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Manual de usuario DeVilbiss, modelo JGA-510

Fabricar: DeVilbiss
Tamaño del archivo: 170.41 kb
Nombre del archivo: DevilbissJGAConv.pdf
Idioma del manual:en
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Resumen del manual


DESCRIPTION The JGA-510 can be utilized with the wide range of air caps and needles. It is a general purpose, heavy duty, high production spray gun suitable for use with most types of materials. The fluid tip and needle and internal fluid passages are stainless steel. Conversion to HVLP -The JGA-510, plus JGA-503 models, can be converted to HVLP if desired. Contact DeVilbiss for information. Note This gun includes 300 series stainless steel fluid passages and 300/400 series tip and needle. Guns may be used with chlorinated solvent materials, but see page 2 for additional warnings. Important: This gun may be used with most common coating and finishing materials. It is designed for use with mildly corrosive and non-abrasive materials. If used with other high corrosive or abrasive materials, it must be expected that frequent and thorough cleaning will be required and the necessity for replacement of parts will be increased. OPERATION Note Protective coating and rust inhibitors have been used to keep the gun in good condition prior to shipment. Before using the gun, flush it with solvent so that these materials will be removed from fluid passages. Strain material thru 60 or 90 mesh screen. Adjust fluid pressure to deliver the desired paint volume. Adjust air pressure and flow to provide a uniform dispersion of atomized paint throughout the pattern. Keep air pressure as low as possible to minimize bounce - back and overspray. Excessive fluid flow will result in heavy center spray patterns. Inadequate flows may cause the pattern to split. See “Troubleshooting”, Page 6, if any problems occur. PREVENTIVE MAINTENANCE To clean air cap and fluid tip, brush exterior with a stiff bristle brush. If necessary to clean cap holes, use a broom straw or toothpick. Never use a wire or hard instrument. This may scratch or burr holes causing a distorted spray pattern. To clean fluid passages, remove excess material at source, then flush with a suitable solvent using a device such as the SolventSaver™ (see Accessories). Wipe gun exterior with a solvent dampened cloth. Never completely immerse in solvent as this is detrimental to the lubricants and packings. Note When replacing the fluid tip or fluid needle, replace both at the same time. Using worn parts can cause fluid leakage. Matched sets are available for most pressure feed combinations. See Chart 3. Matched sets are particularly recommended with thinner, less viscous materials. Also, replace the needle packing at this time. Lightly lubricate the threads of the fluid tip before reassembling. Torque to 20-25 ft. lbs. Do not overtighten the fluid tip. To prevent damage to the fluid tip (4) or fluid needle (33), be sure to either 1) pull the trigger and hold while tightening or loosening the fluid tip or 2) remove fluid needle adjusting screw (28) to relieve spring pressure against needle collar. FLUID INLET GASKET (7) REPLACEMENT INSTRUCTIONS 1. Remove fluid inlet adapter with appropriate wrench. 2. Clean Loctite from gun body inlet threads and seal area. 3. Place gasket (7) squarely onto the fluid inlet adapter and push it down until it is flat against the boss. 4. Place a couple of drops of medium strength blue No. 242 Loctite on threads before installing fluid inlet adapter. 5. Torque fluid inlet adapter to 20-25 ft. lbs., and tighten locknut. SPRAY GUN LUBRICATION Daily, apply a drop of SSL-10 spray gun lube at trigger bearing stud (21) and the stem of the air valve (13) where it enters the air valve assembly (17). The shank of the fluid needle (33) where it enters the packing nut (19) should also be oiled. The fluid needle packing (18) should be lubricated periodically. Make sure the baffle (6) and retaining ring (1 or 2 ) threads are clean and free of foreign matter. Before assembling retaining ring to baffle, clean the threads thoroughly, then add two drops of SSL-10 spray gun lube to threads. The fluid needle spring (30) and air valve spring (12) should be coated with a very light grease, making sure that any excess grease will not clog the air passages. For best results, lubricate the points indicated, daily. A. Trigger Points B. Packing C. Adjusting Valves D. Baffle Threads E. Air Valve Cartridge D A B E ¦ Government NSN No. 4940-01-046-9919 = KK-4987-2. Page 2 SB-2-252-J SAFETY PRECAUTIONS This manual contains information that is improtant for you to know and understand. This information relates to USER SAFETY and PREVENTING EQUIPMENT PROBLEMS. To help you recognize this information, we use the following symbols. Please pay particular attention to these sections. Note Important information that tells how to Information that you should pay spe- Important safety information - A hazard prevent damage to equipment, or how cial attention to. that may cause serious injury or loss of to avoid a situation that may cause life. minor inury. The following hazards may occur during the normal use of this equipment. Please read the following chart before using this equipment. HAZA...


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