
36
A 12 Order No. BA 93-20-270 Issue 01.03.08
5.8
Malfunctions and Corrective Actions
Malfunction
Possible cause
Fault finding
Corrective action
Carried out by
Welding elements
not firmly attached
Wrong w elding
parameters selected
Check the adjusted
w elding time and/or
w elding current on the
pow er unit
Change adjusted
parameters
Instructed personnel
Check spring force
and
lift of w elding gun
Change adjusted
parameters
Instructed personnel
Plunging speed of
w elding element too low
Check w elding piston
and linear bearing for
dirt and dust
Clean
Qualified personnel
Scorchings at
w elded element
Chuck is w orn
Check chuck for
possible w ear
Replace chuck
Instructed personnel
Lamellas of chuck are not
pre-tensioned
Try to bend lamellas if
possible
Replace o-rings
Instructed personnel
Welding cable defective
(no contact signal on
pow er unit)
Check control cable
for electrical flow at
control cable sleeve
(Pin 3/4) w ith pressed
w elding gun trigger
In case of no signal:
Replace control cable
Qualified personnel
Welding gun trigger
defective (no trigger
signal available at pow er
unit)
Check control cable
for electrical flow at
control cable sleeve
(Pin 3/4) w ith pressed
w elding gun trigger
In case of no signal:
Replace
micro sw itch
Qualified personnel
Ground connection
defective (no contact
signal on pow er unit)
Check, w hether
ground cable is
connected to
w orkpiece
Connect ground
cable
Instructed personnel
Check ground cable
for electrical flow
In case of no flow :
Replace ground
cable
Instructed personnel
Welding cable defective
(no contact signal on
pow er unit)
Check, w hether
w elding cable is
connected to pow er
unit
Connect w elding
cable
Instructed personnel
Check w elding cable
for electrical flow *)
In case of no flow :
Replace w elding
cable and/or
connection cable
Qualified personnel
Pow er unit defective
Follow the instructions
of the connected
pow er unit
Repair required
Factory service or authorized
agencies
Welding gun does
not w eld
Actions marked with *) must only be carried out by qualified
electricians!
If none of the actions is successful, please contact our service
department.
5 Stud Welding Procedure
5.8 Malfunctions and Corrective Actions
Содержание 93-20-270
Страница 1: ...A 12 Welding Gun 93 20 270 Operating Manual ...
Страница 45: ...A 12 Order No BA 93 20 270 Issue 01 03 08 45 Welding gun type A 12 93 20 270 ...
Страница 47: ...A 12 Order No BA 93 20 270 Issue 01 03 08 47 Shielding gas tripod complete A 12 93 40 021 ...
Страница 49: ...A 12 Order No BA 93 20 270 Issue 01 03 08 49 Ceramic tripod complete A 12 93 40 022 ...
Страница 61: ...A 12 Order No BA 93 20 270 Issue 01 03 08 61 Service Support ...
Страница 65: ......