Hitachi 308640 manual Spray Pattern Troubleshooting

Troubleshooting

Spray Pattern Troubleshooting

Problem

Fluttering or spitting spray

Irregular pattern

Pattern pushed to one side, same side of air cap gets dirty

Cause

Insufficient fluid supply

Air in paint supply line

Attempting to ªfeatherº (partially trig- ger) the gun.

Fluid build-up or spray tip partially plugged

On defective side of pattern, air horn holes are partially or totally plugged

Air horn holes partially or totally plugged

Solution

Adjust fluid regulator or fill fluid supply tank.

Check, tighten siphon hose connec- tions, bleed air from paint line.

Cannot ªfeatherº with an AA gun. Feathering will cause drastic reduc- tion of pressure at the tip, resulting in poor atomization and/or spitting.

Clean spray tip. See page 11.

Clean air horn holes with solvent and soft brush. See page 11.

Clean air horn holes with solvent and soft brush. See page 11.

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