Harbor Freight Tools Paint Sprayer 02471 User Manual

®
PAINT/TEXTURE  
AIR GUN  
Model 02471  
ASSEMBLY and OPERATING  
INSTRUCTIONS  
®
3491 Mission Oaks Blvd., Camarillo, CA 93011  
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.  
For technical questions and replacement parts, please call 1-800-444-3353  
 
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.  
SKU 02471  
Page 3  
 
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 that is appropriate for type of paint/solvent being used 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  
Cup (#17) is fully tightened to the Body (#3). Make sure the air hose is securely  
fastened to the Air Inlet (#13).  
26. Read and understand all warnings and instructions provided in the instruction manual  
of the air compressor being used.  
27. Never point Paint/Texture Air Gun at people or animals.  
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. Additionally, read all of the warnings  
and instructions provided in the instruction manual of the air compressor you will be  
using.  
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.  
SKU 02471  
Page 4  
 
Assembly  
Refer to Assembly Drawing on page 9.  
1. To attach the Cup (#17), use the Clamp (#18) to connect it to the Body (#3).  
Operation  
Warning! Never allow the Spray Gun and Cup (#17) to lay on it’s side when the Cup (#17) is  
full of material.  
1
Air  
Spray  
Gun  
Air  
Dryer  
Compressor  
For best service, you should incorporate an air dryer, a regulator, and an inline air filter, as  
shown above. We recommend an air dryer to send moisture-free air to the Spray Gun. All are  
available at Harbor Freight Tools.  
1. You will need to prepare a 1/4” air connector (sold separately) to connect to the Air  
Inlet (#13). First, wrap the 1/4” air connector (not included) with pipe thread seal tape before  
connecting to a Air Source Hose (not included).  
2. Attach air hose to the Air Inlet (#13) on the Spray Gun.  
3. Set the air pressure on your compressor to 50-70 PSI. Do not exceed the recommended air  
pressure of 70 PSI.  
4. Check the air connection for leaks.  
5. Turn off the compressor and disconnect the air source hose in preparation to load material.  
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 Cup (#17) by loosening the Clamp (#18). Place the flat end of the cup down on  
a flat surface. Using a funnel (not included) add no more than 1.45 Gallons of material through  
the small opening of the Cup (#17). Insert the opening on the top of the Body (#3) down into  
the open end of the Cup. Secure the Body (#3) and Cup (#17) together using Clamp (#18).  
2. Connect the air hose to the Air Inlet (#13) and set the pressure to 50-70 PSI. Do not exceed  
70 PSI.  
3. Squeeze the Trigger (#14) 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 (#14), and disconnect the air hose.  
7. Empty the Cup (#17). Never store the Cup (#17) with paint in it.  
Warning! Even after the compressor is shut down, the Cup (#17) may still be pressurized.  
Open it slowly and carefully.  
SKU 02471  
Page 5  
REV 06/05  
 
Adjustments  
1. You can regulate the fluid flow with the Regulator Guide (#8). Slowly turn it to fine tune the  
air pressure to meet your needs. You may also adjust the pressure with the air compressor.  
Make sure you do not exceed the recommended 70 PSI.  
2. You can change Nozzles (#2a, #2b, #2c) for different shaped sprays. First, disconnect  
from the air source. Next, unscrew the Retaining Ring (#1). Unscrew the nozzle that is on  
the unit and screw on the one you want to use. Screw on the Retaining Ring (#1).  
It is recommended that you test all three nozzles by spraying on scrap material, to see the  
spray patterns before using them.  
TroubleShooting  
Problem 1: Heavy top/bottom, or right/left pattern.  
Cause:  
Material buildup on Nozzles (#2a, #2b, #2c).  
Partially plugged Nozzles (#2a, #2b, #2c) center holes.  
Remove Nozzles (#2a, #2b, #2c), soak in solvent, and wipe clean.  
Material partially plugging Tip of Gun.  
Solution:  
Cause:  
Solution:  
Cause:  
Remove Nozzles (#2a, #2b, #2c) and clean.  
Damaged Needle Shaft (#9).  
Solution:  
Have a qualified technician replace the Needle Shaft (#9)  
Problem 2: Heavy Center Pattern  
Cause:  
Too much paint.  
Solution:  
Cause:  
Reduce fluid flow with the Regulator Guide (#8).  
Coating too thick.  
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 Regulator Guide (#8).  
Problem 4: Jerky or fluttering spray.  
Cause:  
Insufficient paint.  
Solution:  
Cause:  
Solution:  
Fill Cup (#17).  
Gun and Cup (#17) tipped at excessive angle.  
Correct angle.  
Problem 5: Air mixes with paint.  
Cause:  
Worn Assembly Set (#11).  
Solution:  
Have a qualified technician replace the Assembly Set (#11)  
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Page 6  
 
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 (#17).  
1. Empty paint from Cup (#17) and add small amount of clean solvent. Replace Cup (#17)  
and shake 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 (#17) of remaining solvent and repeat the process until the Cup (#17) appears  
clean and free of the paint.  
3. Disconnect air supply. Remove surplus solvent and wipe the Cup (#17) clean with a lint  
free cloth.  
Note: The Cup (#17) may be fully immersed in solvent for no more than 24 hours if needed.  
4. Loosen the Regulator Guide (#8) to expose the right side of the Needle Shaft (#9). Use  
the toothbrush to clean the Needle Shaft (#9) with solvent. Replace and tighten the  
Regulator Guide (#8) and the Needle Shaft (#9). Do not force any parts or they will break.  
Wipe the entire Body (#3) clean with a lint free cloth.  
Note: Always dispose of paints and solvents properly. Consult the local hazardous  
waste authority for proper disposal procedures and sites.  
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Page 7  
 
Parts List  
Part No.  
1
2a  
2b  
2c  
3
4
5
6
7
Description  
Qty.  
1
1
1
1
1
1
1
1
1
1
1
1
2
1
1
1
1
1
1
1
1
1
Retaining Ring  
Nozzle (.177”)  
Nozzle (.236”)  
Nozzle (.314”)  
Body  
0-ring  
Fitting  
0-ring  
0-ring  
Regulator Guide  
O-ring  
Needle Shaft  
0-ring  
Assembly Set  
O-ring  
Clip Ring  
Air Inlet  
Trigger  
Pin  
E-ring  
Cup  
8
8a  
9
10  
11  
11a  
12  
13  
14  
15  
16  
17  
18  
Clamp  
PLEASE READTHE 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 ORWARRANTY OF ANY KINDTOTHE BUYERTHAT 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.  
NOTE: Some parts are listed and shown for illustration purposes only and are not available  
individually as replacement parts.  
SKU 02471  
Page 8  
REV 06/05  
 
Assembly Drawing  
SKU 02471  
Page 9  
REV 06/05  
 

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