Hypertherm - Cut with Confidence

Site Navigation

Your Account

Choose Language

  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 accu seat.

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

    • Loosen the adapter from the valve body using 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 from the valve body using the included dowel.

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

    • Check 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 step 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 similar cleaning agent.

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

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

    • Apply Blue Goop to the top of the accu 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 there are no leaks

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

    • Reinstall cutting head and continue the cutting process.

Finish Line

2 other people completed this guide.

Adam Dumas

Member since: 05/20/2013

36 Guides authored

0 Comments