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SERVICE CHECKS
Normal spray pattern
problem
Will not spray
Inproper spray pattern
A
B
C D
Jerky or fluttering
spray
Fluid leaking from
needle packing nut
(14)
Dripping from fluid
tip(4)
Cause
No pressure to gun.
Adjust ing Screw (13) not properly adjusted.
A,B : Material build up on the Air Cap or
Fluid Tip.
C,D : Incorrect fluid delivery or viscosity.
Insufficient material in the cup or Loose
connector.
Gun material passage plugged.
Worn Needle Packing (14).
Loose or damaged Fluid Tip (4).
Loose of Needle Packing (14)
Worn or damaged Needle Packing (14).
W o r n o r d a m a g e d F l u i d T i p (4) o r
Needle(11).
Stuck Needle Packing (14) or Needle(11).
Incorrect adjustment of Needle Packing (14)
Loose Adjusting Screw (12)
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 (14).
Tighten or replace.
Replace.
Lubricate.
Hold the end of the Needle (11)
with your hand to adjust. Fix it but
leave some space so that it can
still move a little bit.
Adjust.
8
DEMI2
Correction
Tip.
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