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20. Correction of Malfunctions
Problem
Problem
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
Poor covering
capacity on the wall
30
Cause
Cause
•
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. 9, 1) clogged
•
Nozzle loose
•
Nozzle worn
•
Nozzle seal is missing or worn
•
Coating material assembly at air
cap, nozzle or needle
•
Coating material too thick
•
Material volume too large
Material volume adjusting screw
turned too far to the right (+)
•
Nozzle clogged
•
Air filter heavily soiled
•
Too little pressure build-up in
container
•
Coating material in container
running out
•
Air filter heavily soiled
•
Nozzle seal is missing or worn
•
Too much coating material
applied.
•
Distance to the object too large
•
Too much coating material
applied
•
Diaphragm soiled
•
Diaphragm defective
•
Spray material is too cold
•
Highly absorbent surface or paint
with poor covering capacity
•
Distance too large
W 510
Remedy
Remedy
•
Clean
•
Clean
•
Turn to the right (+)
•
Insert
•
Tighten container
•
Clean
•
Tighten
•
Change
•
Change
•
Clean
•
Dilute
•
Turn material volume
adjusting screw to the
left (-)
•
Clean
•
Change
•
Tighten container
•
Refill
•
Change
•
Change
•
Turn material volume
adjusting screw to the
left (-)
•
Reduce distance
•
Turn material volume
adjusting screw to the
left (-)
•
Clean the diaphragm
•
Replace the diaphragm
•
The material you are
spraying should be at
room temperature
•
Cross spray (Fig. 8)
•
Closer to the object
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