Examine the consumable parts

The task involves examining, cleaning, and replacing the consumable parts of the XPR® plasma cutting system as necessary, and reinstalling them before powering the system.

  1. Examine the consumable parts for damage and excess wear.
    Table 1. Inspection tasks for consumables
    Inspect Look for Action if found
    Shield cap

    Erosion or missing material

    Cracks

    Melted, eroded, or missing material

    Damaged O-rings

    		 Replace the shield cap.
    Molten material attached

    If there is no damage to the shield cap, you can remove the molten material.

    If there is damage, replace the shield cap.
    Dry O-rings Apply a thin film of silicone lubricant (027055) to O-rings that appear dry.
    Shield

    A center hole that is not circular

    Damaged O-rings

    		 Replace the shield.
    Over-lubricated O-rings Use a clean, lint-free cloth to remove excess lubricant.
    Dry O-rings Apply a thin film of silicone lubricant (027055) to O-rings that appear dry.
    Nozzle retaining cap

    Damage

    Poor cut quality after replacing other consumables

    Damaged O-rings

    		 Replace the nozzle retaining cap.
    Dry O-rings Apply a thin film of silicone lubricant (027055) to O-rings that appear dry.
    Nozzle

    Erosion or missing material

    Blocked gas holes

    A center hole that is not circular

    Damaged O-rings

    		 Replace the nozzle.
    Over-lubricated O-rings Use a clean, lint-free cloth to remove excess silicone lubricant.
    Dry O-rings Apply a thin film of silicone lubricant (027055) to O-rings that appear dry.
    Swirl ring

    Chips or cracks

    Blocked gas holes

    Damaged O-rings

    		 Replace the swirl ring.
    Dirt or debris

    Use compressed air to remove dirt or debris.

    Replace the swirl ring if you find damage.
    Over-lubricated O-rings Use a clean, lint-free cloth to remove excess silicone lubricant.
    Dry O-rings Apply a thin film of silicone lubricant (027055) to O-rings that appear dry.
    Electrode Damaged O-rings Replace the electrode. Use the electrode torque tool (429013) to correctly tighten the electrode.
    Over-lubricated O-rings Use a clean, lint-free cloth to remove excess lubricant.
    Dry O-rings Apply a thin film of silicone lubricant (027055) to O-rings that appear dry.

    Emitter wear

    For guidance about how to identify emitter wear, refer to Indicators of emitter wear.

    		 Replace the electrode and nozzle. Use the electrode torque tool (429013) to correctly tighten the electrode.
    Note:

    If an electrode needs replacement because of emitter wear, always replace the nozzle at the same time as the electrode.

  2. If any consumable part needs replacement, refer to Install the consumables.
  3. Clean the consumable parts that do not need replacement:
    1. Use a clean, lint-free cloth to wipe the internal and external surfaces.
    2. Use compressed air to remove debris from internal and external surfaces.

      The nozzle retaining cap can retain debris. Make sure to clean it thoroughly.

    3. Use clean water if you choose to wash consumables parts in water.

      Use water from the faucet to soak or rinse them. Never use the water from a cutting table to wash consumable parts. Cutting table water has contaminants that will damage consumable parts.

    4. Apply a thin film of silicone lubricant (027055) to any O-ring that looks dry.

      The O-rings should look shiny. Too much lubricant can prevent gas flow. Remove excess lubricant if found.

  4. Before you supply power to the cutting system, install the following components:
    • Consumables in the torch.
    • Torch in the torch receptacle.