DÖRR EcoGun 116, Operation Manual

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Fault description Cause Remedy
Spray jet is distorted. Air cap is misaligned. Rotate air cap into the required posi-
tion. Ä 6.5 “Alignment of the air cap”
Spray jet is bent or tapered. Bores in air cap are
soiled.
Clean and check air cap. Replace air
cap if defective Ä 7.2 “Cleaning”.
Nozzle seat soiled. Cleaning the nozzle seat Ä 7.2
“Cleaning”.
Nozzle soiled or
defective. Clean and check the nozzle. If nozzle
is defective, replace it along with the
needle Ä 8.3.1 “Replace needle and
nozzle.”.
Spray jet is too thick in the
middle. Material too viscous.
Change material consistency.
Horn air pressure too
low
Decrease the horn air pressure via the
flat jet control.
Air pressure too low
Increase the air pressure via the total
air control.
Spray jet is split. Material too thin.
Change material consistency.
Horn air pressure too
high
Decrease the horn air pressure via the
flat jet control.
Air pressure too high
Decrease the air pressure via the total
air control.
Spray jet is uneven. The
spray pattern quality is bad. Nozzle soiled or
defective.
Clean and check the nozzle. If nozzle
is defective, replace it along with the
needle Ä 8.3.1 “Replace needle and
nozzle.”.
Cap nut or nozzle is
not properly tightened. Tighten cap nut and nozzle
Ä “Cleaning the air cap und nozzle”.
Needle gland worn out Replace needle gland
Ä 8.3.3
“Replace needle gland”.
Faults
05/2018 EcoGun 116 - MSG00017EN 20/44