SprayTECH 0551050 Page 7 Owner'S Manual Download

Page: 7 / 24

Always spray at minimum pressure with the gun nozzle tip

removed when using mineral spirits or any other solvent

to clean the sprayer, hose, or gun. Static electricity

buildup may result in a fire or explosion in the presence of

flammable vapors.

1. Follow the “Pressure Relief Procedure” found in the

Operation section of this manual.

2. Remove the gun tip and tip guard and clean with a brush

using the appropriate solvent.

3. Place the siphon tube into a container of the appropriate

solvent. Examples of the appropriate solvent are water for
latex paint or mineral spirits for oil-based paints.

4. Place the return hose into a metal waste container.
5. Set the pressure to minimum by turning the pressure

control knob fully counterclockwise.

6. Move the PRIME/SPRAY valve down to its

PRIME position.

7. Turn on the sprayer by moving the ON/OFF switch to the

ON position.

8. Allow the solvent to circulate through the sprayer and

flush the paint out of the return hose into the metal waste
container.

9. Turn off the sprayer by moving the ON/OFF switch to the

OFF position.

10. Move the PRIME/SPRAY valve up to its

SPRAY position.

11. Turn on the sprayer.

Ground the gun by holding it against

the edge of the metal container while

flushing. Failure to do so may lead to a

static electric discharge, which may

cause a fire.

12. Trigger the gun into the metal waste

container until the paint is flushed out
of the hose and solvent is coming out of the gun.

13. Continue to trigger the spray gun into the waste container

until the solvent coming out of the gun is clean.

14. Follow the “Pressure Relief Procedure” found in the

Operation section of this manual.

15. Unplug the sprayer and store in a clean, dry area.

Do not store the sprayer under pressure.

Cleaning the Spray Tip

1. Flush the gun with solvent immediately after the work is

completed.

2. Oil the sliding pins to prevent them from seizing up.

Should the spray tip become clogged, reverse
the spray tip with the lever and pull the trigger.
Once the obstruction comes out of the spray tip,
release the trigger, reverse the spray tip back to
the spray pattern setting, and resume spraying.

CAUTION

NOTE: For long-term or cold weather storage, pump

mineral sprits through the entire system.

WARNING

NOTE: Hold the return hose in the waste

container when moving the

PRIME/SPRAY valve to PRIME in

case the sprayer is pressurized.

WARNING

Do not attempt to clean the tip with your finger.

Do not use a needle or other sharp pointed instrument to

clean the tip. The hard tungsten carbide is brittle and can

be chipped.

Maintenance

Before proceeding, follow the Pressure Relief Procedure

outlined previously in this manual. Additionally, follow all

other warnings to reduce the risk of an injection injury,

injury from moving parts or electric shock. Always unplug

the sprayer before servicing!

General Repair and Service Notes

1. Before repairing any part of the sprayer, read the

instructions carefully, including all warnings.

Never pull on a wire to disconnect it. Pulling on a wire

could loosen the connector from the wire.

2. Test your repair before regular operation of the sprayer to be

sure that the problem is corrected. If the sprayer does not
operate properly, review the repair procedure to determine if
everything was done correctly. Refer to the Troubleshooting
section to help identify other possible problems.

3. Make sure that the service area is well ventilated in case

solvents are used during cleaning. Always wear
protective eyewear while servicing. Additional protective
equipment may be required depending on the type of
cleaning solvent. Always contact the supplier of solvents
for recommendations.

4. If you have any further questions concerning your

SprayTECH Airless Sprayer, call SprayTECH:

Technical Service...................................

1-800-292-4637

Fax ................................................

1-800-525-9501

Replacing the PRIME/SPRAY Valve

Perform the following procedure using PRIME/SPRAY valve
replacement kit P/N 0507690.

1. Drive the groove pin out of the valve handle.
2. Remove the valve handle and the cam base.
3. Using a wrench, loosen and remove the valve housing

assembly from the pump manifold.

4. Make sure the gasket is in place and thread the new valve

housing assembly into the pump manifold. Tighten
securely with a wrench.