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PAINT SPRAY GUN
43760
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
Visit our Web site at http://www.harborfreight.com
TO PREVENT SERIOUS INJURY,
READ AND UNDERSTAND ALL WARNINGS
AND INSTRUCTIONS BEFORE USE.
© ®
Copyright 2000 by Harbor Freight Tools . All rights reserved. No portion of this manual or any
artwork contained herein may be reproduced in any sh
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IMPORTANT: Before using for the first time, the spray gun must be cleaned 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. Contents Unpacking ................................................................................................... 2 Specifications ...........
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Specifications Inlet PSI Range 20-55 PSI, 55 PSI Max. Air Consumption 6 CFM Paint Capacity 1 Quart Air Inlet 1/4” - 18 NPS Nozzle Size .082” Feed Type Siphon 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. Sa
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9. 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. Disconnect air supply. Disconnect air hose when not in use, when changing accessories, and during maintenance. 11. Remove adjusting wrenches. Check that adjusting
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21. 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 wi
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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. I
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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 bou
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IMPORTANT: Before using for the first time, the spray gun must be cleaned 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. Fan Direction and Pattern Adjustment Note: Always make sure the Vent (45) is clear and unclogged. Fan Direction To change the direction of the fan
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Fan Direction and Pattern Adjustment (continued) 3. Turn the Fluid Control Knob (15) clockwise until it is fully closed. See FIGURE 1 on page 6. 4. After setting up a piece of scrap material, squeeze the Trigger (32) in short bursts while turning the Fluid Control Knob (15) 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 ma
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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 6). Pull the Trigger (32) 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
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IMPORTANT: The Spray Gun must be cleaned IMMEDIATELY after use. Improper cleaning is a common reason for the Spray Gun not to work properly. Materials dry quickly which will render the gun useless. It is extremely difficult to remove dry paint from small passages within the Gun. Maintenance SOLVENT SELECTION Always follow the paint manufacturer’s recommendations for cleaning, solvent type, and disposing of used solvent. Latex Paints: DO NOT USE LATEX PAINTS WITH THIS PRODUCT. Oil Based Paints:
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Parts List Pn artDt escriptio Pn ar Descriptio 1tA5 ir Cap Se 3e Nippl 2eF6 luid Nozzl 3t Fluid Join 3yG7 un Bod 3p Screw Ca 4dT8 rigger Stu 3r Fastene 5gS9 top Rin 3r Cup Locking Leve 1b 4P0 attern Control Kno 4r Cup Cove 1b 5F1 luid Control Kno 4e Liquid Tub 1g 6N2 eedle Sprin 4t Cup Cover Gaske 2w 2N3 eedle Packing Scre 4p Cu 2g 3N4 eedle Packing Rin 4y Trigger Valve Assembl 2g 4A5 ir Valve Packing Rin 4y Fluid Control Assembl 3r 2T6 rigge 4y Pattern Control Assembl 3w 3A7 ir Inlet Scre 4e Vi
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Assembly Diagram 13 14 46 12 11 15 10 13 0 9 16 8 7 17 6 18 5 4 19 45 20 8 3 2 5 1 33 22 23 24 34 31 30 32 35 29 28 27 36 26 44 24 37 25 48 38 39 47 40 41 42 43 REV 10/03; 08/05 For technical questions, please call 1-800-444-3353; SKU 43760 Page 13 Troubleshooting section at end of manual.
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IMPORTANT: Improper cleaning is a common reason for the unit not to work properly. Most problems can be avoided or remedied with prompt, thorough cleaning. 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 (14) is partially closed. (Open Pat
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Troubleshooting (continued) Problem Cause Solution 1. Low material level 1. Refill 2. Cup tipped too far 2. Hold upright 3. Clogged Air Vent 3. Clean vent hole Sputtering Spray 4. Loose fluid inlet connections 4. Tighten 5. Dry or loose fluid needle Packing Nut 5. Lubricate and/or tighten 6. Loose/damaged fluid tip/seat 6. Adjust or replace 1. No pressure at gun 1. Check air hoses 2. Fluid control not open enough 2. Open fluid control Will Not Spray 3. Fluid too thick 3. Thin
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90 Day 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 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 activity, improper installation, norm
