Examine the water tube and torch

  1. Remove the water tube from the torch main body.
    This image shows the torch main body and water tube with O-ring.
    1 Water tube
    2 O-ring
  2. Examine the water tube for bends and pitting. OptionDescription
    If you find bends or pitting Replace the water tube, and then go to step 4.
    If you do not find bends or pitting Continue to the next step.
  3. Examine the O-ring on the water tube. OptionDescription
    If you find signs of damage Replace the O-ring.
    Note:

    Torch rebuild kits are available from Hypertherm®.
    If you do not find signs of damage and the O-ring is dry Apply a thin layer of silicone lubricant (027055).
    Note:

    The O-ring must be shiny. Too much lubricant can prevent water-tube movement. Remove unwanted lubricant if found.
  4. Examine the torch main body and torch insulator for cracks. OptionDescription
    If you find cracks Replace the torch main body.
    If you do not find cracks Continue to the next step.
  5. Examine the nozzle and electrode-mating surfaces on the torch main body for damage or pitting. OptionDescription
    If you find signs of damage or pitting Replace the torch main body.
    If you do not find signs of damage or pitting Continue to the next step.
  6. Clean the torch main body if you did not replace it during step 4 or if you think it is dirty:
    1. Use a clean paper towel or lint-free cloth to clean the internal and external surfaces of the torch main body.
    2. Use a cotton swab to clean internal surfaces that are not easy to touch.
    3. Make sure that you do not let fibers stay on the internal surfaces of the torch main body.
    4. Use compressed air to remove remaining particles from the torch main body.
    This image shows the surfaces to clean on the torch main body.
  7. Examine the O-rings on the torch main body. OptionDescription
    If you find signs of damage Replace the O-ring.
    Note:

    Torch rebuild kits are available from Hypertherm.
    If you do not find signs of damage and the O-ring is dry Apply a thin layer of silicone lubricant (027055).
    Note:

    The O-ring must be shiny. Too much lubricant can prevent gas flow. Remove unwanted lubricant if found.
    If the O-ring has too much lubricant Use a clean, lint-free cloth to remove unwanted lubricant.
    The image shows the location of O-rings on the front of the torch main body. The image shows the location of O-rings on the rear of the torch main body.
  8. Install a water tube in the torch.

    When correctly installed, the water tube can feel loose. Any side-to-side looseness will go away after electrode installation.

Examine the consumable parts.