Paint Mixture (continued)
The solvent is also used as a clean up medium. Paint mixtures which are to be sprayed are generally less viscous (thinner) than mixtures which are to be applied with a brush. Thus you will most often have to add extra solvent to a paint which is to be sprayed.
When paint is sprayed, it is broken into tiny droplets, then blown by high- pressure air onto the surface. During this spraying process, the surface of each paint droplet will begin to dry. When it hits the work material, the droplet must liquefy again, and mix with the droplets hitting alongside it. Ideally, these droplets will mix evenly forming a smooth surface.
If the paint mixture is too thick, the droplets will not form a smooth layer, and the resulting surface can be described as “pebbly” or “orange peel”. If the paint mixture is too thin, the paint will run, forming long drips before they are thick enough to form a satisfactory coat. Vertical surfaces are more prone to “run” than horizontal surfaces due to the effect of gravity.
Sprayer Controls:
To adjust the spray pattern, loosen the Nozzle Retainer (2) by turning it counter- clockwise, then rotate the Air Nozzle (1), then retighten the Nozzle Retainer (2). For a vertical spray pattern, the “ears” of the Air Nozzle (1) should be horizontal. For a horizontal pattern, the “ears” should be vertical. In other words, the position of the Air Nozzle and the spray pattern are opposite.
To control the amount of paint mixture being sprayed, adjust the Fluid Valve Control Knob (33). Turning the Knob clockwise will reduce the amount of paint, turning it counterclockwise will increase the amount of paint available. CAUTION: Do not overtighten the Knob, as this will cut off the paint supply, and may damage the Fluid Needle Seats (30). Do not remove the Fluid Adjusting Valve Assembly (28).
To control the amount of air pressure passing through the Sprayer, adjust the Air Valve Control Knob (40). Turning the Knob clockwise will reduce the air pres- sure, and turning it counterclockwise will increase the air pressure. CAUTION: Do not overtighten the Knob, as this will cut off the air supply, and may damage the Air Ball Valve (36). Do not remove the Air Adjusting Valve Assembly (34).
To adjust the Trigger Valve Assembly (22), turn the Trigger Valve Adjust Knob clockwise to reduce the pressure required on the Trigger (8) to operate. Turn the Trigger Valve Adjust Knob counterclockwise to increase the pressure required on the Trigger (8) to operate.
SKU 92126 For technical questions, please call | Page 7 |
