HBS ARC 800 - Page 53

53©HBS Bolzenschweiss-Systeme GmbH & Co. KG
All rights reserved – Reprinting, in whole or in part, only with the approval of the manufacturer
14 Troubleshooting
Fault Possible cause Fault localisation Fault remedy Performance
Continuously red
Display: 8 .. 2
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 welding
gun
Check resistance value at
control cable connector
(18 Ω to 22 Ω) between
Pin 1 and Pin 2*)
Replace control cable
connector, control cable
and solenoid*)
Qualied specialists
Solenoid defective Check solenoid (18 Ω to
22 Ω)*)
Replace solenoid*) Qualied specialists
Fuse F3 4 AF defective Check fuse F3 4 AF*) Replace fuse F3 4 AF*) Qualied specialists
Lifting impossible Solenoid circuit inter-
rupted
Check resistance value at
control cable plug (18 Ω to
22 Ω) between Pin 1 and
Pin 2*)
Replace solenoid or
control line*)
Qualied 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*)
Qualied specialists
Work marked with *) may only be carried out by qualied 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.