8
4. Torch connection
The manual welding torches PT 75 and PT-150 as well as the machine torches PT-8 and PT 300 can be
connected with the central connector B easily and without tools. Make sure, that the water in- and outlet
hoses are connected to the corresponding colour coded quick connections.
At socket A the control plug is connected, when manual torches are fitted, whereas a foot switch has to be
fitted to this socket, when machine torches are used.
The pilot circuit is connected to the torch via socket C.
5. Pilot arc current adjustment
The PLW 402 pilot arc current is factory set for PT-300 and PT-8 to 10 A. If PT-75 or PT-150 resp. PTM-150
are used, pilot current must be reduced to 5A. This is performed by eliminating jumper at resistor R105.
The PLW 202 pilot arc current is factory set to 5A and can be increased to 10A by connecting jumper at
resistor R105.
Disconnect machine from mains before opening the machine!
6. Connection of work return lead and electrode holder lead
a) The work return lead is connected to socket H marked with symbol work clamp.
b) When MMA-welding the electrode holder has to be connected either to plus (+) or minus (-) at socket
H depending on the kind of electrode to be welded.
7. Connection of remote controls
At the 5-pole socket G the following remote controls may be connected:
a) Foot remote control FC 4
b) Manual remote control
c) Pulse unit
Article numbers see accessories
Installation
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