The document describes the components and setup of oxyacetylene cutting equipment. It lists the key parts which include regulators, gauges, torch assembly and cutting attachment. It provides steps for safely setting up the equipment, including connecting hoses and cylinders, checking for leaks, and adjusting pressures. It also lists personal protective equipment requirements and flame types for different jobs.

5. Components of
Oxyacetylene
Cutting Equipment

6. Parts of the Basic Oxyacetylene Outfit

7. Regulators
Oxygen Working
Pressure Gauge
Acetylene Working
Pressure Gauge

8. Mixing Chamber
Needle
Valves
Oxy-Acetylene Torch Assembly

9. Cutting Attachment
Cutting
Oxygen Valve
Lever
Needle Valve

10. Oxy-Acetylene Welding Tips

11. Things to Consider

12. • Wear appropriate PPE for the job.

13. • Place the oxyacetylene cylinder away
from open flame.

14. • Always check for gas leaks before using
the oxyacetylene cutting equipment

15. SETTING UP OXYACETYLENE
CUTTING EQUIPMENT

16. 1. Fasten oxygen and acetylene cylinders in an upright position.

17. 2. Clean the valve outlet of accumulated dust or dirt.

18. 3. Connect the oxygen and acetylene regulators to their
cylinders.

19. 4. Tighten the nuts of the regulator connections with a wrench.

20. 5. Close both oxygen and acetylene regulators by rotating
adjusting screw to the left until it turns freely.

21. Note: Use a hose and hose connections specific to welding and
cutting.

22. Note: Do not use any oil or grease on the hoses.

23. 6. Attach the oxygen hose to the oxygen regulator and to the
torch.

24. 7. Connect the acetylene hose to the acetylene regulator and to
the torch.

25. 7. Connect the acetylene hose to the acetylene regulator and to
the torch.

26. 8. Tighten the hose connections with a wrench.

27. 9. Close both torch needle valves.
CLOSE!
CLOSE!

28. 10. Open the oxygen and the acetylene cylinder valves very
slowly.

29. Note: Leave the wrench on the acetylene valve while it is open.

30. 11. Open both oxygen and acetylene regulators by rotating
adjusting screw to the right until gauge pointer slightly moves up .

31. 12. Apply a leak-test solution.

32. 13. Check the leak-test solution for bubbles.

33. 14. Turn the oxygen regulator adjusting screw to the right to set
the required pressure.

34. 15. Adjust the acetylene regulator adjusting screw to the desired
working pressure.

35. Note: Do not release acetylene or other gasses near sources of
ignition.

36. 16. Open the torch acetylene valve 1/4 turn and light the flame.

37. 17. Adjust the oxyfuel flame according to the desired flow by
turning the torch needle valve.

38. Oxygen and acetylene pressures for
different cutting and welding jobs
Plate
Thickness
Oxygen
(psi)
Acetylene
(psi)
inch mm
1/4 6 30 4
3/8 10 30 4
1/2 12 40 4
3/4 20 40 4
1 26 50 4
1 1/2 38 50 4
2 50 50 4
* Suggested gas pressure schedule according to plate thickness.

39. Types of Oxyfuel Fuel Flames

40. Types of Oxyfuel Fuel Flames