Plasma CUTTER 150
Operating Manual
Page 9
Separate connection (inside the unit):
Open the flap in the right side.
Insert the torch connections trough the opening in the front panel into the connection box
and fasten the hose at the threaded nipples G 1/4 and G1/8. Plug the control cable with
blade terminals into the mounted flat blade socket as you like.
Close the right side flap.
6.5 Connection to workpiece
Connect workpiece with workpiece cable to corresponding socket. Pinch workpiece termi-
nal to workpiece, choosing an appropriate spot without paint or rust for good conductivity.
7. Preparations for cutting
7.1 Equipping the torch
Select the correct plasma nozzle according to the table below. If the torch is fitted with an
oversized plasma nozzle, the performance and cutting quality will be impaired. An under-
sized tip bore will overload and destroy the plasma nozzle.
cutting current
75A
150A
plasma nozzle
∅
1,2 - 1,5
∅
1,5 - 1,8
Material thickness
2 – 15mm
10 -35mm
When replacing a worn part, check for tight fit.
The plasma nozzle and the electrode are wearing parts. A plasma nozzle with a
gravely burnt bore and an electrode exhibiting a deep penetration crater will
degrade the ignition characteristics and thus the cutting quality.
The parts need to be exchanged.
7.2 Adjusting the cutting current
Switch the weld grade switch to 75A or 150A according to the desired cutting power.
7.3 Adjusting the compressed air
The pressure reducer is already factory-alined. If another working pressure is desired it
may be adjusted as follows:
Pull up the adjusting knob of the pressure reducer in order to free it. Adjust the working
pressure according to manufacturer's instructions with flowing air. A too highly adjusted
working pressure may deteriorate the striking characteristics.
plasma gas:
5,5 bar
If the prescribed working pressure cannot be achieved in spite of a sufficient supply
pressure, the reason may be that the filter elements are too soiled. In this case the filter
elements must be exchanged.
