Wagner SprayTech 505 Suction Set Screen, To clean the filter during the painting process

SPRAYING

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Cleaning The Spray Gun Filter

The spray gun includes a filter to catch particles before they reach the spray tip. If this filter becomes clogged or obstructed it will reduce the flow of paint, changing the spray pattern and possibly damaging the filter.

This filter must be cleaned at least daily and perhaps even every four hours with certain types of latex materials.

If the filter is not cleaned at the proper time, it will plug from the top down. When there is about 1 inch of filter that isn't plugged, the heavy flow of paint will blow pin holes in the filter. See Figure 30. This in turn will allow unwanted

6.Insert the top of the filter (Figure 30) into the gun body fitting under the tip of the spray gun. See Figure 31.

Spring

Gun Body Fitting Sealing Washer

particles to get into the spray tip, causing spray tip to clog.

Filter

Filter Housing

Top of Filter

Pin Hole

Figure 30 - Gun Filter Cleaning.

To clean the filter during the painting process:

1. Turn spray PRESSURE CONTROL KNOB to mini- mum setting and turn PRIMING KNOB to PRIME A . This will bleed off the pressure in the paint hose and filter. Trigger gun to be sure pressure is gone. Refer to Pressure Relief Procedure.

2.Remove spray gun from hose using two adjustable wrenches. See Figure 10

3.Unscrew filter housing, using adjustable wrench on the nut at the bottom of the housing.

4.Remove filter being sure not to lose the spring and sealing washer which is located in the bottom of the filter housing.

5.Clean filter thoroughly (or put in a new filter). To clean the filter, swish it in water or the type of solvent appropriate to the paint you are using. If this isn’t sufficient, use a natural or nylon bristle brush dipped in the appropriate solvent or water. Do not use a wire brush or any sharp instrument.

Figure 31 - Gun Filter Cleaning.

7.Replace the spring and sealing washer into the base of the filter housing.

8.Slide the filter housing over the filter and tighten it securely to the gun, using a wrench.

9.Reattach the hose, tightening it securely with two wrenches.

10.Turn PRIMING KNOB to SPRAY B , (Figure 10) increase pressure to its previous setting and resume spraying.

Suction Set Screen

The screen at the bottom of the suction set may also need cleaning periodically. Check it every time you change paint buckets. Remove screen by pulling it out of the retainer with a pliers. Clean the screen with water or solvent and a soft-bristle brush, if needed.

Figure 32 - Remove And Clean Screen

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