Professional Spray Gun Kit 93312 ASSEMBLY and OPERATING INSTRUCTIONS Diagrams within this manual may not be drawn proportionally. Due to continuing improvements, actual product may differ slightly from the product described herein. Distributed exclusively by Harbor Freight Tools®. 3491 Mission Oaks Blvd., Camarillo, CA 93011 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.
Contents Specifications...................................................................................................................2 Safety Warnings and Precautions...................................................................................3 Unpacking.........................................................................................................................5 Air Connection..............................................................................................................
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 lit. Do not use air tools in the presence of flammable gases or liquids. 3. Keep children away.
14. 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.
25. Never point a spray gun at a person or animal. Serious injury could occur. 26. 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.
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.
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.
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. Preparation Note: Proper paint material mixture helps to ensure less problems. Be sure to follow the manufacturer’s directions.
Pattern Adjustment Warning!! Never exceed the Maximum Inlet PSI of 70 PSI. 1. Remember that the air pressure feeding the gun should be set to 10-30 PSI, using the Air Regulator (24). 2. To set the pattern size specific to the job, use the Pattern Control Knob (65) (see FIGURE 1 on page 6). By turning it counterclockwise (all the way open), the pattern will flatten. Turn the Pattern Control Knob (65) clockwise for a round pattern. See FIGURE 5 below. FIGURE 5 Round/ Closed Flat/Open 3.
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 (52) 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.
Maintenance SOLVENT SELECTION Always follow the paint manufacturer’s recommendations for cleaning, solvent type, and disposing of used solvent. Latex Paints: Use warm, soapy water. IMPORTANT: Do not use mineral spirits on latex paints or the mixture will congeal making it very difficult to remove. 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.
Parts List Part No. Description Part No.
Assembly Diagram SKU 93312 For technical questions, please call 1-800-444-3353; Troubleshooting section at end of manual.
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 (65) is partially closed. (Open Pattern Control Knob (65).) 2. The material is too thick. (Thin material according to the manufacturer’s instructions.) 3. The air pressure is too low.
Troubleshooting (continued) Problem Cause Solution Sputtering Spray 1. 2. 3. 4. 5. 6. Will Not Spray 1. No pressure at gun 2. Fluid control not open enough 3. Fluid too thick 1. Check air hoses 2. Open fluid control 3. Thin fluid or increase pressure (within Maximum range) Overspray 1. Improper application speed 2. Improper distance from workpiece 3. Too much pressure 1. Move moderately and parallel 2. Adjust distance 3. Reduce air pressure Fluid Tip Leakage 1. 2. 3. 4.
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.