HBS CA 08 - Page 31

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12 Troubleshooting
Fault Possible cause Fault localisation Fault remedy Performance
Welding gun does not
weld
Ground connection
defective (no contact
signal on stud welding
unit)
Check, whether ground
cable is connected to
workpiece in a technically
correct way
Connect ground cable Trained personnel
Check ground cable for
electrical ow *)
In case of no ow:
Replace ground
cable *)
Qualied specialists
Stud welding unit
defective
Follow the instructions
of the connected stud
welding unit
Repair required Factory service or
authorised agencies
Welding gun does not
lift, in spite of ,
and
No lift adjusted Check adjusted parame-
ters on welding gun
Change adjusted para-
meters
Trained personnel
Short circuit of magne-
tic circuit of the welding
gu
Meassure 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 Meassure solenoid (18 Ω
to 22 Ω) *)
Replace solenoid *) Qualied specialists
No display
Magnetic circuit inter-
rupted
Meassure resistance
value at control cable
connector (18 Ω to 22 Ω)
between Pin 1 and
Pin 2 *)
Replace solenoid or
control cable *)
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 & Repair“ in the annex to send in the stud
welding unit or stud welding gun.