Wagner Project Sprayer - Manual (Page 15)

15 English
Maintenance
Replacement Parts
1. Turn the sprayer upside-down while the material
container is removed. Squeeze a small amount of
standard household oil into both the intake (a) and
return (b) openings on the pump housing.
atomizer valve:
The atomizer 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 atomizer
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.
1
1
2 3
Front view of a good atomizer valve.
2 Front view of a atomizer valve after spraying 7-10 gallons
of latex paint. Replace.
3 Front view of a atomizer valve after spraying 7-10 gallons
of latex stain. Replace.
3. Replace the suction tube.
2. Plug in the sprayer. Aim at piece of scrap wood or
cardboard and squeeze the trigger of the sprayer for 2 to
3 seconds while sprayer is still inverted.
Piston and Spring:
The average life of a piston and spring will vary depending on
the types of material being sprayed.
Replace the piston if the sprayer takes longer than 15 seconds
with the suction tube or 3 minutes with the remote suction set
to prime when well lubricated, or if there is an excess amount
of material leaking, refer to the troubleshooting suggestions
listed in this manual. Replace the spring if you notice that it is
broken when you clean the sprayer.
To replace either the atomizer valve or the piston and
spring, follow steps 1-4 in Cleaning the Components
(page 14), and replace the old parts with new ones. When
replaced, follow steps 1-5 in Reassembly (page 14).
4. Replace the material container.
Lubricating your sprayer prior to storage is important to prolong the life of the pump housing components.
• Parts of your sprayer wear out with use and require regular replacement. They include the atomizer valve, piston
and spring. These parts are not covered by your sprayer warranty.
• More abrasive materials such as latex 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.
(a)
(b)
(c) (d)