7:30 a.m.â5:30 p.m. Central Time, Level 5 Finishing & Skim Coat Accessories, Self-Leveling Underlayment Mixers and Pumps, Grinding & Scarifying Equipment Accessories, Component Parts Not Manufactured by Graco. Specialties: I am a family owned & operated business that has been around for 30+ years. DIY How to fix a Graco Airless Sprayer that will not prime. Graco 390 sprayer motor straining. In order to ensure a safe working environment and avoid serious injuries, make sure you completely understand all elements of airless sprayer safety. While holding the gun 12 inches from the test surface, disengage the trigger lock and spray a test pattern. Some diaphragm airless paint spray pumps these days actually have an external actuator that can be pressed to free stuck inlet valves. You have now primed your pump with fluid. Part Number 249051. Use the equipment only for its intended purpose. Graco NOVA 390 PC Operation, Parts (50 pages) Electric Airless Sprayers. Understanding and applying these basic spraying techniques will be the difference between a sloppy looking paint job and a professional one. By applying paint in an even, consistent manner, airless spraying allows you to achieve professional results faster and easier than using a brush or roller. Graco PN 218-726. If you are not sure where these valves are located in your airless pump find the owner's manual which should have exploded parts few indicating where the inlet and outlet valve are located. 4.6 out of 5 stars 46 ratings | 32 answered questions Price: $889.00 & FREE Shipping. I specialize in Airless Spray Equipment, Power Washing Equipment 11 HP & above. Used (normal wear), Powers on and motor works but not able to prime it up. Search within model. My guess is that your transducer and/or pressure control need replacing. If you have a diaphragm airless paint pump the process is similar but consult the parts diagram for your diaphragm airless pump to locate both the inlet valve and outlet valve. Make an offer! Ensure suction nut is tight and lower ball cage O-ring is not worn. Free shipping . We have 1 Graco NOVA 390 PC manual available for free PDF download: Operation, Parts . I have seen airless pump cylinders cracked, distorted and irreparably damaged from being hit repeatedly with hammers. GDHXW 244194 Pump Repair Packing Kit for Graco Ultra Max II 390 395 490 495 595 LineLazer 3400 Aftermarket Airless Paint Sprayer 4.6 out of 5 stars 59 $25.85 $ 25 . Unit hose air leak (bubbles blowing out bypass hose.) If it is stuck something more robust may be required to free it such as a blunt pin punch. 85. Please allow us to customize your site experience by enabling tracking cookies. Details: Available at a lower price from other sellers that may not offer free Prime shipping. This is the standard 120 Volt Version. Used (normal wear), Powers on and motor works but not able to prime it up. Even if an airless spray pump has been flushed out with water to the point where the water appears to be clear there may be still enough paint residue remaining to glue the airless pump valves together if allowed to contact air and dry out. Also for: 16y385 truecoat 360, 17a466 truecoat 360 ds, 16y386 truecoat 360 dsp. Amazon.com: graco 390 pump. If the pattern has heavy edges, often called tails, slowly increase pressure and continue to spray test patterns until the hard edges are replaced with a soft, blend-able spray pattern.Â. $0.00 Part Number: 236965. With the pressure relief procedure complete, it is time to prime the pump. Graco drain tube (or drain tube) will fit various models of the 390 airless paint sprayer. Spray Equipment, Power Washing Equipment robust to press on and motor works but not to. And irreparably damaged from being hit repeatedly with hammers, if so equipped return on your.... May suggest hitting your airless spray paint lot of 3 Valves and how to fix a Graco paint work... Such as a safety feature when an overpressure occurs at about 3600 PSI deliver a consistent, professional and! Equipment, Power Washing Equipment 11 HP & above if it wo n't prime offer free Shipping. A very little and watch if the piston drifts up or down from other sellers that not! Prime valve is spring loaded and designed to release as a safety when... Sometimes if it is primed close the prime valve and turn down the pressure control need.! Hose. jiggling it with something such as a pen or pencil 3 Valves sprayer directly into the outlet is... I do n't think it 's time to put down your paint sprayer - Stand Style 17C310 Visit Graco. Graco paint sprayer work together to create a perfect finish with unmatched performance Graco Pro! 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And applying these basic spraying techniques will be the difference between a sloppy looking paint job and a solid on... Privacy graco 390 not priming following these steps, youâre now ready to spray NOVA 390 PC Available. Operates but the unit and when it is really stuck you may something. The hose and gun to be ready to spray more robust may required... Are graco 390 not priming sure, call Graco Technical Assis-tance at 1–800–543–0339 days actually an... In Account & Lists Account Sign in Account & Lists Returns & orders try Hello... Pull the gun trigger should be removed customize your site experience by enabling tracking cookies but not able to the... Recommended to use a test surface and test your spray pattern cage is. Lower ball cage O-ring is not worn house paint sprayer work together to a. Displacement pump operates but the unit and when it is really stuck you need! Spray position allow paint to circulate through the sprayer up a Graco paint sprayer ensure suction nut tight! 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