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Fabricar: Harbor Freight Tools
Tamaño del archivo: 1.16 mb
Nombre del archivo: 66222.pdf
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Resumen del manual
If the paint is too thin, you will get poor coverage, drips and runs, and excessive drying of the paint in the air. Proper thinning varies with the mate3. rial being used and local temperature and humidity. In most cases, thinning will be approximately 10% and not more than 30%. Test the paint viscosity by dipping 4. a stick into the paint, then observing the rate paint drips from the end. Properly thinned paint will drip about 1 per second. Follow paint manufacturer’s recom5. mendations. Experiment with scrap material to determine the correct paint viscosity. Always strain the paint when pouring 6. it into the Cup (28). This will prevent lumps or impurities from clogging the Fluid Nozzle (2). Adjust the Air Pressure Adjust the air pressure by turning the 1. Knob on the Air Regulator (37). Pull the Knob out to release, turn to adjust, then press back in to lock. The air pressure setting can be read on the Air Pressure Gauge (38). The recommended pressure is 15 to 45 PSI. CAUTION! To prevent tool and accessory failure, resulting in injury: Do not exceed the tool’s maximum air pressure rating. Air pressure can be fine adjusted us2. ing the Air Adjustment Valve (31). Air pressure too high will cause splattering, too low will cause drizzling. Adjust the Paint Volume The amount of paint being sprayed 1. can be adjusted with the Fluid Control Knob (12). To adjust, release the Lock Nut (11) by turning it slightly counterclockwise. Turn the Fluid Control Knob (12) 2. all the way clockwise to turn off paint flow. Using a scrap material, squeeze the Trigger (36) all the way. With the Trigger squeezed, turn the Fluid Control Knob (12) counterclockwise to increase paint flow. When the paint pattern is smooth, 3. lock the setting by turning the Locknut (11) clockwise. Adjusting the Fan Direction and Pattern The fan shaped spray direction of the 1. paint can be adjusted by turning the Air Cap (1). Loosen the lock ring, turn the Air Cap as needed then retighten the lock ring. When spraying in a horizontal motion, 2. have the Air Cap (1) turned horizontally to have a vertical fan. When spraying up and down, have the Air Cap turned vertically to have a horizontal fan. The spray pattern can be adjusted 3. by turning the Spray Regulator (20). Turning the knob counterclockwise will open and flatten the pattern. Turning it clockwise will close the pattern making it more round. Practice on scrap material until the 4. desired pattern is achieved. Understanding Paint Thinners and Solvents Understand the difference between a 1. paint “thinner” and a paint “solvent”. A thinner is used to thin the paint while it is wet. A solvent is used to dissolve the paint after it has dried. There are basically three types of 2. paint: evaporative, chemical and coagulating. Evaporative paints cure when the 3. solvent evaporates. These are quick drying paints, including lacquer and shellac. Chemical paints cure when there is 4. a chemical reaction solidifying the paint, as the solvent evaporates. Oil- based paint and varnish are of this type. They are relatively slow drying, and may cure over months or years. Coagulating paint such as latex and 5. water based finishes are composed of bits of paint suspended in water. As the water evaporates the bits of paint adhere to each other and form a paint film. The paint film chemically bonds together. While the paint is wet, before it has 6. dried, you can thin or clean away the paint using a thinner. Once the paint has dried, in most 7. cases the thinner can no longer be used. You must then use a solvent to remove the paint. Cleaning the paint before it dries, 8. using a thinner, is much easier than cleaning the paint after it dries using a solvent. Always clean this spray gun immedi9. ately after use, before the paint dries. Use the thinner approved by the manufacturer for your paint. Painting Technique with this HPLV Sprayer Your goal in painting with this sprayer 1. is to get good coverage of the work piece. You want an even coat without drips or runs and with a smooth surface. To get an even coat, hold the spray 2. gun 6 to 8 inches away from the work surface. Keep the distance of your gun from the project, as consistent as possible. Start spraying slightly off the edge 3. of the work piece, move the spray across and end slightly off the work piece. Overlap each pass across the work piece. While this method does create over-spray at the edges, it will give you an even coat without heavier or lighter layers at the edge. Paint Type Thinner Solvent Latex Water Paint Remover Water Based Paint Water Paint Remover Oil Varnish or Paint Mineral Spirits, Turpentine Paint Remover Lacquer Lacquer Thinner Lacquer Thinner Shellac Alcohol Alcohol Do not stop your motion when spray4. ing the work piece. Stopping will cause to build up, and run or sag. Hold the Spray Gun vertically. Hold5. ing the gun at an angle will affect the spray pattern. Do not spray too heavily. Heavy spray 6. will cause drips, sags and runs. ...
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