Troubleshooting - HBS A 22 Operating Manual

12

Troubleshooting

Danger from insufficiently qualified operating personnel
‹ Carry out only the work described here on your stud welding unit or stud
welding gun.
‹ Repairs may only be carried out by appropriately qualified personnel.
‹ Inform your dealer or your maintenance department.
Fault
Welding elements not
firmly attached
Burning marks at the
welding element
Welding gun does not
weld
©HBS Bolzenschweiss-Systeme GmbH & Co. KG
All rights reserved – Reprinting, in whole or in part, only with the approval of the manufacturer
Possible cause Fault localisation
Wrong welding parame- Check adjusted parame-
ters selected ters on stud welding unit
Check lift of welding gun
Check lift of welding gun
Insertion speed of wel- Check welding piston and
ding element too low linear bearing for ease of
movement *)
Chuck defective Check chuck for possible
defects
Lamellas of chuck are Check lamellas of chuck
not pretensioned
Wrong welding parame- Check lift on the stud
ters selected welding gun
Check protrusion (inser-
tion depth) on the stud
welding gun
Control cable defec- Check control cable for
tive (no trigger signal electrical flow at control
available on stud cable sleeve (Pin 3 and 4)
welding unit) with pressed welding gun
trigger *)
Micro switch defecti- Check control cable for
ve (no trigger signal electrical flow at control
available at stud wel- cable sleeve (Pin 3 and 4)
ding unit) with pressed welding gun
trigger *)
Welding current cable Check, whether welding
defective (no contact current cable is connected
signal on stud welding to stud welding unit in a
unit) technically correct way
Check welding current
cable for electrical flow *)
12 Troubleshooting
Fault remedy Performance
Change adjusted para- Trained personnel
meters
Change adjusted para- Trained personnel
meters
Change adjusted para- Trained personnel
meters
Clean or replace *) Qualified specialists
Replace chuck Trained personnel
Try to bend lamellas Trained personnel
if possible, otherwise
replace chuck
Change adjusted para- Trained personnel
meters
Change adjusted para- Trained personnel
meters
In case of no signal: Qualified specialists
Replace control cable *)
In case of no signal: Qualified specialists
Replace micro switch *)
Connect welding cur- Trained personnel
rent cable
In case of no flow : Qualified specialists
Replace welding
current cable and/or
connecting cable *)
33