HBS CA 08 Operating Manual page 31

Fault
Welding gun does not
weld
Welding gun does not
lift, in spite of ,
and
No display
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 & Repair" in the annex to send in the stud
welding unit or stud welding gun.
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All rights reserved – Reprinting, in whole or in part, only with the approval of the manufacturer
Possible cause Fault localisation
Ground connection Check, whether ground
defective (no contact cable is connected to
signal on stud welding workpiece in a technically
unit) correct way
Check ground cable for
electrical flow *)
Stud welding unit Follow the instructions
defective of the connected stud
welding unit
No lift adjusted Check adjusted parame-
ters on welding gun
Short circuit of magne- Meassure resistance
tic circuit of the welding value at control cable
gu connector (18 Ω to 22 Ω)
between Pin 1 and
Pin 2 *)
Solenoid defective Meassure solenoid (18 Ω
to 22 Ω) *)
Magnetic circuit inter- Meassure resistance
rupted value at control cable
connector (18 Ω to 22 Ω)
between Pin 1 and
Pin 2 *)
12 Troubleshooting
Fault remedy Performance
Connect ground cable Trained personnel
In case of no flow: Qualified specialists
Replace ground
cable *)
Repair required Factory service or
authorised agencies
Change adjusted para- Trained personnel
meters
Replace control cable Qualified specialists
connector, control cable
and solenoid *)
Replace solenoid *) Qualified specialists
Replace solenoid or Qualified specialists
control cable *)
31