HVLP DETAIL
SPRAY GUN
46719
ASSEMBLY 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© 2002 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.
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9. Do not overreach. Keep proper footing and balance at all times. Do not reach over or
across running machines.
10. Maintain tools with care. Keep tools clean for better and safer performance. Follow
instructions for lubricating and changing accessories. Inspect tool cords and hoses
periodically and, if damaged, have them repaired by an authorized technician. The
handles must be kept clean, dry, and free from oil and grease at all times.
11. Disconnect power. When not in use disconnect from compressor.
12. Remove adjusting keys and wrenches. Check that keys and adjusting wrenches
are removed from the tool or machine work surface before plugging it in.
13. Avoid unintentional starting. Do not carry any tool with your finger on the trigger,
whether it is plugged in or not.
14. Stay alert. Watch what you are doing, use common sense. Do not operate any tool
when you are tired.
15. 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
or mounting fixtures; and any other condition that may affect proper operation. Any
part that is damaged should be properly repaired or replaced by a qualified technician.
Do not use the tool if any switch does not turn On and Off properly.
16. Guard against electric shock. Prevent body contact with grounded surfaces such as
pipes, radiators, ranges, and refrigerator enclosures.
17. Replacement parts and accessories. When servicing, use only identical
replacement parts. Use of any other parts will void the warranty.
18. Do not operate tool if under the influence of alcohol or drugs. Read warning
labels on prescriptions to determine if your judgment or reflexes are impaired while
taking drugs. If there is any doubt, do not operate the tool.
19. Use proper size and type extension cord. If an extension cord is required, it must be
of the proper size and type to supply the correct current to the air compressor without
heating up. Otherwise, the extension cord could melt and catch fire, or cause electrical
damage to the air compressor. Check air compressor manual.
20. Maintenance. For your safety, maintenance should be performed regularly by a
qualified technician.
21. Keep aware of air hoses. Be careful not to trip over air hoses while working. Check
air connections periodically.
22. Do not operate Spray Gun near open flames, pilot lights, heaters, or any other
heat source. Make sure you have adequate ventilation. Most solvents and paints are
extremely flammable, especially when sprayed. Never smoke cigarettes in the same
room you are working in.
23. Read labels on cleaning solvents and paint coatings. Chlorinated solvents such
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as 111-Trichloroethane and Methylene Chloride (also known as methyl-chloride)
can chemically react with aluminum and may explode. Many paint sprayers contain
aluminum. Contact solvent manufacturer or paint supplier if your are in doubt.
24. Paints and solvents may be harmful or fatal if swallowed or inhaled. Always
use a respirator when spraying. Avoid prolonged skin contact with solvents or paints
as they will irritate skin. After contact, immediately wash off exposed area with hot,
soapy water.
25. Check all Spray Gun Seals and Air Connection. Before use, make sure the
(#14) is fully tightened to the Cup (#13). Make sure the air hose is securely fastened
to the Body (#3).
Lid
Note: Performance of the compressor (if powered by line voltage) may vary depending
on variations in local line voltage. Extension cord usage may also affect tool perfor-
mance.
Warning:The warnings, cautions, and instructions discussed in this instruction 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.
WARNING: This product contains or, when used, produces a chemical known to the
State of California to cause cancer and birth defects or other reproductive harm.
(California Health & Safety Code 25249.5, et seq.)
Unpacking
When unpacking, check to make sure the parts listed on page 8 are included. If any parts
are missing or broken, please call Harbor Freight Tools at the number on the cover of this
manual as soon as possible.
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Assembly
Refer to Assembly Drawing on page 9.
1. To attach the Cup (#13), screw it onto the Material Sleeve (#10).
2. Screw the Regulator (#30) onto the Air Connector (#28).
Operation
Warning! Never allow the Spray Gun and Cup (#13) to lay on it’s side when the Cup (#13)
is full of paint.
For best service, you should incorporate a
shut-off valve, regulator with pressure gauge,
and filter, as shown. All are available at Harbor
Freight Tools.
Note: It is recommended that you test the Spray
Gun on scrap material, to become familiar with
the available adjustments, prior to use.
1. Remove the Lid (#14) on the Cup (#13) and
add no more than 5.3 ounces of paint. Replace
the Lid (#14).
2. Connect the air hose to the Regulator (#30)
and set the pressure to 43 PSI. Do not exceed
43 PSI.
3. Squeeze the Trigger (#15) to test the
pattern.
4. Spray from a distance of approximately four to eight inches while keeping the Spray Gun
perpendicular to the ground.
5. Maintain your distance as you evenly move from side to side. Do not fan or arc the Spray
Gun or the paint will apply unevenly.
6. When you finish spraying, release the Trigger (#15), and disconnect the air hose.
7. Empty the Cup (#13). Never store the Cup (#13) with paint in it.
Warning! Even after the compressor is shut down, the Cup (#13) may still be pressurized.
Open it slowly and carefully.
Adjustments
1. You can fine tune the air pressure by slowly turning the Regulator (#30) and the Air
Adjustment Screw Valve Assy. (#29). You may also adjust the pressure with the air
compressor. Make sure you do not exceed the recommended 43 PSI.
2. You can adjust the amount of fluid coming through the gun with the Fluid Control
Knob (#19). Loosen the Fluid Contol Knob Lock (#20), make the adjustment, and tighten
the Fluid Contol Knob Lock (#20).
Warning! Keep your hand away from the Trigger (#15) while adjusting jet shape..
3. To adjust the spray pattern, turn the Air Cap (#1).
SKU 46719
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REV 03e, 09g
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TroubleShooting
Problem 1: Heavy top/bottom, or right/left pattern.
Cause:
Material buildup on Air Cap (#1).
Partially plugged Air Cap (#1) center holes.
Remove Air Cap (#1), soak in solvent, and wipe clean.
Material partially plugging Tip of Gun.
Remove Tip and clean.
Solution:
Cause:
Solution:
Cause:
Damaged Paint Needle (#22).
Solution:
Have a qualified technician replace the Paint Needle (#22) .
Problem 2: Heavy Center Pattern
Cause:
Too much paint.
Solution:
Reduce fluid flow with the Fluid Control Knob (#19).
Loosen the the Fluid Contol Knob Lock (#20), make the adjustment and
tighten the Fluid Contol Knob Lock (#20).
Coating too thick.
Cause:
Solution:
Thin out coating.
Problem 3: Split spray pattern.
Cause:
Pressure too high.
Solution:
Cause:
Reduce air pressure at the regulator.
Not enough paint.
Solution:
Increase fluid flow with the Fluid Control Knob (#19).
Loosen the the Fluid Contol Knob Lock (#20), make the adjustment, and
tighten the Fluid Contol Knob Lock (#20)..
Problem 4: Jerky or fluttering spray.
Cause:
Insufficient paint.
Solution:
Cause:
Solution:
Fill Cup (#13).
Gun and Cup (#13) tipped at excessive angle.
Correct angle.
Problem 5: Air mixes with paint.
Cause:
Worn O-ring (#2).
Solution:
Have a qualified technician replace the O-ring (#2).
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Maintenance
Cleaning (Gun should be attached to compressor to complete the cleaning process)
Warning!! Do not use paint strippers on this unit as they will damage the aluminum. Never
allow the unit to lay on it’s side while paint is in the Cup (#13).
1. Empty paint from Cup (#13) and add small amount of clean solvent. Replace Lid (#14)
and shake Cup (#13) vigorously. At the lowest possible pressure, spray out the solvent into
a waste bucket (make sure you are wearing respirator and eye protection).
2. Empty Cup (#13) of remaining solvent and repeat the process until the Cup (#13) solvent
appears clean and free of the paint.
3. Disconnect air supply. Remove surplus solvent and wipe the Cup (#13) clean with a lint
free cloth.
Note: The Cup (#13) may be fully immersed in solvent for no more than 24 hours if need-
ed.
4. Remove the Air Cap (#1) and the Fluid Nozzle (#4). Remove the Gasket (#5) and unscrew
the Packing Screw (#6), and remove it. Use the Brush (#12) to clean the Paint Needle (#22)
with solvent. When replacing the Packing Screw (#6), do not over-tighten. Over-tightening
of the Packing Screw (#6) will result in leakage. Unscrew the Fluid Control Knob Lock
(#20) and remove the Fluid Control Knob (#19). Use the Brush (#12) to clean the gun body
opening that the Fluid Control Knob (#19) fits in, and clean all of the parts.
Reassemble gently. Do not force any parts or they will break.
Note: Always dispose of paints and solvents properly. Consult the local hazardous
waste authority for proper disposal procedures and sites.
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Parts List
Part No. Description
1*
2*
3
Air Nozzle with Brass Cap
0-ring
Body
4*
5*
6
7*
8*
9
Fluid Nozzle
Gasket
Packing Screw
Tallon Seal
Spring
Connector
10* Material Sleeve
11
12
13
14
15
16
17
18
19
20
21
Wrench
Brush
Cup
Lid
Trigger
0-ring
Screw
Trigger Pin
Fluid Control Knob
Fluid Control Knob Lock
Paint Needle Spring
22* Paint Needle
23* Washer
24
25
26
27
28
29
30
31
32
33
Air Valve Assembly
Screw
Control Knob
Spray Regulating Nut Assy.
Air Connector ( 1/4 NPS)
Air Adjusting Valve Assembly
Regulator
Gasket
Gasket
Gasket
*Not available individually as replacement parts
(see Repair Kit and Nozzle Set below)
97080S-RK Repair Kit (Includes #5,7,8,2,23,10)
97080S-NA 1.0MM Nozzle Set (Includes #1,4,22)
NOTE: Some parts are listed and shown for illustration purposes only and are not available
individually as replacement parts.
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Page 8
REV 01/02; REV 07/06
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Assembly Drawing
Part Notes: 1. Part # 24 is a set including 24a, 24b, 24c, 24d, 24e. Parts 24a through 24e
are not listed on the parts list on page 8.
2. Part # 27 is a set including 27a, 27b, 27c, 27d. Parts 27a through 27d
are not listed on the parts list on page 8.
3. Part # 29 is a set including 29a, 29b, 29c, 29d. Parts 29a through 29d are
not listed on the parts list on page 8.
PLEASE READ THE FOLLOWING CAREFULLY
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDEDTHE PARTS DIAGRAM INTHIS
MANUAL AS A REFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBU-
TOR 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 STATESTHAT 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.
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REV 07/06
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LIMITED 1YEAR WARRANTY
Harbor FreightTools 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 equipment). 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 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 verifies 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 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 46719
Page 10
REV 01/07
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