Maintenance; Replacing The Swirl Valve; To Replace The Swirl Valve - WAGNER W 140 P Training Manual

Maintenance

Parts of your sprayer wear out with use and require regular replacement. They
include the swirl valve, piston and spring. These parts are not covered by your
sprayer warranty. More abrasive materials such as acrylic paints and stains
cause these parts to wear out faster than less abrasive materials such as oil-
based paints and stains, thin stains and sealers.

Replacing the swirl valve

The swirl valve is shaped to cause the material to spin as it comes out of the
sprayer. The spinning breaks the material up into a fine spray. As more material
goes through the swirl valve, it wears out the valve and the shape of the valve
changes. When it changes too much to produce a good spray pattern, the valve
needs to be replaced.

To replace the swirl valve:

1. Make certain that the sprayer is unplugged.
2. Turn the spray tip counterclockwise and remove.
3. Pull the old swirl valve out of the pump housing and insert a new one.
4. Place the spray tip over the new swirl valve and tighten it securely by hand.
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