HBS CA 08 - Troubleshooting

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12 Troubleshooting
12 Troubleshooting
Danger from insufciently qualied 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 qualied personnel.
 Inform your dealer or your maintenance department.
Fault Possible cause Fault localisation Fault remedy Performance
Welding elements not
rmly attached
Wrong welding parame-
ters selected
Check adjusted parame-
ters on stud welding unit
Change adjusted para-
meters
Trained personnel
Check spring force of
welding gun
Change adjusted para-
meters
Trained personnel
Check lift of welding gun Change adjusted para-
meters
Trained personnel
Insertion speed of wel-
ding element too low
Check welding piston and
linear bearing for ease of
movement *)
Clean or replace *) Qualied specialists
Burning marks at the
welding element
Chuck defective Check chuck for possible
defects
Replace chuck Trained personnel
Lamellas of chuck are
not pretensioned
O-rings existing?
Check o-rings for possible
defects
Replace o-rings Trained personnel
Welding gun does not
weld
Control cable defective
(with present contact
signal on stud welding
unit)
Check control cable for
electrical ow at control
cable sleeve (Pin 3 and 4)
with pressed welding gun
trigger *)
In case of no ow:
Replace control cable *)
Qualied specialists
Micro switch defective
(with present contact
signal on stud welding
unit)
Check micro switch
for electrical ow with
pressed welding gun
trigger *)
In case of no ow:
Replace micro switch *)
Qualied specialists
Welding current cable
defective (no contact
signal on stud welding
unit)
Check, whether welding
current cable is connected
to stud welding unit in a
technically correct way
Connect welding cur-
rent cable
Trained personnel
Check welding current
cable for electrical ow *)
In case of no ow :
Replace welding
current cable and/or
connecting cable *)
Qualied specialists