18
Hot melt application head EP 30
P/N 397191B
E
2005 Nordson Corporation
EP 30
Troubleshooting Table
(contd.)
Problem
Possible cause
Corrective action
Refer to
Application head
does not reach the
Heater cartridge(s) in
application head defective
Replace
−
−
set temperature
Ambient temperature too low
Raise ambient temperature.
−
−
Solenoid valves
do not switch
Control unit not switched on
Switch on
Separate
manual
Control Unit
Connecting plug not plugged in
or too loose
Check that plug connections
are tight
Page 6
Application
pattern not exact
Temperature not set precisely
on melter
Correct setting
Separate
manual
Melter
Temperature of application
head not set precisely
Correct setting
Page 9
Adhesive quantity/pressure not
set precisely
Correct setting
Page 10
Distance between nozzle and
substrate incorrect
Correct distance
−
−
Control unit for solenoid valves
not programmed correctly
Correct programming
Separate
manual
Control Unit
Nozzle polluted on outside
Clean
Page 14
Nozzle polluted on inside
Clean
Page 14
Nozzle damaged
Replace nozzle
−
−
Application quantity and
substrate processing speed not
attuned to one another
Check settings; change so as to
be attuned to one another if
necessary
−
−
Adhesive unsuitable
Ask manufacturer
Data sheet
from
adhesive
manufacturer
