MTC 6000
Operation
19
5.1.3.3 Aligning the electrodes with one another
Fig.8: "The electrodes must
be aligned"
Ensure that the electrodes are correctly aligned in all direc-
tions.
5.2
Preparation of the welding area
The plates must be ground down to the bare metal at the contact point of the spot electrode
with the plate.
Take care not to damage galvanised surfaces. In the case of insulating intermediate layers
such as spot welding primer, electrical contact (auxiliary connection) first has to be made us-
ing a vice-grip wrench. Then set the first welding point directly alongside this contact.
5.3
Welding with the spot welding pliers
Warning:
Electromagnetic fields
!
Wear protective goggles and protective gloves!
The electrodes get hot!
Flying sparks!
−
Turn on the machine at the mains switch (see operating manual
of the power pack)
−
Connect the machine to the compressed air grid.
−
Important: At the end of the welding operation, allow the coolant
pump to run for a few more minutes to prevent any build-up of
heat.
i
Ensure an adequate supply of compressed air, working pressure
min. 6 bar!
Working pressure is 8 bar! For the MTC 6000 pliers the value
should be 6 bar / 90 psi.
Insufficient pressure results in extreme weld spattering and the
weld points can burn through.
