Hypertherm - Cut with Confidence

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  1. Loosen the high-pressure gland from the coupler with  1-1/8" and 13/16" wrench.
    • Loosen the high-pressure gland from the coupler with 1-1/8" and 13/16" wrench.

    • Unthread the high-pressure gland from the coupler.

    • Unthread the collet from the swivel shaft.

  2. Remove the high-pressure gland from the swivel shaft.
    • Remove the high-pressure gland from the swivel shaft.

    • Clean the high-pressure gland and the collet of all Blue Goop.

    • Loosen the high-pressure gland from the seal half of the swivel housing with 13/16" wrench.

    • Unthread the high-pressure gland from the seal half of the swivel housing.

    • Clean the high-pressure gland of all Blue Goop.

    • Loosen the bearing half from the seal half of the swivel housing with an adjustable wrench and 1-1/8" wrench.

    • Unthread the bearing half from the seal half of the swivel housing.

    • Pull the swivel shaft out of the back-up bearing.

    • Remove the thrust bearing and the thrust washers from the swivel shaft.

    • Remove the O-ring from the groove of the swivel shaft with a pick.

    • Clean the swivel shaft of all lithium grease and Blue Goop with isopropyl alcohol.

    • Remove the O-ring from the outside groove of the bearing half of the swivel housing.

    • Remove the metal capped wiper from the cavity of the bearing half of the swivel housing with a pick.

      • Do not scratch or damage the bearing half of the swivel housing with the pick.

    • Use a .450" gauge pin to press the swivel bearing out of the bearing half of the swivel housing.

    • Clean the bearing half of the swivel housing with isopropyl alcohol.

    • Remove the bearing back-up from the seal half of the swivel housing.

    • Remove the O-ring from the seal half of the swivel housing.

    • Use a pick to remove the high-pressure seal inside the seal half of the swivel housing.

      • Do not scratch or damage the ID of the seal half of the swivel housing with the pick.

    • Clean the seal half of the swivel housing of all Blue Goop with isopropyl alcohol.

    • Apply a layer of high vacuum grease into the cavity of the seal half of the swivel housing.

    • Apply a layer of high vacuum grease to the high-pressure seal.

    • Put the high-pressure seal (O-ring side first) into the cavity of the seal half of the swivel housing.

    • Apply a layer of O-ring lube to the medium sized O-ring.

    • Put the O-ring onto the threads of the seal half of the swivel housing and push to the base of the seal half.

    • Apply Blue Goop to the external threads on the seal half of the swivel housing.

    • Put the new back-up bearing (cupped side down) on the top of the seal half of the swivel housing.

    • Apply O-ring lube to the smallest O-ring.

    • Put the smallest O-ring onto the swivel shaft groove.

    • Apply a layer of lithium grease to the base of the swivel shaft.

    • Slide the first thrust washer onto the swivel shaft.

    • Apply a layer of lithium grease to the top of the thrust washer.

    • Slide the thrust bearing onto the swivel shaft.

    • Apply a layer of lithium grease to the top of the thrust bearing.

    • Slide the second thrust washer onto the swivel shaft.

    • Apply a layer of lithium grease to the top of the second thrust washer.

    • Apply a layer of high vacuum grease on the non-threaded side of the swivel shaft.

    • Put the short end of the swivel shaft into the back-up bearing.

    • Put the swivel bearing into the cavity of the bearing half of the swivel housing.

    • Press the swivel bearing down into the cavity using a .575" gauge pin (if necessary, also use an arbor press)

    • Make sure the swivel bearing is flush with the top of the cavity.

    • Using an arbor press, press the metal cased wiper into the cavity of the bearing half of the swivel housing (rubber-side down).

    • Using a .575" gage pin, press the wiper down with an arbor press until the wiper bottoms out.

    • make sure the wiper sits just below the top of the cavity.

    • Put the seal half into the bearing half of the swivel housing.

    • Thread the bearing half onto the seal half of the swivel housing.

    • Tighten using a 1-1/8" wrench on the bearing half of the swivel housing and a large adjustable wrench on the seal half of the swivel housing.

    • Roll a dust protecting O-ring over the bearing half of the assembly.

    • Roll the O-ring until it rests in the cavity of the swivel housing covering the two small holes.

    • Apply Blue Goop to the threads of the swivel shaft.

    • Apply Blue Goop to the high-pressure gland threads.

    • Put the high-pressure gland on to the swivel shaft with the threads up.

    • Thread the 3/8" collet onto the swivel shaft.

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

    • Thread in the high-pressure gland into the swivel housing.

    • Tighten the high-pressure gland into the swivel housing with a 13/16" wrench.

Finish Line

Adam Dumas

Member since: 05/20/2013

36 Guides authored

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