HBS 93-20-290, Руководство по эксплуатации, Страница: 36 / 66

36 A 22 Order No. BA 93-20-290 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 charging
voltage on pow er unit Change adjusted
parameters Instructed personnel
Check spring force of
w elding gun Change adjusted
parameters Instructed personnel
Plunging speed of
w elding element too low Check w elding piston
and linear bearing
that they are smooth
running *) Clean or replace *) Qualified personnel
Check damper
adjustment Replace damper Instructed personnel
Scorchings at
w elded element Chuck is w orn Check chuck for
possible w ear Replace chuck Instructed personnel
Welding gun does
not w eld Control cable defective
(w ith present contact
signal on pow er unit) Check control cable
for electrical flow at
socket (Pin 3 and 4)
of the control cable
socket w ith pressed
gun trigger *)
In case of no flow :
Replace control cable *) Qualified personnel
Micro sw itch defective
(w ith present contact
signal on pow er unit) Check micro sw itch
w ith pressed w elding
gun trigger for
electrical flow *)
In case of no flow :
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 current cable
defective (no contact
signal on pow er unit)
Check, w hether
w elding current cable
is connected to
pow er unit
Connect w elding current
cable Instructed personnel
Check w elding
current cable for
electrical flow *)
In case of no flow :
Replace w elding current
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
Actions marked with *) must only be carried out by qualified
electricians!
If none of the actions is successful, please contact our service
department.