W 690 Flexio
26. Correction of Malfunctions
Malfunction
No coating
material emerges
from the nozzle
Coating material
drips from the
nozzle
Atomisation too
coarse
Spray jet pulsates
Coating material
causes "paint
tears"
Too much fog of
coating material
(Overspray)
Paint in the
ventilating hose
Cause
•
Nozzle clogged
•
Material quantity too small
•
No pressure build-up in container
•
Container empty
•
Feed tube loose
•
Feed tube clogged
•
Ventilating bore (Fig.15, A) clogged
•
Coating material assembly at air
cap, nozzle or needle
•
Nozzle loose
•
Nozzle seal worn
•
Nozzle worn
•
Material volume too large
•
Nozzle contaminated
•
Air cap assembled incorrectly
•
Viscosity of coating material too
high
•
Too little pressure build-up in
container
•
Air filter heavily soiled
•
Amount of air too low
•
Coating material in container
running out
•
Nozzle seal worn
•
Air filter heavily soiled
•
Too much coating material applied. ➞ Reduce the material
•
Distance to the object too large
•
Too much coating material applied
•
Amount of air too high
•
Diaphragm soiled
•
Diaphragm defective
Remedy
➞ Clean
➞ Increase the quantity
of material
➞ Tighten container
➞ Refill
➞ Insert
➞ Clean
➞ Clean
➞ Clean
➞ Union nut tighten
➞ Change
➞ Change
➞ Reduce the material
volume
➞ Clean
➞ Snap air cap properly
into place (fig. 22, 2)
➞ Dilute further
➞ Tighten container
➞ Change
➞ Turn the air volume
control to the left (+)
➞ Refill
➞ Replace
➞ Change
volume
➞ Reduce distance
➞ Reduce the material
volume
➞ Turn the air volume
control to the left (-)
➞ Clean the diaphragm
➞ Replace the diaphragm
GB
35