Service Checks - DeVilbiss NEPTUNE Series Operation Manual

SERVICE CHECKS

Normal spray pattern
problem
Will not spray
Improper spray pattern A,B : Material build up on the Air Cap or
Jerky or fluttering
spray
Fluid leaking from
needle packing(18)
Dripping from fluid
tip(5)
Cause
No pressure to gun.
Needle Adjusting Knob (17) not properly
adjusted.
Fluid Tip.
C,D : Incorrect fluid delivery or viscosity.
Insufficient material in the cup or Loose
connector.
Gun material passage plugged.
Worn Needle Packing (18).
Loose or damaged Fluid Tip (5).
Loose of Needle Packing (18)
Worn or damaged Needle Packing (18).
Wor n o r damaged Fluid Ti p (5) o r
Needle (15).
Stuck Needle Packing (18) or Needle (15).
Incorrect adjustment of Needle Packing (18) Hold the end of the Needle (15)
Loose Needle Adjusting Knob (17)
NEPTUNE
Check air and material lines.
Adjust.
A,B : Clean the Air Cap or Fluid
C,D : Adjust.
Fill cup or tighten the Connector.
Clean.
Replace.
Tighten or replace.
Tighten Needle Packing (18).
Tighten or replace.
Replace.
Lubricate.
with your hand to adjust. Fix it but
leave some space so that it can
still move a little bit.
Adjust.
7
Correction
Tip.