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1.
Power supply switch
2.
Gas supply connector
3.
Drain
4.
O.C (Over current) 2T and 4T Indication lamps
5.
Digital current display
6.
Current adjustment
7.
Work piece connection
8.
Two pin socket
9.
Connection to torch
10.
Pressure gauge
5.
OPERATION
WARNING! Before operating the machine ensure that you read, understand and apply Section 1 safety instructions and that you have
‰
familiarised yourself with the controls. Ensure that the machine is disconnected from the power supply before moving or changing
accessories.
5.1.
SET-UP (air supply connected in fig1.2 and regulate incoming gas).
5.1.1. Check that the earth cable is correctly clamped to the work piece or work bench.
5.1.2. Switch on the mains power supply. Switch on the machine by operating the I/O switch on the rear panel (fig.1.1).
5.1.3. Set the current regulation control (fig.2.6) to the required value.
5.1.4. Press the torch button and release to commence the flow of cooling air (post-air).
5.1.5. Allow the air flow to continue to remove any condensation from the torch. The air flow will automatically stop after approx. 5secs.
NOTE Longer than standard nozzles and electrodes are available to improve accessibility in awkward cutting positions.
5.2.
CUTTING FROM THE EDGE
5.2.1. Bring the torch nozzle toward the edge of the work piece and hold it at 3mm above the cutting line.
5.2.2. Press and hold down the torch button. After about 1/5 of a second of pre-air, the pilot arc will be generated. If the distance between the
torch nozzle and the work piece is correct, the arc will immediately jump to the work piece and the cutting process will begin.
5.2.3. Move the torch slowly and smoothly forward, on the surface of the work piece, along the cutting line.
5.2.4. Adjust the cutting speed according to the thickness of the material and the selected current.
5.2.5. Check the underside of the cut. The arc should make a 5-10° angle with the vertical in the opposite direction to the cutting direction (fig.4).
5.3.
CUTTING FROM THE CENTRE
5.3.1. Place the torch nozzle at an angle to the surface at the start-of-cut position (fig.5).
5.3.2. Initiate the pilot arc, then slowly and smoothly bring the torch head to the upright position.
5.3.3. The arc will pierce the work piece and cutting can start.
5.4.
ARC OFF
5.4.1. Release the torch button to switch off the arc. The post-air will continue to flow, cooling the nozzle.
5.4.2. Other reasons for the arc ceasing are:
a) The distance between the torch nozzle and work piece is too great.
b) You have completed a cut and have continued beyond the edge of a work piece.
c) The waste falls away from the work piece thus increasing the gap.
© Jack Sealey Limited
fig.1
fig.3
Original Language Version
7
8
PP40E.V2
Issue 2 (1,3,F)
fig.2
9
10/10/23
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