HPR cartridge torch maintenance and rebuild instructions

Posted on 06/08/2022 in Setup and support, Plasma cutting

Use the torch-rebuild kit (528106) for regular torch maintenance

  1. using the torch-rebuild kit (528106) for torch maintenance, do the following steps to disconnect the electrical power from the cutting system:
    • Set the line-disconnect switch to the OFF position.
    • Make sure that the power-indicator LED is not illuminated on the plasma power supply.

  2. ILL_HPRcartridge_1.jpgRemove the torch from the HPRXD receptacle and remove the retaining cap and cartridge from the torch.

  3. Replace the following parts:
    • Water tube (1)
      • Put the water tube into the torch until it comes to a stop. The water tube will move slightly to align with the electrode in the cartridge.
    • Four O-rings (2) on the front of the torch
      • Apply a thin layer of silicone lubricant to each O-ring before installation. Make sure that the O-rings look shiny, but that there is not too much lubricant.
    • ILL_HPRcartridge_2.jpgOne O-ring on the coolant-in connector (3) and the four bullet connectors with corresponding O-rings (4) on the rear of the torch
      • Use pliers to pull the old bullet connectors straight out.
      • Apply a thin layer of silicone lubricant to each O-ring before installation. Make sure that the O-rings look shiny, but that there is not too much lubricant.
      • Install the new O-ring on the coolant-in connector.
      • Install the new bullet connectors. Make sure that each bullet connector is fully installed. Do not use tools to push the bullet connectors into the slots. Tools can cause damage to the bullet connectors.
    • ILL_HPRcartridge_3.jpg

      Large O-ring (5) on the HPRXD receptacle
      • Do not lubricate this O-ring.

  4. Examine the cartridge and retaining cap and remove any contamination.

  5. Install the cartridge by pushing it onto the torch and then install the retaining cap. Turn the retaining cap until it comes to a stop.

  6. Assemble the torch and HPRXD receptacle.
    • To prevent damage, make sure to correctly align the torch and HPRXD receptacle.
    • Make sure that there is no space between the torch and the O-ring on the HPRXD receptacle.

Please see the HPR cartridge instruction manual (810992) for the HPR cartridge torch maintenance and rebuild instructions starting on page 33.

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