Earlex HV4901 - Correction of Malfunctions

EN
24
HV4901
24. Correction of Malfunctions
Malfunction Cause Remedy
No coating
material emerges
from the nozzle
•
Nozzle clogged
•
Material volume setting turned too
far to the left (-)
•
No pressure build-up in container
•
Container empty
•
Feed tube loose
•
Feed tube clogged
•
Ventilating bore (Fig.14,A) clogged
➞ Clean
➞ Turn to the right (+)
➞ Tighten container
➞ Rell
➞ Insert
➞ Clean
➞ Clean
Coating material
drips from the
nozzle
•
Coating material assembly at air
cap, nozzle or needle
•
Nozzle loose
•
Nozzle seal worn
•
Nozzle worn
➞ Clean
➞ Union nut tighten
➞ Change
➞ Change
Atomisation too
coarse
•
Material volume too large
Material volume adjusting screw
turned too far to the right (+)
•
Nozzle contaminated
•
Viscosity of coating material too
high
•
Too little pressure build-up in
container
•
Air lter heavily soiled
•
Amount of air too low
➞ Turn material volume
adjusting screw to the
left (-)
➞ Clean
➞ Dilute further
➞ Tighten container
➞ Change
➞ Turn the air volume
control to the left (+)
Spray jet pulsates
•
Coating material in container
running out
•
Nozzle seal worn
•
Air lter heavily soiled
➞ Rell
➞ Replace
➞ Replace
Coating material
causes "paint
tears"
•
Too much coating material applied. ➞ Turn material volume
adjusting screw to the
right (-)
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 (-)
➞ Turn the air volume
control to the left (-)