36
Member of Exel group
DRT7142
B - 2023/06
6. Trouble shootings
Symptoms
Probable causes
Remedies
Insufficient suction
air flow
Wrong position of the suction knife valve
Check and adjust the position of the suction
knife valve
Incorrect operation of the ventilation unit
Refer to the user manual of the filter unit
The projector does
not project powder
Empty powder tank
Fill the powder tank.
Insufficient injection air flow rate
Check the operation of the powder level sensors
and supply powder.
Insufficient air flow supplied by the compressed
air network
Check the compressed air supply from the
Inocenter
.
The powder transport hose is clogged or bent
Clean the powder transport hose with com-
pressed air.
The powder pump is not correctly connected on
its support
Replace the powder pump by pushing it fully on
its support.
Insufficient powder
comes out
The powder pump ejector is worn.
Replace the ejector.
The powder transport hose is clogged or bent
Clean the powder transport hose with com-
pressed air.
The powder transport hose is not suitable.
Increase the diameter and reduce the length of
the powder transport hose.
Dilution air flow rate is too high
Decrease the dilution air flow rate.
The powder spray is
irregular
Worn parts
Change the injector and ejector of the powder
pump
Fluidization is not sufficient or too strong
Adjust the fluidization pressure to obtain a
homogeneous powder bed.
