7
SERVICE CHECKS
problem
Cause
Correction
Will not spray
No pressure to gun.
Needle Adjusting Knob (17) not properly
adjusted.
Check air and material lines.
Adjust.
Improper spray pattern
A,B : Material build up on the Air Cap or
Fluid Tip.
C,D : Incorrect fluid delivery or viscosity.
A,B : Clean the Air Cap or Fluid
Tip.
C,D : Adjust.
Jerky or fluttering
spray
Insufficient material in the cup or Loose
connector.
Fill cup or tighten the Connector.
Clean.
Gun material passage plugged.
Replace.
Worn Needle Packing (19).
Tighten or replace.
Loose or damaged Fluid Tip (5).
Fluid leaking from
needle packing(19)
Loose of Needle Packing Kit (18)
Worn or damaged Needle Packing (19).
Tighten Needle Packing Kit (18).
Tighten or replace.
Dripping from fluid
Wor n o r da m a g ed Fluid Ti p (5) o r
Replace.
tip(5)
Needle (15).
Stuck Needle Packing (19) or Needle (15).
Lubricate.
Incorrect adjustment of Needle Packing Kit
(18)
Hold the end of the Needle (15)
with your hand to adjust. Fix it but
leave some space so that it can
still move a little bit.
Loose Needle Adjusting Knob (17)
Adjust.
Normal spray pattern
