Operation

Operation

1.Connect a grounded fluid hose.

2.Without spray tip, flush pump. Use lowest pressure possible.

3.Prime. Refer to sprayer manual.

4.Follow Pressure Relief Procedure.

5.Install spray tip and tip guard.

6.RAC tips only: Be sure the arrow-shaped tip faces forward.

7.Hold gun perpendicular and approximately 12 inches (304 mm) from surface. Wear gloves if fluid temperature exceeds 110°F (43°C).

8.Move gun first, then pull gun trigger to spray onto test paper.

a.Adjust fluid pressure until spray is completely atomized.

b.If adjusting pressure does not give a good spray pat- tern, follow Pressure Relief Procedure, then try another tip size.

9.Trigger gun full-open or full-close.

Adjusting Spray Pattern

The spray tip orifice and spray angle determine pattern coverage and size. When you need more coverage, use a larger spray tip rather than increasing fluid pressure.

1.Follow Pressure Relief Procedure. Engage trigger lock.

2.Loosen tip guard retaining nut.

3.Align guard horizontally to spray a horizontal pattern. Align guard vertically to spray a vertical pattern.

4.Tighten nut.

Cleaning Tips/Clearing Clogs

Clean tip and tip guard at end of each work day.

1.Follow Pressure Relief Procedure. Engage trigger lock.

2.Clean spray tip as follows:

a.RAC tips: Rotate tip 180°. Disengage trigger lock. Trigger gun into pail or onto ground to remove clog. Engage trigger lock. Rotate tip 180° back to spray position.

b.Flat tips: Remove tip and clean with a solvent-soaked brush.

3.RAC tips: If tip is still clogged:

a.Shut off sprayer and disconnect power source.

b.Open fluid drain valve (see System Requirements on page 3) to relieve pressure.

c.Remove and clean spray tip.

Maintenance

Flushing

Flush pump and gun before fluid can dry in it. If available, use flushing procedure provided in your pump or sprayer manual instead of this procedure.

1.Follow Pressure Relief Procedure. Engage trigger lock.

2.Remove spray tip and guard from gun. Clean with solvent.

3.Put the pump intake in a grounded pail of compatible solvent.

4.Start pump at its lowest pressure.

5.Disengage trigger lock, then trigger gun into the paint pail. When solvent appears, release trigger.

6.Trigger gun into solvent pail. Circulate fluid until system is thoroughly flushed.

7.Follow Pressure Relief Procedure. Engage trigger lock.

Cleaning/Replacing Filter

1. Follow Pressure Relief Procedure. Engage trigger lock.

2. Disconnect trigger guard from gun body by pushing up on guard hook and pulling it out of notch.

3. The trigger guard beneath

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the gun handle can then be used as a wrench to loosen the nut.

4. When alignment notches are no longer engaged, use your hand to twist handle and

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remove it from gun head.

5.Remove filter.

6.Clean filter using a soft brush.

7.Replace filter.

8.Apply light coating of grease to threads and then attach.

9.Use trigger guard to tighten the nut.

10.Reattach the trigger guard to the gun.

Cleanup

Flush gun after each work shift and store in a dry location. Do not leave the gun or any parts in water or cleaning solvents.

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Graco Inc 7, 5 important safety instructions Operation, Maintenance