Summary

This video explains how to prime the paint pump before starting production. The process flushes out solvent, loads paint into the system, and restores proper pressure to the machine and guns.

Quick Guide

Preparation

  1. Verify air supply is OFF by turning the air regulator down to zero.

  2. Open the L-port (ball) valve to relieve pressure to the guns.

  3. Confirm system pressure is at zero.

Prime the Pump

  1. Place the pickup tube into the paint container.

    • Optional: Stroke the pump briefly before inserting to clear drips and create an air break.

  2. Allow the pump to draw paint through the system.

    • Solvent will drain out first from the return/drain line.

  3. Continue until paint (not solvent) is flowing from the drain hose.

Restore Pressure

  1. Close the L-port valve to stop the return flow.

    • This re-pressurizes the system toward the machine.

  2. Turn air pressure back on.

    • Typical operating range: 4–5 bar.

  3. Verify fluid pressure at the fluid regulator.

Ready for Production

  • Pump is primed

  • Paint is loaded

  • System is pressurized

  • Machine and guns are ready to spray

Key Notes

  • Always relieve pressure before priming.

  • Ensure solvent is fully purged before spraying.

  • Proper priming prevents contamination and pressure issues.