Initial Operation / Start-Up Procedure; Cutting - Jackle Plasma 40i IP23 Betriebsanleitung

20. Initial operation / Start-up procedure

1 Installation of the cutting unit
When putting the unit in place, please make sure there is sufficient space for inlet and outlet cooling air so that
the rated duty cycle will be attained.
The unit should neither be exposed to moisture not to the plasma arc or the spark ray caused by grinding work.
2 Start-up procedure
- Switch on the machine with the main switch on the back.
- Now the unit makes a self-test for about 10 seconds, wherein for a short time the gas valve is opened,
and the cooling gas flows out of the torch.
NOTE: During this time do not press the torch trigger or start cutting tests!!
- Now press the torch trigger, it is carried out again a torch test for about 2 seconds.
- If the pilot arc is ignited, the machine is ready for cutting.
- This process will be performed at every switch on of the machine.
3.. The cutting machine is now ready and can be used.

21. Cutting

1 Pilot arc ignition
Bring the nozzle of the cutting torch to the starting point of the cut to be executed.
Press torch trigger. After a short pre gas flow time (0,5s) the pilot arc is ignited, and at the instant of the pilot arc
impacting the work piece, the cutting arc is formed.
In the event of a cutting arc failure, the pilot arc is switched off after approx. 4 sec.
Repeated ignition of the pilot arc without actually initiating a cutting process should be avoided. An
overload of the pilot arc resistance might occur, resulting in unnecessary wear of the torch parts.
2 Cutting
In a hand-operated cutting process, move the torch with light contact over the work piece at a constant speed.
For achieving an optimum cut, make it a point to keep the right cutting speed corresponding with material
thickness. If the cutting speed is too low, a blunt cutting edge will be the result because of the unduly high
thermal input. Optimum cutting speed becomes apparent when the cutting jet slightly slopes backwards.
At the instant of releasing the torch trigger, the plasma jet is extinguished and the current source cut off. The gas
is post-flowing for approx. 1 minute to cool the torch.
Overshooting the work piece at pressed torch trigger will initiate the same procedure.
The machine must not be switched off during gas post-flow. Danger of torch damage by
overheating!
In hand-operated hole-piercing, the hand cutter must be held in an inclined position and then slowly brought to a
vertical position to avoid the formation of spatter.
Operating manual
Plasma 40i
Page 19