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Identify Sprayer Controls & Lubricate Piston

1:39
10:42
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At 1:39 in

How To Use a Paint Sprayer.

What happens here

Understand the three main controls on your airless sprayer: the power switch (on/off), the pressure dial (adjusts spray pressure), and the prime valve (switches between prime and spray modes). The prime valve typically points down for priming (circulating fluid back to the bucket) and up for spraying (directing fluid to the gun). Locate the small reservoir near the piston and fill it with TSL (Throat Seal Liquid) or piston lube. This mineral oil lubricates the piston and helps dissolve any paint residue, preventing it from drying and damaging the piston. Regularly applying TSL at the end of each work day is good practice.

Goal: Familiarize yourself with the sprayer's power switch, pressure dial, and prime valve. Apply piston lube (TSL) to the reservoir to protect and lubricate the piston.

Tools and materials

  • Airless Paint Sprayer — Understanding and interacting with controls
  • TSL — Lubricating the piston and preventing paint dry-out

What they say

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to make a mess so if you've never used an airless sprayer before what type of knobs or valves or buttons do you have on that thing so we've got our this is our siphon this is our prime hose the little hose that comes out next to the siphon which is the big one and then most sprayers are going to follow the same pattern and they're going to be pretty simple you're going to have your pressure knot or your pressure dial here which is going to bring your pressure up or down you're going to have it's on the back side here so you can't see there's a little uh prime valve and that's going to that that is going to make it so that it either sends fluid through the prime hose or to the gun and for the most part if it's pointed down alongside the the prime hose that's going to be prime and then when you click it up that's going to be spray and then you've got your power so really you've only got three little things on this that you need to worry about power your pressure knob and then your prime valve so let's uh go ahead turn it on right now the prime valve is down so it's on prime you're going to hold on to the prime hose just so it doesn't kick up and then we've got to make sure we've got power which we don't have power so most airless sprayers follow the same rules as far as what they have on them you're going to have your power button or power switch which will be located somewhere on the body here you're going to have your pressure valve or not valve but your pressure dial which is going to adjust your pressure either up or down depending on where you want it and then they're all going to have a prime valve somewhere down here on the lower housing and it's going to look almost all of them are going to look like this and they're going to turn down and up and down is almost always going to be prime so a way i remember that is it's coming down along the prime hose right here and so that's going to pull air up the siphon and through the prime hose to get air out of the system and then you can click that up to spray and it's going to start sending fluid instead of through the prime hose to your spray hose and towards your gun and what would this be right here john so here we've got a little reservoir that you can fill with tsl or piston lube which is essentially just a mineral oil and what that does is that's going to go directly to the piston and it helps one lubricate it but two it dissolves any of the paint that's on that actual piston so that nothing's in there…

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