Index revision : B - September 2020
37
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7. Troubleshootings
Symptoms
Probable causes
Remedies
The powder
does not
come out
Incorrect installation
Check that the spray gun installa-
tion and connections comply with
the instructions (
).
The projector is incorrectly set
Follow the instructions for making
adjustments.
Insufficient air flow rate supplied by
the compressed air circuit.
Check the circuit.
The powder-carrying hose is
obstructed
Clean the powder-carrying hose
using compressed air.
Powder does
not adhere to
the part to be
painted
The part is not correctly grounded.
Ensure that the electrical resistance
of the parts in relation to the
ground sys-tem is less than 1MW.
The electrode is covered in hard-
ened paint or soiling.
Switch off the high-voltage power
sup-ply, then clean the electrode
and ensure that the current deliv-
ered is less than 30
μ
A for flat spray
nozzles.
The voltage is not sufficiently high.
Increase the voltage, but ensure
that the current does not exceed
30
μ
A for flat spray nozzles.
Abnormally
high current
con-sumption
Ground wire too close to the pro-
jector electrode.
Move the ground wire further
away.
