Hypertherm - Cut with Confidence

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Introduction

Hypertherm is in no way affiliated with the above mentioned manufacturer.

  1. Remove the  high-pressure cylinder(s) from the pump.
    • Remove the high-pressure cylinder(s) from the pump.

    • Position the high-pressure cylinder on the seal guide tool.

    • Position the small (stepped) end of the installation tool into the top of the high-pressure cylinder.

  2. Use a rubber mallet to push the  internal back-up seal sleeve through the high-pressure cylinder forcing the seal and the hoop out of the other end.
    • Use a rubber mallet to push the internal back-up seal sleeve through the high-pressure cylinder forcing the seal and the hoop out of the other end.

      • Do not remove the sleeve from the high-pressure cylinder.

    • Turn the high-pressure cylinder over so the dynamic end is facing up.

    • Put the non-stepped end of the installation tool in the dynamic side of the high-pressure cylinder, push the other seal out by tapping with a rubber mallet.

    • Clean the high-pressure cylinder thoroughly after polishing.

    • Visually inspect the high-pressure cylinder bore at both ends.

    • If the inside bore finish is blemished, use scouring pad in both ends of the high-pressure cylinder, to smooth out blemishes, rolling back and forth.

    • Apply high-vacuum grease to the O-rings.

    • Install all 4 O-rings onto the high-pressure seals.

      • Be sure not to twist the O-rings when installing them onto the high-pressure seals.

    • Thread the seal guide tool onto the static end of the high-pressure cylinder.

      • It is helpful to begin with the flat end of the high-pressure cylinder side up.

    • Put the installation sleeve into the sleeve guide with the larger ID (tapered) end up.

    • Lubricate the ID of the Installation sleeve with the high-vacuum grease.

    • Put the high-pressure seal into the sleeve with the O-ring side down.

    • Use the blunt (non-stepped) end of the installation tool to hand press the high-pressure seal into the high-pressure cylinder.

    • Put the hoop into the sleeve with the sharp (tapered) end first.

    • Push the hoop down into the sleeve with the blunt end of the installation tool.

    • Put the hoop in place by tapping the installation tool in with a rubber mallet until the tool bottoms at the high-pressure cylinder face.

    • Remove the seal guide tools from the top of the high-pressure cylinder (static side).

    • Apply a light coat of grease to both ends of the back-up seal sleeve.

    • Put the sleeve into the open end of the high-pressure cylinder and repeat the high-pressure seal installation process.

    • Thread the seal guide tool onto the dynamic side of the high-pressure cylinder.

    • Put the sleeve into the seal guide tool with the tapered end facing up.

    • Apply a high-vacuum grease to the ID of the sleeve.

    • Put the seal assembly into the sleeve with the O-ring first.

    • Use the blunt (non-stepped) end of the installation tool to hand press the high-pressure seal into the high-pressure cylinder.

    • Put the hoop into the sleeve with the sharp (tapered) end first.

    • Push the hoop down into the sleeve with the blunt end of the installation tool.

    • Put the hoop in place by tapping the installation tool in with a rubber mallet until the tool bottoms out on the high-pressure cylinder face.

    • Remove the seal guide tools from the dynamic side of the high-pressure cylinder.

    • Apply Blue Goop to both threads of the high-pressure cylinder.

    • Remove the old bronze back-up ring from the plunger.

    • Apply Blue Goop to the threads on both ends of the cylinder and to the threads on the end cap.

    • Replace the bronze back-up with the new disc from the kit onto the plunger.

    • Put the high-pressure cylinder on the plunger with the dynamic side first.

Finish Line

8 other people completed this guide.

Adam Dumas

Member since: 05/20/2013

36 Guides authored

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