Operating the Sprayer

Before starting spraying each day, squirt upper packing lubricant (Part No. 9992504) into the slots in the upper pump housing.

NOTE: Do not apply so much that it overflows and drips into the paint.

This lubricant keeps the piston seals pliant, minimizing paint bypass and piston wear. If the unit is operated several hours a day, lubricate approximately every 4 hours.

For a new unit, follow the purging steps above. For units already in service, purge water or solvent from the system as described above, depending on the type of paint being used.

After the pump is ready to spray, it may also be necessary to purge the hoses of water or solvent.

1.Make certain that the current limit switch is on the desired setting.

2.Turn the pressure control knob counterclockwise to the lowest setting.

3.Set the PRIME/SPRAY valve to SPRAY.

4.Be sure that the spray gun does not have a tip installed.

5.Turn the gun safety switch to unlock the gun.

6.Turn the pressure control knob clockwise to the halfway point to increase the pressure.

7.Trigger the gun into a waste container until solvent or water is purged from the hose.

WARNING

If a metal container is used, it is necessary to ground the spray gun and container. To do this, hold a metal portion of the gun against the edge of the metal container. Failure to do so may lead to static electric discharge, which may cause a fire.

8.Turn the pressure control knob counterclockwise to its lowest setting.

9.Turn the PRIME/SPRAY knob to PRIME.

10.Trigger the gun to be sure no pressure is left in the hose.

11.Turn the gun safety switch to lock the gun off.

12.Install the spray tip appropriate for the material being sprayed. The thicker the paint, the larger the spray tip required.

13.Set the PRIME/SPRAY valve to SPRAY.

14.Turn the pressure control knob clockwise to its highest setting.

15.Turn the gun safety switch to unlock the gun.

16.Trigger the gun to test the spray pattern. Spray against a scrap piece of cardboard or other test surface.

17.Adjust the unit to the proper pressure setting.

Setting the pressure

The best pressure setting will vary with the type of paint and the size and type of spray tip being used. The thicker the paint, the higher the pressure will need to be.

To find the optimum pressure setting:

1.Turn the pressure control knob clockwise to its highest setting.

2.Trigger the gun and slowly turn the pressure control knob counterclockwise. Stop when you reach the lowest pressure necessary to keep the desired spray pattern and atomization.

NOTE: Until you are satisfied with the spray pattern, spray on a test surface rather than on the surface to be painted.

Using the spray gun

Follow the instructions that came with your spray gun.

Pressure relief procedure

1.Turn the gun safety switch to lock the gun closed.

2.Turn the motor ON/OFF switch to OFF.

3.Place the return line into a container and hold it securely in place.

4.Turn the PRIME/SPRAY valve to the PRIME. The pressure will be relieved and fluid will dump through the return tube.

5.Relieve any pressure remaining in the hose by turning the gun safety switch to unlock the gun and triggering the gun into a container.

WARNING

Always ground the container, including the handle. Failure to do so may result in a static electric discharge, which may cause an explosion or fire.

6. Turn the gun safety switch to lock the gun closed.

NOTE: Leave the PRIME/SPRAY valve on PRIME until you are ready to operate the sprayer again.

Priming the sprayer

1.Turn the PRIME/SPRAY valve to the PRIME.

2.Put the suction tube into the paint container.

3.Turn the pressure control knob counterclockwise to the lowest setting.

4.Turn the ON/OFF switch to ON.

5.Slowly turn the pressure control knob clockwise until the paint begins to flow through the return tube.

6.Turn the pressure control knob counterclockwise to the lowest setting.

7.Set the PRIME/SPRAY valve to SPRAY.

8.Turn the gun safety switch to unlock the gun.

WARNING

If a metal container is used, it is necessary to ground the spray gun and container. To do this, hold a metal portion of the gun against the edge of the metal container. Failure to do so may lead to static electric discharge, which may cause a fire.

9.Trigger the gun into a waste container. Hold it open while slowly turning the pressure control knob clockwise until paint sprays from the gun tip. Keep the gun triggered until all the air is forced out of the system and paint is flowing freely.

10.Release the trigger and turn the gun safety switch to lock the gun closed.

11.Check all fluid connections for leaks. If any are found, follow the pressure relief procedure before tightening the connection.

English

6

© SprayTECH Corporation. All rights reserved.