Why is my Graco paint sprayer leaking?
The spray gun is leaking from the Nozzle This occurs when the Needle Packing Nut is too tight, compressing the Needle Packing too tightly around the Needle. This occurs when the Needle Packing nut is too loose. Remember that the needle packing must be tight enough to prevent any leakage of paint material.
Why is my airless spray gun spitting paint?
Spray guns spit when air is being introduced into the fluid outside of at the air cap. A loose fluid nozzle does not properly seat in the tip of the spray gun and causes air to enter the fluid supply resulting in spitting.
Why am I getting lines when I spray paint?
The main causes of streaks and disturbances in the spray pattern when using Airless devices are: Pressure set too low. Nozzle worn. Material supply disrupted (eg clogged filters)
What would cause a paint sprayer to not prime?
If the siphon hose has a hole in it or is not tightly secured to the airless sprayer the system may not be sealed and as a result, may suck air in while trying to pick up material. This can lead to the system not pressurizing well.