Gas Backflowing - Nippon Gases S-4 B Instrucciones De Manejo Y Seguridad

3.6. Do not use oxygen or fuel gases to clean parts with blowing system or to blow on
human body.
3.7.
Do not rub cutting nozzles on metallic parts or abrasive material to clean them; use
special accessory (broach) or rub on wood.

4. GAS BACKFLOWING

Immediately react as explained hereafter:
4.1. Close both valves (first, fuel gas & then, oxygen) on the shank.
4.2. If the torch is hot, wait till temperature has reduced.
4.3. Check tightness on accessories, nozzles & flexible hoses.
4.4. Suppress obstructions on tips, nozzles & injector.
4.5. Check that the non return valve is intact.
4.6. Check pressures & adjust if necessary.
4.7. If flame has come to the torch, follow instructions for gas control.
WARNING: All sentences showing with this symbol
instructions.
S-4 B WELDING TORCH
correspond to special safety
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