Archive March 3, 2019

Airless Paint Sprayer Gun Maintenance Tips

Airless spray guns are popular power tools used for applying paint to surfaces, especially among contractors for industrial, chemical and marine-based projects. Known for their versatility, airless spray guns can also be used for staining and other purposes. Get more informations of find reviews for the top airless paint sprayers

The pressure from airless spray guns allows paint to better penetrate hard-to-reach areas such as pits and crevices. These sprayers also produce a uniform, wet coating of thick paint onto surfaces, ensuring good adhesion and flow-out while also reducing the number of coats that need to be applied. Additionally, coatings applied with airless spray guns typically require less thinner, which in turn decreases the amount of solvent released into the environment. On top of these advantages, airless spray guns are easy to use and the need for paint sprayer repair is likely to be minimal. However, if troubles with your airless paint sprayer do arise, here are some trouble-shooting tips.

Engine Trouble:

  • Turn the engine switch to the “on” position. Make sure the gas tank is full. Connect or replace the spark plug cable if disconnected or damaged. Make sure the fuel shutoff lever is in the “on” position. Remove and clean the spark plug, and then try starting the engine again.

Inoperative Displacement Pump

  • Make sure the pump switch is turned on. If the engine is working but the pump isn’t, turn the pressure adjusting knob clockwise to increase the pressure. Also check the fluid filter and tip filter, proceeding to clean them if clogged.

Low Pump Output:

  • Increase the throttle setting. If too low, raise the pressure as well. Clean the fluid filter or tip filter if dirty or clogged. Also check the length and width of the hose you’re using with the sprayer. A hose half an inch wide measuring over 100 feet long will significantly lower the performance of the sprayer. For optimal performance, it’s best to use a 3/8-inch hose.

Excessive Paint Leakage into Throat Packing Nut:

  • Remove the throat packing nut spacer. If leakage continues, consider tightening the nut slightly.

Pump Prime Difficulty:

  • Check and tighten all fluid connections. Also try reducing the engine speed, proceeding to cycle the pump slowly while priming to get rid of any air that might be present in the pump. If the difficulty of priming is still present, it’s possible there might be a leak in the intake valve. If leakage likely appears to be the problem, proceed to clean the valve and make sure the ball seat is positioned properly and is not damaged or worn.