THE ART OF WELDING
P6
PN-0509076 Rev. 16 55-92
BT 22
BT 24
BT 25
BT 13
Adjustment of the oscillation5. 1. 5.
To position the electrode in line with the joint use
BT 24 and BT 25 of the remote control unit. This
position is considered as the reference point for
the program. This operation is simplest for welding
without bevels. For welding with bevels and edges
it is possible to self-centre the torch. In order to do
this, position the torch between the two edges using
BT 22. Pressing BT 22 results in automatic centring
of the electrode by touching the sides. This implies
that the workpiece voltage measurement wire and
electrode must be connected.
Fig. 5.3 - Command buttons used to adjust the
oscillation
Fig. 5.4 - Push button for gas fl ow test - cooling
system test - and manual start of the
coolant pump
Adjustment of the gas fl ow5. 1. 6.
The gas fl ow is adjusted with a fl ow meter installed
on the gas bottle or the supply network. Pressing
BT 13 starts the gas fl ow manually.
Switching on the coolant pump 5. 1. 7.
manually
After changing a welding head, and particularly if
an extension cable is used, the coolant pipes may
be empty. Therefore a fault in the cooling system
may be detected when starting a cycle again. With
the button BT 13 the coolant pump can be switched
on to replenish the system before starting the next
cycle.
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