Skip to main content

Prime the Pump

4:23
10:42
229.5K views

At 4:23 in

How To Use a Paint Sprayer.

What happens here

Before powering on, verify that the prime valve is in the 'down' (prime) position. Turn on the sprayer's power switch and hold the prime hose securely in the discard bucket. Allow the sprayer to run until clean paint or protective fluid consistently flows out of the prime hose. This expels any air from the system. Once paint appears, run it for an additional 5-10 seconds to ensure all air is purged. This process is crucial to prevent spitting or an erratic spray pattern during painting.

Goal: Remove all air from the paint sprayer's system.

Tools and materials

  • Airless Paint Sprayer Graco 440The main equipment for painting
  • Discard BucketCollecting waste fluid during priming
  • Power SwitchTurning the sprayer on/off
  • Prime HoseExpelling air and excess fluid
  • Protector FluidInitial priming to flush the system before paint

What they say

Hide

so reagan's going to hold on to the prime hose he's going to turn it on we've got it switched down to prime already and the pressure is set up um on a titan 440 it's right between the white and green that's going to be about 18 1900 psi go for it hold on one second before he starts this and it starts getting a little noisy he's going to turn that on and he's going to let it run through while the water or the protector comes out until he starts to see paint and then he's going to hold this bucket right here and then as soon as he sees paint coming through he's going to switch that through over to the paint can again and let that paint run back into the paint can and you want to give it about 5-10 seconds of constantly running so that it's getting the air out before we click that back up to spray and what's the importance of holding on to the prime tube and we always want to hold on to that prime tube because uh occasionally in the middle of repriming or things like that it can build up some pressure especially on a bigger pump and then when you turn that down to prime it'll release all of that pressure and kick up and that's how we can always tell we have a new guy because they've got a nice stripe of dirty water or paint coming up their clothing and i think i've done that before and i think you have oh i think everyone does it at least once all right here we go

Auto-generated from the video audio.