23. Correction of Malfunctions
Problem Cause Remedy
No coating material
emerges from the
nozzle
Nozzle clogged
•
Feed tube clogged
•
Material volume setting turned
•
too far to the left (-)
Feed tube loose
•
No pressure build-up in container
•
Ventilating bore (Fig. 12, 1)
•
clogged
Clean ➞
Clean ➞
Turn to the right (+) ➞
Insert ➞
Tighten container ➞
Clean ➞
Coating material
drips from the
nozzle
Nozzle loose
•
Nozzle worn
•
Nozzle seal is missing or worn
•
Coating material assembly at air
•
cap, nozzle or needle
Tighten ➞
Change ➞
Insert an intact nozzle ➞
seal
Clean ➞
Atomisation too
coarse
Coating material too thick
•
Material volume too large
•
Material volume adjusting screw
turned too far to the right (+)
Nozzle contaminated
•
Air lter heavily soiled
•
Too little pressure build-up in
•
container
Amount of air too low
•
Dilute ➞
Turn material volume ➞
adjusting screw to the
left (-)
Clean ➞
Change ➞
Tighten container ➞
Increase air quantity ➞
Spray jet pulsates Coating material in container
•
running out
Air lter heavily soiled
•
Nozzle seal is missing or worn
•
Rell ➞
Change ➞
Insert an intact nozzle ➞
seal
Coating material
causes "paint tears"
Too much coating material
•
applied.
Turn material volume ➞
adjusting screw to the
left (-)
Too much fog of
coating material
(Overspray)
Distance to the object too large
•
Too much coating material
•
applied
Amount of air too high
•
Reduce distance ➞
Turn material volume ➞
adjusting screw to the
left (-)
Decrease air quantity ➞
Paint in the
ventilating hose
Diaphragm soiled
•
Diaphragm defective
•
Clean the diaphragm ➞
Replace the diaphragm ➞
