Installation; Operation; Preventive Maintenance - DeVilbiss NEPTUNE Series Operation Manual

INSTALLATION

1. The air supplied to spray gun must be cleaned air which any water, oil and solid material
removed. To set up the Mist Separator and Air Transformer near the gun is recommended.
The use of air not cleaned may cause coating troubles.
2. Connect fluid cup and air hoses tightly. If tightened loosely, hoses can be removed which
may result in damaging the human body, objects to be coated and other equipment used
together.

OPERATION

1. The recommended pressure of air supplied to gun is in a range of 0.15MPa-0.25MPa.
Do not supply to gun the air pressure in excess of the gun's maximum working pressure
(0.69MPa).
2. Try with the pressure starting from 0.15MPa – 0.25MPa or around as the spraying
pressure varies depending upon the inner diameter of gun, triggering distance, materials
etc.
3. The recommended spray distance is 150-200mm. If the spray distance is too far, good
result does not appear.
4. In order to get uniform finishing, the spray gun should be hold vertically toward the painting
surface.

PREVENTIVE MAINTENANCE

1. Daily lubrication and cleaning is necessary to maintain the best condition of the gun.
2. To clean the gun body, wipe exterior with solvent dampened cloth. Do not submerge the
gun body in solvent as any solids may get into the air passage and cause troubles.
3. Do not leave the gun with solvent in fluid cup. Clean the spray gun after used with clean
solvent and empty the cup. To clean the fluid cup, after removing extra paint, through the
appropriate solvent and flush down the residual paint.
4. The Air Cap can be immersed in solvent and brushed down for cleaning. If orifices are
clogged, use a toothpick to remove obstruction. Never use a steel wire or hard instrument.
This will damage air cap and result in a distorted spray pattern.
5. Do not immerse any plastic parts in solvent for long time.
6. Certain portions of gun should be lubricated. Do not lubricate to any portion where not
instructed. For lubrication, SSL-10 Gun Lube* is recommended (*sold separately,
vegetable not repelling materials).
7. The following portions should be lubricated regularly; Bearing Stud (19), Pattern Valve
(10), threads of cheater Valve (21) and Needle Adjusting Knob (17), Air Valve (12) stem,
portion of Packing Gland (18) here Needle (15) comes in and out.
8. When installing Air Cap (4), make sure no foreign materials adhered on Retaining Ring (1)
and thread of body and then oil one drop of Gun Lube SSL-10.
9. Apply non-silicone grease lightly on Needle Spring (16) and Air Valve Spring (13). Do
not apply too much grease as it may clog the air passage.
NEPTUNE
5