Malfunction Cause Remedy
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
➞ Rell
➞ Replace
➞ Change
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 (-)
Width of paint
spray cannot be
adjusted
•
Adjustment ring is not connected
to the peg on the air cap
•
Air screen is clogged up
➞ Connect adjustment
ring and peg
➞ Disassemble and clean
Paint in the
ventilating hose
•
Diaphragm soiled
•
Diaphragm defective
➞ Clean the diaphragm
➞ Replace the diaphragm
Poor covering
capacity on the
wall
•
Spray material is too cold
•
Highly absorbent surface or paint
with poor covering capacity
•
Distance too large
➞ The material you are
spraying should be at
room temperature
➞ Cross spray (Fig. 13)
➞ Closer to the object
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