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58
14 Troubleshooting
Fault
Possible cause
Fault localisation
Fault remedy
Performance
Continuously red
Display: 8888
Welding sequence too
fast
Stud welding unit resets
automatically
Let switched on stud
welding unit cool down
Trained personnel
Gun does not lift, in
spite of
and
No lift adjusted
Check settings of welding
gun
Modify set parameters
Trained personnel
Short circuit of solenoid
circuit of the gun
Check resistance value
at control cable connec-
tor (18 Ω to 22 Ω) bet
-
ween Pin 1 and Pin 2*)
Replace control cable
connector, control cable
and solenoid*)
Qualified specialists
Solenoid defective
Check solenoid (18 Ω to
22 Ω)*)
Replace solenoid*)
Qualified specialists
Fuse F3 4 AF defective Check fuse F3 4 AF*)
Replace fuse F3 4 AF*)
Qualified specialists
Lifting impossible
Solenoid circuit inter-
rupted
Check resistance value
at control cable connec-
tor (18 Ω to 22 Ω) bet
-
ween Pin 1 and Pin 2*)
Replace solenoid or
control cable*)
Qualified specialists
No shielding gas
Shielding gas not
connected
Check shielding gas
connection
Connect shielding gas
Trained personnel
Shielding gas control
not enabled
Check gas control for
activity
Switch on shielding gas
control
Trained personnel
Shielding gas valve
defective
Check shielding gas
valve*)
Replace shielding gas
valve*)
Qualified specialists
Work marked with *) may only be carried out by qualified electricians!
Please contact our Service department if none of the measures described
remedies the situation.
Please use the form „Service & Support“ in the annex to send in the stud
welding unit.
Summary of Contents for IT 2002
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