28
5.2
Troubleshooting
Fault
Possible cause
Remedy
See Section
Controller cannot be switched
on or off
Micro switch at trigger
continuously activated or
defective
Eliminate deadlock at micro
switch (sheet metal tongue)
or replace micro switch
Nozzle goes on dripping
Nozzle valve partially ob-
structed or damaged
Drain the device. Actuate
the trigger for approx. 5 s to
clear the nozzle.
Clean or replace nozzle end
6.2
Too little or no melt is dischar-
ged
Operating pressure too low Increase operating pressure
(max. 6 bar)
4.3
Compressed-air supply
disconnected
Check compressed-air
supply
Nozzle system clogged
Clean or replace cone noz-
zle and if necessary nozzle
end
6.2, 6.3
Stock temperature too low
Raise temperature
3.3.1
Compressed air escapes from
closure cap (11)
Insufficient cover pressure Increase cover pressure
6.4
Gasket dirty
Clean sealing faces
Compressed air escapes from
service unit
Connections not airtight
Tighten or replace gaskets
Sight glass of water sepa-
rator (2) cracked
Replace sight glass
Nozzle system clogged or
damaged
Clean or replace swirl noz-
zle, pressure spring and ball
6.3.4
What, if…
GB
