Harbor Freight Tools Paint Sprayer 93305 User Manual

HVLP SPRAY GUN KIT  
93305  
ASSEMBLY and OPERATING  
INSTRUCTIONS  
Due to continuing improvements, actual product may differ slightly from the product described herein.  
®
3491 Mission Oaks Blvd., Camarillo, CA 93011  
TO PREVENT SERIOUS INjURY,  
REAd ANd UNdERSTANd ALL WARNINGS  
ANd INSTRUCTIONS BEFORE USE.  
Copyright© 2005 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.  
 
Specifications  
Inlet PSI  
30 - 43 PSI, 43 PSI MAX  
10 CFM @ 40 PSI  
2 Quart  
1/4” - 18 NPS  
.057”  
Average Air Consumption  
Paint Capacity  
Air Inlet  
Nozzle Size  
Save This Manual  
You will need the manual for the safety warnings and precautions, assembly instructions,  
operating and maintenance procedures, parts list and diagram. Keep your invoice 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.  
2.  
Keep work area clean. Cluttered areas invite injuries.  
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 lit. Do not use air tools in the  
presence of flammable gases or liquids.  
3.  
4.  
5.  
Keep children away. Children must never be allowed in the work area. Do not let  
them handle machines, tools, extension cords, or air hoses.  
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.  
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. It will do the job better and more safely at the rate for which it was  
intended. Do not modify this tool and do not use this tool for a purpose for which it was  
not intended.  
6.  
7.  
Dress properly. Do not wear loose clothing or jewelry as they can be caught in  
moving parts. Protective, electrically nonconductive clothes and nonskid footwear are  
recommended when working. Wear restrictive hair covering to contain long hair.  
Use eye and ear protection. Always wear ANSI approved impact safety goggles.  
Always wear an ANSI approved dust mask or respirator when using this Spray  
Gun.  
For technical questions, please call 1-800-444-3353;  
SKU 93305  
Page 3  
Troubleshooting section at end of manual.  
 
8.  
9.  
do not overreach. Keep proper footing and balance at all times. Do not reach over  
or across running machines or air hoses.  
Maintain tools with care. Keep tools clean for better and safer performance. Follow  
instructions for lubricating and changing accessories. Inspect tool cords and air hoses  
periodically and, if damaged, have them repaired by an authorized technician. The  
handle must be kept clean, dry, and free from oil and grease at all times.  
10.  
11.  
12.  
Disconnect air supply. Disconnect air hose when not in use, when changing  
accessories, and during maintenance.  
Remove adjusting wrenches. Check that adjusting wrenches are removed from the  
tool before attaching to the air source.  
Avoid unintentional starting. Be sure the trigger is in the Off position when not in  
use and before attaching to the air source. Do not carry any tool with your finger on  
the trigger, whether it is attached to the air compressor or not.  
13.  
14.  
Stay alert. Watch what you are doing, use common sense. Do not operate any tool  
when you are tired.  
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 the trigger does not operate properly.  
15.  
16.  
17.  
Replacement parts and accessories. When servicing, use only identical replacement  
parts. Use of any other parts will void the warranty. Only use accessories intended for  
use with this tool. Approved accessories are available from Harbor Freight Tools.  
Do not operate tool if under the influence of alcohol or drugs. Read warning labels  
if taking prescription medicine to determine if your judgement or reflexes are impaired  
while taking drugs. If there is any doubt, do not operate the tool.  
Use proper size and type extension cord. If an extension cord is required for the  
compressor, it must be of the proper size and type to supply the correct current to the  
compressor without heating up. Otherwise, the extension cord could melt and catch  
fire, or cause electrical damage to the compressor. Check your compressor’s manual  
for the appropriate size cord.  
18.  
19.  
Maintenance. For your safety, maintenance should be performed regularly by a qualified  
technician and the unit must be thoroughly cleaned out after every use. Improper  
cleaning of the Spray Gun is a common reason for the Spray Gun to jam or not  
perform properly.  
Compressed air only. Never use combustible gas as a power source. Never exceed  
the recommended operating pressure of the any of the parts (i.e. hoses, fittings, gun)  
For technical questions, please call 1-800-444-3353;  
SKU 93305  
Page 4  
Troubleshooting section at end of manual.  
 
of the Sprayer system.  
20.  
21.  
Do not spray near open flames, pilot lights, stoves, heaters, the air compressor, or  
any other heat source. Most solvents and coatings are highly flammable, particularly  
when sprayed. Maintain a distance of at least 25 feet from the air compressor. If possible,  
locate the air compressor in a separate room. Do not smoke while spraying.  
Read all of the information concerning coating products and cleaning solvents.  
Chlorinated solvents (e.g. 1-1-1 Trichlorethylene and Methylene Chloride, also known  
as methyl chloride) can chemically react with aluminum and may explode. Many paint  
sprayers contain aluminum. If you have any doubt about potential chemical reactions,  
contact the solvent or coating manufacturer.  
22.  
Materials used when painting or cleaning may be harmful or fatal if inhaled or  
swallowed. Only use in an area with adequate ventilation. Use a respirator or mask  
when painting or using cleaning solvents.  
23.  
24.  
25.  
26.  
Never release the sprayer lid while the cup is pressurized.  
Industrial applications must follow OSHA requirements.  
Never point a spray gun at a person or animal. Serious injury could occur.  
Spraying hazardous materials may result in serious injury or death. Do not spray  
pesticides, acids, corrosive materials, fertilizers, and toxic chemicals.  
27.  
WARNING: The brass components 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.)  
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  
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.  
Unpacking  
When unpacking, check to make sure the product is intact and undamaged. 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.  
For technical questions, please call 1-800-444-3353;  
SKU 93305  
Page 5  
Troubleshooting section at end of manual.  
 
Air Connection  
For best service you should incorporate a regulator and inline filter, as shown in the diagram  
above. Hoses, couplers, regulators, and filters are all available at Harbor Freight Tools.  
Note: Compressor pumps discharge condensed water, oil, or other contaminants along with  
the compressed air. Condensation causes “fish eyes” to appear in paint patterns. To avoid  
this problem, install water/oil removal filters and controls (not included) as close to the Spray  
Gun as possible. If run through the Gun, water and oil will cause damage.  
1.  
You will need to prepare a 1/4” air connector (sold separately) to connect to the air inlet  
on the Spray Gun. First, wrap the 1/4” air connector (not included) with pipe thread  
seal tape before threading it into the Air Inlet (36). Connect the Red Air Hose (41) to  
the Air Outlet Connector (36). Attach the other end of the Red Air Hose (41) to the Air  
Inlet (80) on the Gun.  
2.  
3.  
Set the air pressure on your compressor to 30-43 PSI. Do not exceed the maximum  
air pressure of 43 PSI. Also, set the air pressure on the Air Regulator to 10-30 PSI, as  
shown on the Gauge (38).  
Check the air connection for leaks and then disconnect the tool from the air source.  
Control Layout  
Air Adjustment Knob (73)  
FIGURE 1  
Pattern Control Knob (57)  
Air Cap Set (45)  
Fluid Control Knob (67)  
Fluid Inlet  
Trigger (78)  
Air Inlet (80)  
For technical questions, please call 1-800-444-3353;  
SKU 93305  
Page 6  
Troubleshooting section at end of manual.  
 
IMPORTANT: Beforeusingforthersttime, thespraygunmustbecleaned  
using a solvent based thinner. If not removed, the red oil used by the  
manufacturer for testing and corrosion protection may contaminate paint.  
IMPORTANT: The Spray Gun must be cleaned immediately after use.  
Improper cleaning is a common reason for the Spray Gun not to work.  
FIGURE 2  
Fluid Outlet (39)  
Air Inlet Connector (36)  
Safety Valve (2)  
Fluid Flow Knob (11)  
Air Regulator (24)  
Air Outlet Connector (36)  
A Comparison: Conventional versus HVLP Spray Guns  
Because conventional spray guns require a much higher air cap pressure to atomize  
the paint than HVLP Spray Guns, conventional guns have lower transfer efficiencies  
and more overspray.  
This translates to a significant paint/material savings for HVLP guns, in addition to  
making them more environmentally friendly.  
To qualify as HVLP, the dynamic air pressure going in the Air Cap must be a maximum  
of 10 PSI. The lower the air pressure, the less bounce back and overspray.  
Note: Due to the viscosity of latex and other water-based paints, they are not  
recommended for use with this or other HVLP (High Volume Low Pressure) spray-  
ers.  
See FIGURE 3 below.  
Conventional  
FIGURE 3  
HVLP  
For technical questions, please call 1-800-444-3353;  
SKU 93305  
Page 7  
Troubleshooting section at end of manual.  
 
IMPORTANT: Beforeusingforthersttime, thespraygunmustbecleaned  
using a solvent based thinner. If not removed, the red oil used by the  
manufacturer for testing and corrosion protection may contaminate paint.  
IMPORTANT: The Spray Gun must be cleaned immediately after use.  
Improper cleaning is a common reason for the Spray Gun not to work.  
Preparation  
Note: Proper paint material mixture helps to ensure less problems. Be sure to follow the manu-  
facturer’s directions. Most materials will spray readily if they are thinned properly.  
General tips for Preparation:  
1.  
Mix and thin the paint/materials thoroughly according to the manufacturer’s  
directions.  
2.  
Carefully strain the paint/material through a paint strainer or piece of cheese cloth.  
3.  
Remove (un-thread) the Cup (16) from the Unit. Fill the Cup (16) to approximately 3/4  
full. Thread it back onto the unit. Connect the Fluid Hose (40) form the Fluid Outlet  
(39) to the Fluid Inlet on the Spray Gun.  
4.  
5.  
Start the air compressor.  
To adjust the spray pattern, set up a piece of scrap material to practice on. While  
practicing on the scrap material, check to see that the material you are spraying has  
the appropriate consistency. If it appears to thin, add a very small amount of thinner  
(not included). BE CAREFUL when thinning. Proceed slowly, adding very minimal  
amounts. NEVER exceed the manufacturer’s thinning recommendations.  
Fan direction and Pattern Adjustment  
Fan direction  
To change the direction of the fan from horizontal to vertical, loosen the Lock Ring and  
turn the Air Cap (45) 90 degrees. After the adjustment, tighten the Lock Ring by hand.  
See FIGURE 4 below.  
Lock Ring  
Horizontal Fan  
Air Cap  
FIGURE 4  
Vertical Fan  
For technical questions, please call 1-800-444-3353;  
SKU 93305  
Page 8  
Troubleshooting section at end of manual.  
 
IMPORTANT: Beforeusingforthersttime, thespraygunmustbecleaned  
using a solvent based thinner. If not removed, the red oil used by the  
manufacturer for testing and corrosion protection may contaminate paint.  
IMPORTANT: The Spray Gun must be cleaned immediately after use.  
Improper cleaning is a common reason for the Spray Gun not to work.  
Pattern Adjustment  
Warning!! Never exceed the Maximum Inlet PSI of 43 PSI.  
1.  
2.  
Adjust the Gauge (38) pressure to 10-30 PSI using the Air Regulator (24). If you need  
to reduce the air pressure for specific areas, adjust the Air Adjustment Knob (73).  
To set the pattern size specific to the job, use the Pattern Control Knob (57) (see FIG-  
URE 1 on page 6). By turning it counterclockwise (all the way open), the pattern will  
flatten. Turn the Pattern Control Knob (57) clockwise for a round pattern.  
See FIGURE 5 below.  
FIGURE 5  
Flat/Open  
Round/Closed  
3.  
4.  
Close the Fluid Control Knob (67) and fully open the Fluid Flow Knob (11). See FIGURE  
1 on page 6.  
After setting up a piece of scrap material, squeeze the Trigger (78) in short bursts while  
turning the Fluid Control Knob (67) counterclockwise and observe the spray patterns  
until you see the pattern you want. Also, look at the pattern for consistency. Too much  
air may cause the spray to come out too fine. Reduce the air pressure or allow more  
material to come out by opening the Fluid Control Knob (67). If the spray appears too  
thick (you see globs of paint), close down the Fluid Control Knob (67) slowly, checking  
the mixture after each adjustment.  
See FIGURE 6 below.  
FIGURE 6  
Too Coarse  
Correct  
Too Fine  
(Tighten)  
(Loosen)  
For technical questions, please call 1-800-444-3353;  
SKU 93305  
Page 9  
Troubleshooting section at end of manual.  
 
IMPORTANT: Beforeusingforthersttime, thespraygunmustbecleaned  
using a solvent based thinner. If not removed, the red oil used by the  
manufacturer for testing and corrosion protection may contaminate paint.  
IMPORTANT: The Spray Gun must be cleaned immediately after use.  
Improper cleaning is a common reason for the Spray Gun not to work.  
Techniques  
Note: Before spraying, mask all objects you do not want sprayed and lay cloths (not included)  
on the floors.  
1.  
Always keep the gun at right angles to the workpiece (See FIGURE 7). Pull the Trigger  
(78) slowly and move the Spray Gun in parallel strokes to the object being painted.  
Keep the distance from the object being painted at 6” to 9”. This may slightly differ  
depending on the flow adjustment and the material being sprayed. Do not stop the  
gun movement while spraying. If you stop the gun for even just a slight pause while  
spraying, the paint will build up and run down the workpiece.  
FIGURE 7  
(Heavier coat on one  
side, uneven coverage)  
Incorrect  
(Even coverage)  
Correct (90o)  
2.  
To ensure you don’t allow paint to build up, start moving the Spray Gun before you  
Squeeze the Trigger (78). When you are finished spraying, release the Trigger (78)  
before you stop moving the Spray Gun. Doing so will eliminate distinct overlaps,  
producing a blended (feathered) affect. See FIGURE 8 below.  
Begin  
End  
Squeeze  
Release  
Stroke  
Stroke  
Trigger (78)  
Trigger (78)  
FIGURE 8  
(Top View)  
Note: The speed of the stroke, the adjustment of the Fluid Control Knob (67), and the distance  
from the workpiece, will determine how much paint is being applied. To get the best  
results, try to apply two thin coats of paint versus one thick coat.  
3.  
Clean out the gun thoroughly after EVERY use, according to the instructions  
found on the next page.  
For technical questions, please call 1-800-444-3353;  
SKU 93305  
Page 10  
Troubleshooting section at end of manual.  
 
Maintenance  
SOLVENT SELECTION  
Always follow the paint manufacturer’s recommendations for cleaning,  
solvent type, and disposing of used solvent.  
Note: Due to the viscosity of latex and other water-based paints, they are not recom-  
mended for use with this or other HVLP (High Volume Low Pressure) sprayers.  
Oil Based Paints: Use mineral spirits.  
IF A FLAMMABLE SOLVENT NEEdS TO BE USEd, AdHERE TO THE FOLLOWING:  
1. Follow all of the solvent manufacturer’s clean up instructions and  
safety precautions at all times.  
2. Always flush the Spray Gun a full hose length from the air compres-  
sor.  
3. If collecting flushed solvents into a metal container, transfer into a larger  
nonmetal container, and flush the metal container.  
4. Work far away from any ignition sources in a vapor free area.  
After each use:  
1.  
2.  
Empty the Paint Cup (16) and clean it with the solvent.  
Fill the Paint Cup (16) with solvent and spray it through the Gun into a container, while  
shaking the gun. Once the Paint Cup (16) is empty, repeat the process until the solvent  
comes out clean.  
disconnect from the air source. After disconnecting, be aware that air pressure  
may still remain in the Spray Gun. Point the Gun into the spent solvent container and  
squeeze the Trigger again to make sure no air remains.  
3.  
Remove the Air Cap and soak it in solvent until it is clean. Use an old toothbrush and  
toothpicks to remove any material. do not use metal objects to clean the Air Cap  
or you may damage the drilled passages. Inspect the fluid needle and make sure  
it is not bent. If it is bent, have it replaced by a certified service technician.  
Warning!! Do not immerse the Spray Gun Body in solvent!  
4.  
5.  
6.  
Use the appropriate solvent (depending on the material sprayed) to wipe down the Gun  
body.  
Always lubricate the Spray Gun after cleaning. You may use a non-silicon oil or a light  
lubricant on all threaded connections prior to storing the unit.  
disposal: After cleaning your Spray Gun, properly dispose of your cleaning solutions  
according to the solution manufacturer’s direction and local hazardous waste  
standards.  
For technical questions, please call 1-800-444-3353;  
SKU 93305  
Page 11  
Troubleshooting section at end of manual.  
 
Parts List  
Part  
1
2
3
4
5
6
7
8
description  
Handle  
Safety Valve  
Lock Nut  
Spring  
Valve  
Valve Gasket  
Valve Seat  
Connector  
Screw  
Part  
40  
41  
42  
43  
44  
45  
46  
47  
48  
49  
50  
51  
52  
53  
54  
55  
56  
57  
58  
59  
60  
61  
62  
63  
64  
65  
66  
67  
68  
69  
70  
71  
72  
73  
74  
75  
76  
77  
78  
79  
80  
description  
Fluid Hose  
Air Hose (Red)  
Ring  
Lock Ring  
Gasket  
Air Cap Set  
Fluid Nozzle  
Seat  
Sealing Gasket  
Packing Nut  
Sealing Screw  
Gasket  
9
10  
11  
Nut  
Fluid Flow Knob  
Spring  
Cap  
Suction Tube  
Gasket  
Cup  
Rivet  
Gasket  
Tube  
Screw  
Spring  
Rivet (Qty. 2)  
E-clip  
Air Regulator  
Lock Nut  
Air Adjusting Seat  
Spring Seat  
Air Adjusting Seat  
Spring Seat  
Air Adjusting Screw  
Sealing Nut  
Sealing Gasket  
Valve Gasket  
Nut  
Needle Seat  
Air Needle  
Spring  
Connector (Qty. 2)  
Gauge Seat  
Gauge  
12  
13  
14  
15  
16  
17  
18  
19  
20  
21  
22  
23  
24*  
25*  
26*  
27*  
28*  
27*  
28*  
29*  
30*  
31*  
32*  
33*  
34*  
35*  
36  
37*  
38  
39  
Gun Body  
Needle  
Needle Adapter  
Spring  
Fixed Screw  
Pattern Control Knob  
Rivet  
Gasket  
Sealing Screw  
Adjusting Level  
Valve Seat  
Spring  
Rivet  
Air Adjusting Valve  
O-ring  
Fluid Control Knob  
Gasket  
E-clip  
Fan Adjusting Screw  
Fan Adjusting Stopper  
O-ring  
Air Adjustment Knob  
Rivet  
E-clip  
Trigger Stud  
Trigger Stud  
Trigger  
Fluid Connector  
Air Inlet  
Fluid Outlet Valve  
*Parts 24 through 35 and 37 are available as a kit.  
PLEASE REAd THE FOLLOWING CAREFULLY  
THE MANUFACTURER AND/OR DISTRIBUTOR HAS PROVIDED THE PARTS DIAGRAM IN THIS  
MANUALASAREFERENCE TOOL ONLY. NEITHER THE MANUFACTURER NOR DISTRIBUTOR MAKES  
ANY REPRESENTATION OR WARRANTY OF ANY KIND TO THE BUYER THAT HE OR SHE IS QUALI-  
FIED 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 TECHNICIANSAND NOT BY THE BUYER. THE BUYERASSUMESALL RISKAND LIABIL-  
ITY 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.  
For technical questions, please call 1-800-444-3353;  
SKU 93305  
Page 12  
Troubleshooting section at end of manual.  
 
Assembly Diagram  
NOTE: Some parts are listed and shown for illustration purposes only and are not available  
individually as replacement parts.  
REV 01/07  
Page 13  
For technical questions, please call 1-800-444-3353;  
Troubleshooting section at end of manual.  
 
SKU 93305  
Troubleshooting  
Spray Pattern Diagnosis  
The Patterns below resemble symptoms of spray pattern problems. Please refer to  
the accompanying possible problems if you are experiencing similar difficulties. The  
solution to each problem follows the problem in parentheses.  
Problem 1:  
1. The Pattern Control Knob (57) is partially closed. (Open Pattern Control Knob (57).)  
2. The material is too thick. (Thin material according to the manufacturer’s instructions.)  
3. The air pressure is too low. (Increase air pressure. Make sure air pressure feeding into  
the pot is within the proper range (30-43 PSI) & air pressure as shown on the Gauge (38)  
is within the proper range (10-30 PSI).)  
Problem 2:  
1. High air pressure. (Reduce air pressure at gun.)  
2. Not enough fluid. (Increase fluid.)  
3. Pattern Control Knob (57) open too much. (Partially close Pattern Control Knob (57).)  
Problem 3:  
1. Air Cap plugged. (Clean the Air Cap.)  
2. Air cap loose or dirty seat. (Clean and tighten.)  
3. Dried material on fluid tip. (Use a nonmetallic point to clean the Air Cap.)  
Problem 4:  
1. Dirt on one side of the fluid tip. (Clean the fluid tip.)  
2. Holes on one side of the Air cap are plugged. (Clean the Air cap with a nonmetallic  
point.)  
If the steps above do not solve the problem or if the repairs involved are too  
complex, contact a qualified technician.  
SKU 93305  
For technical questions, please call 1-800-444-3353.  
Page 14  
 
Troubleshooting (continued)  
Problem  
Sputtering Spray  
Cause  
1. Low material level  
Solution  
1. Refill  
2. Cup tipped too far  
2. Hold upright  
3. Clogged Air Vent  
3. Clean vent hole  
4. Tighten  
4. Loose fluid inlet connections  
5. Dry or loose fluid needle  
5. Lubricate and/or tighten  
6. Adjust or replace  
Packing Nut  
6. Loose/damaged fluid tip/seat  
Will Not Spray  
Overspray  
1. No pressure at gun  
1. Check air hoses  
2. Fluid control not open enough  
3. Fluid too thick  
2. Open fluid control  
3. Thin fluid or increase pressure  
(within Maximum range)  
1. Move moderately and parallel  
1. Improper application speed  
2. Improper distance from  
workpiece  
2. Adjust distance  
3. Too much pressure  
1. Dirty tip  
3. Reduce air pressure  
1. Clean  
Fluid Tip Leakage  
2. Tight Packing Nut  
2. Loosen Packing Nut  
3. Replace  
3. Broken fluid needle spring  
4. Worn or damaged tip  
1. Dirty air valve/seat  
4. Replace tip and/or needle  
1. Clean  
Air Leaking from Air Cap  
2. Sticking air valve  
2. Lubricate  
3. Replace  
4. Replace  
3. Damaged air valve spring  
4. Worn/damaged air valve/seat  
5. Bent valve stem  
5. Replace  
Fluid Leaking from Packing Nut 1. Packing Nut loose  
1. Tighten without restricting  
2. Packing worn or dry  
2. Replace or lubricate (non-  
silicone)  
If the steps above do not solve the problem or if the repairs involved are too  
complex, contact a qualified technician.  
SKU 93305  
For technical questions, please call 1-800-444-3353.  
Page 15  
 
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 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, INCLUD-  
ING 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 prod-  
ucts 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  
REV 08c  
For technical questions, please call 1-800-444-3353;  
SKU 93305  
Page 16  
Troubleshooting section at end of manual.  
 

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