HBS 94-31-412C, Руководство по эксплуатации, Страница: 48 / 62

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48
12 Troubleshooting
12
Troubleshooting
Danger from insufficiently qualified operating personnel
‹
Carry out only the work described here on your stud welding unit or stud
welding head.
‹
Repairs may only be carried out by appropriately qualified personnel.
‹
Inform your dealer or your maintenance department.
Fault Possible cause Fault localisation Fault remedy Performance
Welding elements not
firmly attached
Wrong welding parame-
ters selected
Check adjustments on
stud welding unit
Change adjusted para-
meters
Trained personnel
Check stroke of automatic
welding head
Change adjusted para-
meters
Trained personnel
Plunging speed of wel-
ding element too low
Check welding piston and
linear bearing for ease of
movement *)
Clean or replace *) Qualified specialists
Scorching at welded
element
Chuck is worn Check chuck for possible
wear
Replace chuck Trained personnel
Automatic welding head
does not weld
Control cable defective
(with present contact
signal on stud welding
unit)
Check contol cable at
socket (Pin 3 and 4) of
the control cable socket
with pressed automatic
welding head trigger *)
In case of no signal:
Replace control cable *)
Qualified specialists
Trigger defective (with
present contact signal
on stud welding unit)
Check contol cable at
socket (Pin 3/4) of the
control cable socket with
pressed automatic wel-
ding head trigger *)
In case of no signal:
Replace micro switch *)
Qualified 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 current
cable
Trained personnel
Check welding current
cable for electrical flow *)
In case of no flow:
Replace welding current
cable and/or connecting
cable *)
Qualified specialists