Central Pneumatic HVLP DETAIL SPRAY GUN 46719 User manual

HVLP DETAIL
SPRAY GUN
46719
ASSEMBLY AND OPERATING INSTRUCTIONS
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©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.
Revised Manual 10k

Page 2SKU 46719
Specifications
Save This Manual
You will need the manual for the safety warnings and precautions, assembly instruc-
tions, operating and maintenance procedures, parts list and diagram. Keep your in-
voice with this manual. Write the invoice number on the inside of the front cover. Keep
the manual and invoice in a safe and dry place for future reference.
Safety Warnings and Precautions
WARNING: When using tool, basic safety precautions should always be followed to
reduce the risk of personal injury and damage to equipment.
Read all instructions before using this tool!
1. Keep work area clean. Cluttered areas invite injuries.
2. Observe work area conditions. Do not use machines or power tools in damp or
wet locations. Don’t expose to rain. Keep work area well lighted. Do not use
electrically powered tools in the presence of flammable gases or liquids.
3. Keep children away. Children must never be allowed in the work area. Do not let
them handle machines, tools, or extension cords.
4. Store idle equipment. When not in use, tools must be stored in a dry location to
inhibit rust. Always lock up tools and keep out of reach of children.
5. Do not force tool. It will do the job better and more safely at the rate for which it
was intended. Do not use inappropriate attachments in an attempt to exceed the
tool capacity.
6. Use the right tool for the job. Do not attempt to force a small tool or attachment
to do the work of a larger industrial tool. There are certain applications for which
this tool was designed. Do not modify this tool and do not use this tool for a
purpose for which it was not intended.
7. Dress properly. Do not wear loose clothing or jewelry as they can be caught
in moving parts. Protective, electrically non-conductive clothes and non-skid
footwear are recommended when working. Wear restrictive hair covering to
contain long hair.
8. Use eye and ear protection. Always wear ANSI approved impact safety goggles.
Wear an ANSI approved dust respirator when spraying.
Cup Capacity 5.3 Ounces
Air Inlet 1/4” NPS
Recommended PSI 43 PSI
Dimensions 12-3/4” x 6-1/8” x 3-7/8”
Nozzle Size 0.161”
Weight 1.15 Lbs.
Recommended Hose 3/8” I.D.
REV 02a; 07a

Page 3SKU 46719
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.

Page 4SKU 46719
23. Read labels on cleaning solvents and paint coatings. Chlorinated solvents such
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
Lid (#14) is fully tightened to the Cup (#13). Make sure the air hose is securely
fastened to the Body (#3).
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 performance.
Warning: The warnings, cautions, and instructions discussed in this instruction 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: 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.

Page 5SKU 46719
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
3. Knob (#19). Loosen the Fluid Contol Knob Lock (#20), make the adjustment, and
tighten the Fluid Contol Knob Lock (#20).
4. Warning! Keep your hand away from the Trigger (#15) while adjusting jet shape..
5. To adjust the spray pattern, turn the Air Cap (#1).
REV 03e, 09g

Page 6SKU 46719
Problem 1: Heavy top/bottom, or right/left pattern.
Cause: Material buildup on Air Cap (#1).
Partially plugged Air Cap (#1) center holes.
Solution: Remove Air Cap (#1), soak in solvent, and wipe clean.
Cause: Material partially plugging Tip of Gun.
Solution: Remove Tip and clean.
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 Control Knob Lock (#20), make the adjustment and
tighten the Fluid Control Knob Lock (#20).
Cause: Coating too thick.
Solution: Thin out coating.
Problem 3: Split spray pattern.
Cause: Pressure too high.
Solution: Reduce air pressure at the regulator.
Cause: Not enough paint.
Solution: Increase fluid flow with the Fluid Control Knob (#19).
Loosen the the Fluid Control Knob Lock (#20), make the adjustment, and
tighten the Fluid Control Knob Lock (#20)..
Problem 4: Jerky or fluttering spray.
Cause: Insufficient paint.
Solution: Fill Cup (#13).
Cause: Gun and Cup (#13) tipped at excessive angle.
Solution: Correct angle.
Problem 5: Air mixes with paint.
Cause: Worn O-ring (#2).
Solution: Have a qualified technician replace the O-ring (#2).
TroubleShooting

Page 7SKU 46719
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.
4. Note: The Cup (#13) may be fully immersed in solvent for no more than 24 hours if
needed.
5. 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.
6. 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.

Page 8SKU 46719
NOTE: Some parts are listed and shown for illustration purposes only and are not available
individually as replacement parts.
Part No. Description
1* Air Nozzle with Brass Cap
2* 0-ring
3 Body
4* Fluid Nozzle
5* Gasket
6 Packing Screw
7* Tallon Seal
8* Spring
9 Connector
10* Material Sleeve
11 Wrench
12 Brush
13 Cup
14 Lid
15 Trigger
16 0-ring
17 Screw
18 Trigger Pin
19 Fluid Control Knob
20 Fluid Control Knob Lock
21 Paint Needle Spring
22* Paint Needle
23* Washer
24 Air Valve Assembly
25 Screw
26 Control Knob
27 Spray Regulating Nut Assy.
28 Air Connector ( 1/4 NPS)
29 Air Adjusting Valve Assembly
30 Regulator
31 Gasket
32 Gasket
33 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)
Parts List
REV 02a; 06g

Page 9SKU 46719
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 PROVIDED THE PARTS DIAGRAM IN THIS
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 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.
REV 06g

Page 10SKU 46719 REV 07a; 118
90 Day Warranty
Harbor Freight Tools Co. makes every effort to assure that its products meet high quality and durability stan-
dards, and warrants to the original purchaser that this product is free from defects in materials and workman-
ship 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 ac-
tivity, 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 MER-
CHANTABILITY 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 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 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]