Adjusting The Distance Between Electrodes; Preparation Of The Welding Area - Elektron MULTISPOT MTX 4900 Operating Manual

5.1.3.4

Adjusting the distance between electrodes

: Adjusting the distance be-
Fig. 11
tween electrodes
Aligning electrodes
: "Electrode must be in true
Fig. 12
alignment"
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
Make sure the distance between the electrodes is
6 to 8 mm.
Carry out the first welds, and then check the distance
again. Re-adjust, if necessary.
Use an Allen key SW5 as gauge in between the tips:
Electrode tip Allen key
Be sure to look from different angles. Electrodes must
align no matter how you look.
MTX 4900
Operation
Electrode tip
19