gun is
meant for spraying heavy viscos-
ity products like rubberized decking
materials, texture coatings for interior
and exterior walls, heavy water proof-
ing materials, and the like. It is not
recommended for regular wall paint
or thin coatings of any type. While
these products can be used with this
Spray Gun, the results would not be
satisfactory, or even in coverage.
5. Squeeze the Gun Trigger (14) and
move the Texture Paint Spray Gun
in a back and forth motion, releasing
the Gun Trigger at the end of each
sweep.
2. Designate a work area that is clean
and well-lit. The work area must not
allow access by children or pets to
prevent injury and distraction.
6. If the product you are attempting to
spray either sputters, or stops spray-
ing, small adjustments in product
control may be made using the Fluid
Control Knob (8F), thinning the prod-
uct batch you are working with, or us-
ing a larger nozzle. nOte: nozzles
can be interchanged by un-thread-
ing the nozzle attached to the
3. Route the air hose along a safe route
to reach the work area without creat-
ing 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.
spray gun Body and threading on
a different sized nozzle.
4. There must not be utility lines or
foreign objects nearby while working
that may present a hazard.
7. cautiOn: Do not stop for extended
periods when spraying. Most of the
products you are using are fast-dry
materials and will start to set-up and
dry as soon as they come in contact
with the air. If you need to discon-
tinue spraying for more than half an
hour, turn off the air supply, discon-
nect the Plastic Hopper from the Gun
Body and thoroughly rinse the Plastic
Hopper and Gun Body with fresh,
clear, water. The products you are
using can set-up quickly and if not
cleared from your equipment may
render that equipment unusable.
general Operating instructions
1. Attach the Plastic Hopper (20) to the
top of the Gun Body (03) and tighten
the Hopper Clip (21) until the Plastic
Hopper is held securely in place.
2. Have an assistant pour the Texture
Paint mix into the top of the Plastic
Hopper filling no more than 3/4 full.
3. Turn on the air compressor and set
the air regulator between 25 and 90
PSI.
SKU 66103
For technical questions, please call 1-800-444-3353.
Page 9
8. When you are completely finished or
are stopping for the day, disconnect
and empty the Plastic Hopper. Flush
the system with fresh cold water.
Rinse and clean the Plastic Hop-
per and the Gun Body and let both
dry completely before storing inside,
away from children.
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 gun
trigger before performing any
inspection, maintenance,
nozzle changes, or cleaning
procedures.
9. If the tool requires more force to
accomplish the task, verify that the
tool receives sufficient, unobstructed
airflow (CFM) and increase the
pressure (PSI) output of the regulator
up to the maximum air pressure
rating of this tool.
tO preVent seriOus
injury FrOm tOOl
Failure:
cautiOn! tO preVent tOOl
and accessOry Failure,
resulting in injury:
do not exceed the tool’s maximum
air pressure rating.
do not use damaged
equipment. if abnormal
noise, vibration, or leaking
air occurs, have the problem
corrected before further use.
If the tool still does not have sufficient
force at maximum pressure and
sufficient airflow, then a larger tool
may be required.
cleaning, maintenance, and
lubrication
note: These procedures are in addition to
the regular checks and maintenance
explained as part of the regular op-
eration of the air-operated tool.
user-maintenance
instructiOns
1. daily - air supply maintenance:
Every day, perform maintenance on
the air supply according to the com-
ponent manufacturers’ instructions.
Performing routine maintenance on
the air supply will allow the tool to
operate more safely and will also
reduce wear on the tool.
Procedures not specifically
explained in this manual
must be performed only by a
qualified technician.
SKU 66103
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Page 10
troubleshooting
problem
possible causes
likely solutions
Decreased output. 1. Not enough air pressure and/ 1. Check for loose connections and make sure
or air flow.
that air supply is providing enough air flow
(CFM) at required pressure (PSI) to the
tool’s air inlet. do not exceed maximum air
pressure.
2. Obstructed trigger.
2. clean around trigger to ensure free
movement.
3. Blocked air inlet screen (if
equipped).
3. Clean air inlet screen of buildup.
4. Air leaking from loose
attachment.
4. Make sure attachments are properly
assembled to the housing and are tight.
5. Have qualified technician clean and lubricate
mechanism. Install in-line filter in air supply
as stated in Initial Set Up: Air Supply.
5. Mechanism contaminated.
Severe air
leakage.
(Slight air leakage
is normal,
especially on older
tools.)
1. Cross-threaded housing
components.
1. Check for incorrect alignment and uneven
gaps. If cross-threaded, disassemble and
replace damaged parts before use.
2. Loose housing.
2. Tighten housing assembly. If housing cannot
be tightened properly, internal parts may be
misaligned.
3. Damaged valve or housing.
3. Replace damaged components.
4. Dirty, worn or damaged valve. 4. Clean or replace valve assembly.
Product not
spraying correctly.
1. Material too thick/thin.
1. Check material being sprayed for proper
viscosity. Ordinarily texture products should
be the consistency of heavy cream. Wall
Texturing products are usually a bit heavier
than deck protecting products.
2. Nozzle to large/small.
2. If product is spraying to heavily, try using a
smaller Nozzle. Too light, change to a larger
Nozzle.
Follow all safety precautions whenever diagnosing or servicing the
tool. disconnect air supply before service.
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.
SKU 66103
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Page 11
parts list
parts list
part
description
Q’ty
part
description
Q’ty
1
Retaining Ring
1
1
1
1
1
1
1
2
1
2
1
1
1
1
8F Fluid Control Knob
1
1
1
1
1
1
2
1
1
1
1
1
2A 4.0 mm (3/16”) Nozzle
2B 6.0 mm (1/4”) Nozzle
2C 8.0 mm (5/16) Nozzle
03 Gun Body
04 Nut Guide
06 Gun Needle
07 O-Ring x2
08 Needle Assembly
8A O-Ring x2
8B Fluid Control Knob Body
8C Washer
8D Spring
09 Cage
10 O-Ring
11A O-Ring
12 Air Inlet NIpple
14 Gun Trigger
15
E-Ring
16 Trigger Pin
18 Air Fitting
19 O-Ring
20 Plastic Hopper
21 Hopper Clip
8E Screw
assemBly diagram
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 avail-
able individually as replacement parts.
SKU 66103
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Page 12
limited 1 year 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 one year from the
date of purchase (90 days if used by a professional contractor or if used as rental equip-
ment). This warranty does not apply to damage due directly or indirectly, to misuse,
abuse, negligence or accidents, repairs or alterations outside our facilities, 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 ap-
ply 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 com-
plaint must accompany the merchandise. If our inspection verifies the defect, we will ei-
ther 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 re-
paired 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 specific 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 • (800) 444-3353
SKU 66103
For technical questions, please call 1-800-444-3353.
Page 13
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