
INSTALLATION AND OPERATION
In order for the unit to function correctly, it must be installed properly. Follow the procedure given below for
correct installation:
1 - Read the safety rules given in this manual carefully.
2 - Check on receiving the unit that there are no defective parts or parts damaged during transportation.
3 - Attach air regulator as show in diagram Regulator Installation.
4 - Set your unit up in an area which is adequately ventilated and make sure that the air vents are not
obstructed.
5 - Prevent the fan from introducing dust or deposits into the machine.
6 - Connect the power supply cable to a socket located as near as possible to the work area, so that the unit
can be switched off quickly in case of emergency.
7 - Your machine has a 15 AMP plug tted, before use check that the green/yellow earth is connected to the
earth pin socket of tted plug.
8 - Make sure that the mains supply switch and any fuses have a value which is the same or 20% above the
maximum current absorbed by the unit. All fuses should be the slow-blow type.
9 - Any extensions of power supply cable should have the same cross-section as the power supply cable.
The extension leads, however , should only be used when absolutely necessary. It is important to note that
any extension of mains cables or torch cables will possibly affect the cutting performance of this cutting
equipment, due to the fact that the resistance of the cable will reduce voltage input, which is determined by
the length of the cable. The supplied length of main cables and torch cables is recommended.
10 - Fasten the earth clamp to the piece to be cut, making sure that the piece to be cut and metal bench
(if any) have been connected to earth by means of a cable with adequate cross-section. If the surface of the
piece to be cut is painted, rusty or covered with insulating material, clean the surface so that satisfactory
contact between the piece and the earth clamp can be obtained.
11 - Make sure that the torch has been assembled with the correct components and that the cutting tip is
suitable for the cutting current.
12 - Connect air to regulator and adjust regulator to deliver 4.8 bar 90 ltr/min
13 - Switch the unit on using the main switch located on the front panel.
14 - Contact the copper tip of the torch to the work piece, press the button of the torch until the
arc-starting and raise the cutting torch about 1mm above the work piece, and perform the cutting operation.
15 - Once cutting is over, release the torch button to put out the arc. A period of post-ow time 45 to 75
seconds (required for torch cooling) will follow. Do not disconnect air until this cooling period has been
completed. Failure to do this will result in torch head damage.
CAUTION:
Do not point the torch jet at foreign bodies
CAUTION:
Avoid unnecessary lighting of the pilot arc to prevent excessive consumption of the electrode and nozzle.
CAUTION:
During cutting the speed of the torch movement should be in accordance with the thickness of the piece to
be cut. Excessive speed causes a return of incandescent towards the torch which shortens the life of the parts
of the torch most subject to wear and tear.
The build-up of scale on the nozzle should be removed as soon as possible.
Instruction Manual for CUT40 (C422)