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8.2
Defects table
Visualizer of typical spray pattern problems
Spray pattern
Fault identification
Spray jet is distorted.
Spray jet is bent or tapered.
Spray jet is too thick in the middle.
Spray jet is split.
Spray jet is uneven (pulsating).
Fault description
Cause
Remedy
No material
Flow cup empty
Check flow cup. Top up, if necessary.
Material escapes at the
needle gland.
Needle gland worn
out
Needle gland loose
Tighten needle gland sensitively.
Air escapes between valve
pin and housing.
Valve seal worn out.
Spray jet is distorted.
Air cap is misaligned. Rotate air cap into the required posi-
6.4 “Alignment of the air cap”
Spray jet is bent or tapered.
Bores in air cap are
soiled.
Clean and check air cap. Replace air
Faults
11/2017
EcoGun AS MAN 1AF - MSG00020EN
19/36