Identify Sprayer Controls & Lubricate Piston
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
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