Hypertherm - Cut with Confidence

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  1. Always make sure all high-pressure water has been removed from valve by following machine manufacturers' safety instructions. Failure to do so can cause severe injury or death.
    • Always make sure all high-pressure water has been removed from valve by following machine manufacturers' safety instructions. Failure to do so can cause severe injury or death.

    • Turn OFF all water pressure to the on/off valve.

    • Turn the on/off valve ON to raise the needle from the seat.

  2. The components can be replaced with the valve body in the mounting collar.
    • The components can be replaced with the valve body in the mounting collar.

    • Loosen the adapter from the valve body using a 1" and 13/16" wrench.

    • Unthread the adapter from the valve body.

    • Turn the air to the actuator OFF.

    • Disconnect the air line from the actuator.

    • Loosen the actuator from the valve body using a 7/8" wrench.

    • Unthread the actuator from the valve body.

    • Remove all the valve components using the included dowel.

    • Thoroughly clean the interior/exterior of the valve body before replacing the components.

    • Make sure the top and bottom of the bore for cracks/blemishes. If excessive wear or cracks are visible, replace the valve body.

    • Slide the needle bearing onto the needle point with the smaller stepped side away from the needle point.

    • Slide the high-pressure valve seal onto the needle point with the O-ring away from the needle bearing.

    • Apply a high-pressure lubricant to the outside diameter of the high-pressure valve seal.

    • Put the needle point at the top of the valve body.

    • Use the dowel to push the needle in the valve body until the needle bearing bottoms out.

    • Apply Blue Goop to the top threads of the valve body.

    • Thread the actuator onto the valve body.

    • Tighten the actuator to the valve body using a 7/8" wrench.

    • Reconnect the air line to the top of the actuator.

    • Clean the adapter of all Blue Goop with isopropyl alcohol or a similar cleaning agent.

    • Reapply Blue Goop to the top threads and to the top of the adapter.

    • Put the seat at the top of the adapter with the flat side towards the adapter.

    • Apply Blue Goop to the top of the seat.

    • Turn the air to the actuator ON.

    • Thread the adapter into the valve body.

    • Tighten the adapter into the valve body using a 1" and 13/16" wrench.

    • Turn the air to the actuator OFF.

    • Apply water pressure to the valve assembly to verify that there are no leaks

    • Quickly cycle the valve on and off a few times to purge the system of all contaminants before installing the cutting head.

    • Reinstall the cutting head and continue the cutting process.

Finish Line

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Adam Dumas

Member since: 05/20/2013

36 Guides authored

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