Hypertherm - Cut with Confidence

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Introduction

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

Image 1/3: Position the high-pressure cylinder on the  [http://www.accustream.com/all-products/12387.html|seal guide tool]. Image 2/3: Position the small (stepped) end of the installation tool into the top of the high-pressure cylinder. Image 3/3: Position the small (stepped) end of the installation tool into the top of the high-pressure cylinder.
  • 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.

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Image 1/3: Do not remove the sleeve from the high-pressure cylinder. Image 2/3: Turn the high-pressure cylinder over so the dynamic end is facing up. Image 3/3: 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.
  • 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.

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Image 1/3: Visually inspect the high-pressure cylinder bore at both ends. Image 2/3: 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. Image 3/3: 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.
  • 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.

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Image 1/3: Install all 4 O-rings onto the high-pressure seals. Image 2/3: Be sure not to twist the O-rings when installing them onto the high-pressure seals. Image 3/3: Thread the seal guide tool onto the static end of the high-pressure cylinder.
  • 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.

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Image 1/3: Lubricate the ID of the Installation sleeve with the high-vacuum grease. Image 2/3: Put the high-pressure seal into the sleeve with the O-ring side down. Image 3/3: Put the high-pressure seal into the sleeve with the O-ring side down.
  • 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.

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Image 1/3: Put the hoop into the sleeve with the sharp (tapered) end first. Image 2/3: Push the hoop down into the sleeve with the blunt end of the installation tool. Image 3/3: Push the hoop down into the sleeve with the blunt end of the installation tool.
  • 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.

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Image 1/3: Remove the seal guide tools from the top of the high-pressure cylinder (static side). Image 2/3: Apply a light coat of grease to both ends of the back-up seal sleeve. Image 3/3: Apply a light coat of grease to both ends of the back-up seal sleeve.
  • 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.

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Image 1/3: Thread the seal guide tool onto the dynamic side of the high-pressure cylinder. Image 2/3: Put the sleeve into the seal guide tool with the tapered end facing up. Image 3/3: Put the sleeve into the seal guide tool with the tapered end facing up.
  • 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.

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Image 1/3: Put the seal assembly into the sleeve with the O-ring first. Image 2/3: Use the blunt (non-stepped) end of the installation tool to hand press the high-pressure seal into the high-pressure cylinder. Image 3/3: Use the blunt (non-stepped) end of the installation tool to hand press the high-pressure seal into the high-pressure cylinder.
  • 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.

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Image 1/3: Push the hoop down into the sleeve with the blunt end of the installation tool. Image 2/3: 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. Image 3/3: 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.
  • 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.

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Image 1/3: Apply Blue Goop to both threads of the high-pressure cylinder. Image 2/3: Remove the old [http://www.accustream.com/all-products/11134.html|bronze back-up ring] from the plunger. Image 3/3: Remove the old [http://www.accustream.com/all-products/11134.html|bronze back-up ring] from the plunger.
  • 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.

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Image 1/3: Replace the bronze back-up with the new disc from the kit onto the plunger. Image 2/3: Put the high-pressure cylinder on the plunger with the dynamic side first. Image 3/3: Put the high-pressure cylinder on the plunger with the dynamic side first.
  • 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.

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Finish Line

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Adam Dumas

Member since: 05/20/2013

36 Guides authored

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