Lincoln Electric ESSENTIAL OXYCUTTING, Safety Instruction For Use And Maintenance

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E - OPERATOR MANUAL
8695 4985 / D
E-22
ESSENTIAL OXYCUTTING
2 - ADJUSTMENTS
2.1 PROCESS PARAMETER ADJUSTMENT
Process parameters can be adjusted from the UI. See the documentation 8695 4944, in the sections relating to
Essential oxycutting.
The torches have valves for adjusting the heating flame. See the torch documentation.
The torches are adjusted as follows:
- Open the heating O2 valve fully
- Open the Fuel open valve to the mark indicated on HPC with OXYCUT MACH (generally mark I) or
approximately a quarter turn with MACH HP
- After the flame is ignited, adjust only the fuel valve to obtain a 'neutral' flame.
The part program particularities (size and location of striking, cutting quality etc.) also influence cutting quality. The
post-processor must comply with the recommendations of Air Liquide.
2.2 TOOL HOLDER HEIGHT
See specific documentation of tool holder
3 - GAS SUPPLY CHANGE
When the gas supply is changed (cylinder change, for example), we recommend the following:
- Shut the cylinder to change
- For the heating oxygen and fuel, make the torch operate for heating till the low-pressure alarm appears
- For cutting oxygen, use the manual cutting gas test control till the pressure in the pipe is low.
- Press the emergency stop button
- Change the cylinder in accordance with the supplier's recommendations.
- Check that there is no dust or pollution, particularly on the oxygen line (risk of ignition)
- Check that there is no leak after each cylinder change.