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Image 1/3: Unthread the poppet retainer from the top of the sealing head body. Image 2/3: Remove the poppet retainer with the [http://www.accustream.com/all-products/11329.html|inlet compression spring]. Image 3/3: Remove the poppet retainer with the [http://www.accustream.com/all-products/11329.html|inlet compression spring].

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Image 1/3: Remove the [http://www.accustream.com/all-products/12662-40-126SS.html|O-ring] from the poppet retainer with a pick. Image 2/3: Be careful to not damage the threads with the pick. Image 3/3: Remove the [http://www.accustream.com/all-products/11316.html|inlet poppet] from the top of the sealing head body.
  • Remove the inlet compression spring from the poppet retainer.

  • Remove the O-ring from the poppet retainer with a pick.

    • Be careful to not damage the threads with the pick.

  • Remove the inlet poppet from the top of the sealing head body.

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Image 1/3: If available, two 1-3/16" wrenches can be used instead of adjustable wrenches. Image 2/3: Unthread the high-pressure sealing head gland from the sealing head body. Image 3/3: Remove the [http://www.accustream.com/all-products/11266.html|high-pressure seat] from the sealing head body.
  • Loosen the high-pressure sealing head gland from the sealing head body with adjustable wrenches.

    • If available, two 1-3/16" wrenches can be used instead of adjustable wrenches.

  • Unthread the high-pressure sealing head gland from the sealing head body.

  • Remove the high-pressure seat from the sealing head body.

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Image 1/3: Clean the sealing head body and the high-pressure sealing head gland with isopropyl alcohol or a similar cleaning agent. Image 2/3: Lap the sealing head body on 1600 grit or finer lapping paper to achieve a mirror finish. Image 3/3: Lap the sealing head body on 1600 grit or finer lapping paper to achieve a mirror finish.
  • Remove the high-pressure spring, poppet pin, and poppet valve from the high-pressure sealing head gland.

  • Clean the sealing head body and the high-pressure sealing head gland with isopropyl alcohol or a similar cleaning agent.

  • Lap the sealing head body on 1600 grit or finer lapping paper to achieve a mirror finish.

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Image 1/3: Insert the high-pressure seat into the sealing head body with the Blue Goop side first. Image 2/3: Apply blue goop to the high-pressure sealing head gland threads and the end. Image 3/3: Apply blue goop to the high-pressure sealing head gland threads and the end.
  • Apply a layer of Blue Goop to the side and one face of the high-pressure seat.

  • Insert the high-pressure seat into the sealing head body with the Blue Goop side first.

  • Apply blue goop to the high-pressure sealing head gland threads and the end.

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Image 1/3: Insert the poppet pin with the high-pressure spring into the high-pressure sealing head gland. Image 2/3: Place the [http://www.accustream.com/all-products/11265.html|poppet valve] into the high-pressure sealing head gland with the solid end away from the poppet pin. Image 3/3: Place the [http://www.accustream.com/all-products/11265.html|poppet valve] into the high-pressure sealing head gland with the solid end away from the poppet pin.
  • Place the high-pressure spring on the poppet pin with the flared end away from the poppet pin.

  • Insert the poppet pin with the high-pressure spring into the high-pressure sealing head gland.

  • Place the poppet valve into the high-pressure sealing head gland with the solid end away from the poppet pin.

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Image 1/3: Thread the high-pressure sealing head gland into the sealing head body. Image 2/3: Tighten the high-pressure sealing head gland into the sealing head body using adjustable wrenches. Image 3/3: If available, two 1-3/16" wrenches can be used instead of adjustable wrenches.
  • Insert the high-pressure sealing head gland into the sealing head body.

  • Thread the high-pressure sealing head gland into the sealing head body.

  • Tighten the high-pressure sealing head gland into the sealing head body using adjustable wrenches.

    • If available, two 1-3/16" wrenches can be used instead of adjustable wrenches.

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Image 1/3: Place the O-ring below the threads of the poppet retainer. Image 2/3: Set the new inlet poppet so it is centered on the top of the sealing head body (covering 4 holes). Image 3/3: Set the new inlet poppet so it is centered on the top of the sealing head body (covering 4 holes).
  • Apply a layer of O-ring lube to the O-ring.

  • Place the O-ring below the threads of the poppet retainer.

  • Set the new inlet poppet so it is centered on the top of the sealing head body (covering 4 holes).

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Image 1/3: Place the inlet compression spring on the poppet retainer. Image 2/3: Thread the poppet retainer into the sealing head body. Image 3/3: Thread the poppet retainer into the sealing head body.
  • Apply a small amount of blue loctite to the threads of the poppet retainer.

  • Place the inlet compression spring on the poppet retainer.

  • Thread the poppet retainer into the sealing head body.

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Image 1/1:
  • Tighten the poppet retainer into the sealing head body with the flat head screwdriver.

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Finish Line

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Adam Dumas

Member since: 05/20/2013

36 Guides authored

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