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Stesso

Power On & Adjust Pressure for Priming

0:58
10:42
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How To Use a Paint Sprayer.

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What happens here

With the siphon hose in the paint and the prime hose in the discard bucket, power on the paint sprayer. Most sprayers, like the Graco 440 shown, will initially be in a 'clean' or low-pressure mode. Adjust the pressure dial upwards to the appropriate setting for priming (e.g., around 1800 PSI on a Graco 440, indicated by a green light). Ensure the prime valve is in the 'prime' position (typically pointing downwards, directing fluid through the prime hose). Hold the prime hose securely in the discard bucket as the sprayer starts to avoid messy kick-ups caused by initial pressure or air bubbles.

Goal: Turn on the sprayer, set the pressure dial, and engage the prime valve to start circulating fluid and remove air from the system.

Tools and materials

  • Airless Paint Sprayer — Operating the sprayer and adjusting settings
  • Discard Bucket — To receive fluid from the prime hose during this step

What they say

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going to grab the prime valve and that's where we're going to take our discard bucket we're going to set it up next to the sprayer and then grab your your prime hose this small hose that guy there you're going to set it in the discard bucket and then we've got power run we've already stretched out our hose and we've got our gun back here with us you're going to go ahead and turn when you turn it on it's going to be on clean you're going to go ahead and bump that up to on a 440 it's just when the light starts to turn green for what we're spraying so we're going about 1800 psi so you go ahead and power it on and then i always hold the prime hose when we're getting started just in case there's some pressure and it kicks up we don't want to make a mess so if you've never used

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