89
EN
Establishing a
ground (earth)
connection
Plug the grounding (earthing) cable
into the (-) current socket and twist to
fasten it
Use the other end of the grounding
(earthing) cable to establish a connec-
tion to the workpiece
Connecting the
welding torch
Welding torch and torch control connections on the VR
4000
Check that the torch is correctly and
completely tooled up. Insert it - infeed
tube first - into the torch connection on
the wire-feed unit
Tighten the union nut by hand to fix the
torch in place
Plug the control plug of the welding
torch into the torch control connection
and latch it in place
Other tasks Carry out the following steps in accordance with the wire-feed unit operating instructions:
Insert the feed rollers in the wire-feed unit
Insert the wirespool or basket-type spool with adapter in the wire-feed unit
Feed in the wire electrode
Set the contact pressure
Adjust the brake
1
NOTE! When altering the length
and/or cross-section of the weld-
ing torch hosepack, measure the
welding circuit resistance r and the
welding circuit inductivity L (see
"Further settings").
1
2
3
1
2
4
5
To Next Page
Loading...