Commissioning 5
Issue EN 2022/05 PUK 6 Operating manual
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The clamping nut inside the handpiece ensures the tungsten electrode fit
snugly in the collet by hand-tightening.
The collet chuck and clamping nut in
the handpiece hold the electrode firmly in the handpiece.
The handpiece housing is used to attach, grip or guide the handpiece.
5.5
Adjusting the electrode length
Only thoriumoxide-free original electrodes may be used as electrodes.
When changing or inserting a new electrode, the following steps must be
carried out:
1)
Wait until the electrode has cooled down
2)
Gently rotate the argon nozzle back and forth while pulling it off the
handpiece. The argon nozzle is plugged into place, not screwed on.
3)
Loosen the clamping nut counter-clockwise and remove the used tung-
sten electrode if necessary.
4)
If a different electrode diameter is to be used, the collet chuck might
also have to be changed accordingly. To do this, completely loosen and
remove the clamping nut and then pull the collet out and insert a match-
ing collet. Screw the clamping nut back on.
Insert the new tungsten electrode into the collet and adjust to the
correct length. If you have a Lampert welding microscope, you can
measure the electrode length on the handpiece holding arm. To do
this, insert the electrode into the milling on the right or left as far as
it will go. The clamping nut must rest against the outer edge of the
holding arm. Now hand-tighten the nut and fit the argon nozzle.
(See Fig. 5.2)
If you do not have a Lampert welding microscope, clamp the tung-
sten electrode in the handpiece so that it protrudes approx. 4 - 6
mm beyond the nozzle. (See Fig. 5.3)
Welding can now be resumed with the new electrode.
Handpiece housing
