Examine the torch lead

Examine the torch lead for signs of damage or loose connections. Make sure that the torch lead obeys bend-radius requirements in the instruction manual that came with your cutting system.

  1. Examine the torch lead for kinks, cracks, cuts, or damage.
  2. Replace the torch lead if you find these conditions.
  3. Remove the collar on the torch-end of the torch lead:
    1. Loosen the hose clamp that holds the collar in position.
    2. Pull the collar away from the torch-end of the torch lead assembly.
  4. Remove the torch mounting sleeve:
    1. Use a spanner wrench to hold the torch stable.
    2. Loosen the torch mounting sleeve.
    3. Pull the torch mounting sleeve away from the torch.
    Note:

    A spanner wrench is included in all of the consumable-parts kits. Refer to the Parts List. The spanner wrench helps to reduce torch movement when you loosen or tighten the torch-mounting sleeve.

  5. Make sure that all connections between the torch and torch lead are tight:
    1. If the pilot arc or ohmic cable connectors are not tight, use your fingers to tighten the connections, but do not make them too tight.
    2. If the coolant-return hose connector is not tight, use two wrenches to tighten the nut to 16.3 N∙m –19.0 N∙m (144 lbf∙in – 168 lbf∙in).
    3. Examine the push-to-connect fittings for the Plasma Line A, Plasma Line B, coolant-supply, and shield-gas hoses to make sure that each hose is fully inserted and insertion mark is not in view.

      Use your fingers to push the connector until it stops, approximately 13 mm (0.5 inch) if these connections are not tight.

  6. Install the torch mounting sleeve:
    1. Use a spanner wrench to hold the torch stable.
    2. Move the torch mounting sleeve in the direction of the torch.
    3. Use your hands to tighten the torch mounting sleeve connection.
      Note:

      Do not overtighten the torch mounting sleeve.

      This image shows the torch mounting sleeve being installed.
  7. Put the collar in the correct position on the torch-end of the torch lead:
    1. Move the collar in the direction of the torch-end of the torch-lead assembly.
    2. Tighten the hose clamp that holds the collar in position.
      This image shows the collar in position and tightened with the hose clamp.
  8. If you have a power track that supports the torch lead, look for torch-lead damage or loose connections that are signs that the torch lead movement is more than the 152.5 mm (6 inch) bend-radius requirement.
  9. Adjust or replace the torch lead if necessary.