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30
12 Troubleshooting
12
Troubleshooting
Danger from insufficiently qualified operating personnel
Carry out only the work described here on your stud feeder.
Repairs may only be carried out by appropriately qualified personnel.
Inform your dealer or your maintenance department.
Malfunction
Possible cause
Fault finding
Fault correction
Carried out by
VBZ is not feeding
Stud welding unit not
switched on
Check stud welding unit
Switch on stud welding
unit
Trained personnel
No primary power
Check primary power
connection, cable and
fuse*)
Change primary power
connection, cable and
fuse*)
Qualified specialists
Feed hose is bended,
welding elements can
not pass
Check feed hose
Make feed hose free of
bends
Trained personnel
Not sufficient air pres
-
sure
Check air pressure
(6 to 7 bar)
Adjust air pressure
Trained personnel
Connecting cable is not
connected to VBZ or to
stud welding unit
Check connecting cable
Plug connecting cable
into bush
Trained personnel
Check stud feeding time
on stud welding unit (may
be too short)
Reset stud feeding time Trained personnel
VBZ not switched on
Check VBZ
Switch on VBZ
Trained personnel
Slide in separator cage
is not moving
Feed hose is bent at the
connection and welding
elements are blocking
the slide
Check feed hose
Make feed hose free of
bends
Trained personnel
Welding elements get
stuck in feeding rail
Check passage between
feeding rail and stud
reparation into tube
Remove stud
Trained personnel
VBZ is not working
Defective fuse
Check fuse*)
Change fuse *)
Qualified specialists
Defective circuit board
Check circuit board*)
Change circuit board*)
Qualified specialists
Summary of Contents for VBZ-3
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