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graco paint sprayer won t stop running

Find the arrow-shaped handle and turn it so that it is pointing backwards. Also turn the pressure control knob to a higher setting; sometimes the motor will not kick on if the pressure is too low. Clean or replace spark plug. Increase the pressure setting if the motor runs without building sufficient pressure for spraying. Let it run until the paint flows out smoothly, then pull it back up. If it's plugged with dried paint and can't be rinsed, replace it. After that, make sure that your filters and strainers are clean. Use AC power or a different generator. Welcome! The spray fan, meanwhile, determines the pattern that you’re spraying. Even the best spray gun will require maintenance, troubleshooting and repairs. If adjusting the pressure and tip don’t help, then perhaps an airless paint sprayer isn’t the right choice for your project. Check the generator's peak voltage. If you don't have one, a crescent wrench works fine. If you are not using a reversible tip, remove the tip with the Graco tool or a crescent wrench. Dirty filters can affect fluid delivery, which in turn will affect spray pattern. Lubricate the pump after every use with Graco throat seal liquid. Remove spark plug. A tip that’s too large will cause issues with your painting pattern. Scrub it with a bristle brush, or poke the debris out from the inside with a pin. Common Problems with Paint Sprayers and How to Fix Them, That said, paint sprayers aren’t perfect. Graco airless sprayers come in a range of sizes from small electric models to large gas-powered machines designed for very high production and spraying heavy materials such as block fill and epoxy. Aim the gun into a waste pail or scrap piece of cardboard and pull the trigger. Donald has also been a painting contractor since 1979, painting interiors and exteriors. Just right for DIY homeowners and handymen tackling the small-to-midsize household projects. Remove the housing with the Graco tool kit. To learn more about the cookies we use and how to change your preferences, see our Privacy Policy. In all, airless paint sprayers are an invaluable tool for DIYers and professional contractors alike. Learn more about this by clicking here: Viglink Disclosure. Her writing chops include three books on dog care and training, one of which won a prestigious national award in 2003. Try plugging the sprayer directly into the outlet without the extra cord. Hunker may earn compensation through affiliate links in this story. You can check your pump to see how much pressure that you’re using. In most causes, fluttering occurs when the tip of your spray gun has not been tightened enough. Oil is seeping into combustion chamber. It's struggling to maintain a steady spray. First, make sure that your tip size is the right size. If you have ever tried rolling an acoustic "popcorn" ceiling, or painted the exterior of your home with a roller and brush, you can appreciate how efficient painting with an airless sprayer can be. Turn off the power to your sprayer if it still won't build pressure. Many people new to airless spray equipment deal with issues priming their pumps. If that doesn’t solve your problem, then your air distribution ring might be clogged or damaged. First, apply the appropriate amount of pressure for the materials that you’re using. There are a few common causes. 1. Is your pump running but not building up sufficient pressure? In most cases, simply making sure that your sprayer is getting proper electrical power should be enough to fix this problem. It may not be primed, or may have lost its prime. Make sure you have a tight connection between your tube and your unit, and check your tube for holes or kinks. Using a "reverse-a-tip" makes it very easy to clear a clogged tip. Next, make sure you’re using the right amount of pressure. Engine operates, but displacement pump does not operate. Overspray occurs because airless sprayers use high pressure to break up paint. Never poke from the outside or you'll ruin the tip. When spraying stain, we recommend you use a spray tip that restricts the amount of paint coming out of the front, such as a 311 or 413 spray tip. Try using a torque wrench with a ring spanner attachment to tighten your tip while avoiding slip-off damages. Also check to make sure that your suction tube is completely immersed in paint. Pressure control switch is OFF. Overly viscous materials will not spray correctly and you may need to add solvents to your paint. Some people make the mistake of using a large tip and fan width to get heavier coatings, not understanding what each component is for. They’re more efficient, provide a higher-quality finish and get the job done much faster than conventional painting methods. Clear the tip if it becomes clogged. No pressure. We’ll run you through the basics. Be sure the pump is primed. Please allow us to customize your site experience by enabling tracking cookies. Too much or too little pressure for your tip size and materials can also negatively affect your spray patterns. If you squeeze the gun’s trigger but paint only dribbles or spurts, you may have to reset the pressure altogether. There is a ball valve just inside the housing that can become stuck, preventing the paint from being pulled into the pump. Although keeping your Graco airless sprayer clean and well maintained helps to prevent break-downs, knowing how to troubleshoot and fix common problems on the job can save you time and money. The tip of your airless paint sprayer determines how much paint will actually be applied. Pro Series. Tap the metal housing attached to the pickup tube firmly with a hammer. A 33:1 pump increases pressure 33 times; a 53:1 pump increases pressure 53 times. Use the correct tip for the material you're spraying. This should unclog the tip. It's time to put down your paint brushes and rollers and pick up a Graco paint sprayer. Running or cracking paint is usually the result of holding your paint sprayer too close to the surface that you’re painting, leading to an uneven and unattractive finish. Paint hits the painting surface with a high level of force, and not all of it sticks. This amount is usually expressed in gallons per minute. Handle the spray gun with care. If the materials that you’re spraying do not break up well, you’re probably dealing with poor atomization. 2. If your airless paint sprayer stops spraying all of a sudden, it is likely due to a clogged tip. Just make sure that you turn the arrow back to the spray position before you start working again. With most tips, it’s easy to get rid of clogs. There are many different tip sizes. Ensure your paint sprayer always operates at maximum performance—choose genuine Graco parts. Remove pump intake head. Tapping will break it loose. You should be able to use a removal tool and remove the ring so that you can exchange it for a new one, but be forewarned – it will likely be damaged during the process, and you won’t be able to re-install it. Can’t squeeze the trigger? You'll finish your DIY projects a lot quicker when you're using a house paint sprayer indoors and out. You'll finish your DIY projects a lot quicker when you're using a house paint sprayer indoors and out. 3. Make sure the power switch is turned to "on" and the electrical outlet is live if the Graco won't start. If you want to get the most out of your sprayer, then you should know how to fix the most common problems you’ll encounter with your new tool. It seems like a stupid question, but we have to ask – is the safety on? Your inlet valve check fault may also be stuck – again, use the eraser end of a pencil to nudge it. If you see a clog, clean it out and try priming your pump again. Believe it or not, many people forget this step. So, if you’re dealing with too much overspray, you should consider reducing the size of your tip, your spray fan, or both. Pressure seems to go down after holding down trigger for … If this happens, you’ll have to be patient. Remove the filter housing and see if the filter is clogged. All sprayers include a 515 spray tip that sprays a 10-inch spray fan for spraying latex paint on larger surfaces. What To Do If Sprayer Doesn't Spray After Priming. Up to 15 times faster, in fact! Remove the housing with the Graco tool kit. Project Series. Check your inlet screen for clogs and make sure that your suction tube is totally immersed in paint. Is it stuck? Simply twist it around and trigger the gun briefly so the pressure blows the debris out.

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