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Part 7580607_01
E 2018 Nordson Corporation
Troubleshooting
WARNING: Allow only qualified personnel to perform the following tasks.
Follow the safety instructions in this document and all other related
documentation.
These troubleshooting procedures cover only the most common problems.
If you cannot solve a problem with the information given here, contact your
local Nordson representative for help.
Problem Possible Cause Corrective Action
1. Good powder in the
waste container
Powder feed rate exceeds sieve
capacity
Reduce the venturi transfer-pump air
pressure. If a HDLV system, contact
your Nordson representative.
Erratic or pulsating feed rate.
Heavy surges may exceed sieve
capacity
Check the transfer-pump air supply
and pressure. Check the transfer
pumps, pickup tubes, and hoses for
blockages. Check the fluidising plates
and the powder in the colour module
hoppers for contamination.
Too many oversized particles in
reclaimed powder
Check the powder in the colour
module for contamination
Screen mesh is too fine Change to a more coarse screen
mesh. Refer to AZO E360B technical
manual for procedure.
Loose screens Remove the screen frame from the
sieve. Adjust the screen tension
according to the AZO E360B
technical manual.
Clogged screens Clean or replace the screen. Check
the powder for contamination. Add
new powder to the hopper. Too large
a ratio of reclaimed-to-new powder
can cause clogging.
Vent-assist air pressure too low, or
hose to scrap container and/or
container not air tight
Adjust the vent-assist air pressure.
Check the hose and scrap container
connections and seals.
Sieve not level, discharge end
pitched down
Level the sieve and/or the feed
hopper.
2. Powder backing up in
the accumulator
Restriction in sieve and/or powder
path causing blockage
Clean the powder path
Vent- assist air pressure too high
Adjust the vent-assist air pressure
Repair
Contact your Nordson representative for repair information.
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