DÖRR EcoGun AS AUTO pro, Руководство по эксплуатации

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Spray pattern Fault identification
Spray jet is uneven.
Spray jet is sickle-shaped.
Fault description Cause Remedy
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
correctly.
Check control air venting.
Check operation of needle. Replace
needle, if defective, together with the
nozzle Ä 9.3.1 “Replace needle and
nozzle.”.
Nozzle soiled or defec-
tive
Clean and check the nozzle. If nozzle is
defective, replace it along with the needle
Ä 9.3.1 “Replace needle and nozzle.”.
Air leaks from the
material flow control Piston sleeve worn out Replace piston sleeve Ä 9.3.4 “Replace
piston seals.”.
Air leak from the
leakage bore O-rings of the piston
worn out Replace O-rings Ä 9.3.4 “Replace piston
seals.”.
Sealing rings worn out
Have the sealing rings replaced by Dürr
Systems.
Air leak between
piston axis and
housing Lip seal worn out
Have the lip seal replaced by Dürr Sys-
tems.
Or replace lip seal with assembly / disas-
sembly tool for lip seal ( Ä 12.2 “Tools”).
Spray jet misaligned Air cap is misaligned
Rotate air cap into the required position
Ä 4.3 “Setting the spray jet”.
Spray jet too strong in
center Too much material
Reduce material feed.
Increase spraying air pressure (A).
Material too viscous
Change material consistency.
Faults
02/2020 EcoGun AS AUTO pro - MSG00005EN 20/44