Introduction
Hypertherm is in no way affiliated with the above mentioned manufacturer.
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Remove the high-pressure cylinder(s) from the pump.
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Put the cylinder on the Seal Guide tool
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Put the small (stepped) end of the installation tool into the top of the high pressure cylinder.
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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 of the high pressure cylinder.
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Do not remove the sleeve from the high-pressure cylinder.
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Turn the high-pressure cylinder over so the dynamic end is facing up.
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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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Clean the high-pressure cylinder thoroughly after polishing.
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Visually inspect the high-pressure cylinder bore at both ends.
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If the inside bore finish is blemished, use Scotch Brite in both ends of the high-pressure cylinder to smooth out the blemishes by rolling back and forth.
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Apply a high vacuum grease to the O-rings.
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Put the O-rings onto the high-pressure seals.
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Be sure not to twist the O-rings when installing onto the high-pressure seals.
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Thread the seal guide tool onto the static end of the high-pressure cylinder.
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It is helpful to begin with the flat end of the high-pressure cylinder side up.
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Put the installation sleeve into the sleeve guide with the larger ID (tapered) end up.
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Lubricate the ID of the Installation sleeve with a high vacuum grease
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Put the high-pressure seal into the sleeve with the O-ring side down.
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Use the blunt (non-stepped) end of the installation tool to hand press the high pressure seal into the the high-pressure cylinder.
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Put the hoop into the sleeve with the sharp (tapered) end first.
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Push the hoop down into the sleeve with the blunt end of the installation tool.
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Secure hoop in place by tapping installation tool in with a rubber mallet until tool bottoms on high-pressure cylinder face
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Remove seal guide tools from top of high-pressure cylinder (static side)
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Apply a light coat of high vacuum grease to both ends of back-up seal sleeve
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Put the sleeve into the open end of the high-pressure cylinder and repeat the seal installation process.
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Thread the seal guide tool onto the dynamic side of the high-pressure cylinder.
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Put the sleeve into the seal guide tool with the tapered end side facing up.
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Apply a high vacuum grease to the ID of the sleeve.
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Put the high-pressure seal assembly into the sleeve with the o-ring first.
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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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Put the hoop into the sleeve with the sharp (tapered) end first.
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Push the hoop down into the sleeve with the blunt end of the installation tool.
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Secure 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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Remove the seal guide tools from the dynamic side of the high-pressure cylinder.
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Apply blue goop to both threads of the high-pressure cylinder.
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Remove the old bronze back-up ring from the plunger.
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