Place the valve in the prime position and grab the primer hose once you’ve figured out which position is prime and which is spray. If you’re looking for more tips, Infinity Painting has it for you. Point the primer hose in the empty bucket near the top and at a 45-degree angle from the side (the explanation for this is because there is likely to be pressure already built up in the airless and paint will likely burst out of the primer hose when you first turn on the airless to prime it, and you don’t want it to go everywhere). When you turn on the airless paint sprayer, you’ll note that it’s soaking up the fresh paint and pumping the primer hose out. Usually, a cleaning solution would come out first, followed by the colour. Turn the primer valve to the other position when you see the paint coming out, and you’ll see the airless pouring paint into the main hose.
Now that you’ve primed the airless, double-check that it doesn’t have a tip in the gun and move it to the empty bucket. Since the hose leading to the gun usually has cleaning fluid in it, it’s a good idea to spray it out until you see thick paint coming out. Place your tip back in until you have thick paint coming out. Remember that the tip of the sprayer may have an arrow on one side of the handle indicating which direction it must be pointed in to spray.
Spraying in the direction of the grain of the material is a good rule of thumb when painting your home. So, if your siding runs horizontally, you’ll want to spray horizontally. Often, while spraying, keep the gun about 12 inches away from the substance you’re spraying. When spraying, do not pull the handle while keeping your hand still. This can spray a large amount of paint in a single area, causing it to spill. So, when you go to depress the handle, keep your hand going.