NOTICE!
Property damage due to improper
replacement of needle and nozzle
Replacing only the needle or only the
nozzle could damage spray gun compo-
nents. This can compromise the tightness
of the spray gun. The spray pattern deteri-
orates.
– Observe order of replacement steps
(needle – nozzle).
– Observe order of assembly steps
(nozzle – needle).
– Always replace nozzle and needle at
the same time.
NOTICE!
Property damage due to improper han-
dling
Mechanical load can damage needle and
nozzle.
– Handle with care during installation
and dismantling.
– Do not subject the needle to any
mechanical pressure.
– Avoid collisions of components to be
assembled and disassembled with the
needle.
– Do not excessively tighten compo-
nents.
NOTICE!
Improper setting causes damage
The delay time is factory-set. Setting a
wrong delay time can damage the nozzle
and the needle.
– You should only change the delay time
upon inserting a new needle or in case
there are problems with the spray pat-
tern.
– If in doubt, contact Dürr Systems
9.2
Defects table
Faults
Fault description
Cause
Correction
No material
Line pinched or broken
Check the line.
Needle does not open.
Check Control air.
Material leaking when
needle is closed.
Needle does not close cor-
rectly.
Check control air venting.
Check operation of needle. Replace
needle, if defective, together with the
nozzle
Faults
02/2020
EcoGun AS AUTO pro HD - MSG00009EN
19/44
