Introduction
Hypertherm is in no way affiliated with the above mentioned manufacturer.
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Turn OFF all water pressure to the on/off valve.
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Turn the on/off valve ON to raise the poppet stem from the high-pressure seat.
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Unthread the nozzle tube from the valve body using a 3/4" and 7/8" wrench.
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Turn the air to the actuator OFF at the controls.
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Disconnect the air tube from the actuator.
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Unthread the actuator from the valve body using a 1-1/8" wrench.
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Remove the old valve components from the valve body with the included dowel.
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Thoroughly clean the interior/exterior of the valve body with isopropyl alcohol or a similar cleaning agent before replacing the components.
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With the O-ring towards the point of the poppet stem, slide the high-pressure valve seal on to the poppet stem
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Apply a high-pressure lubricant or a similar one(11136) to the outside diameter of the high pressure valve seal.
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Slide the back-up ring on to the poppet stem behind the high-pressure valve seal.
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Apply Blue Goop to the valve screw threads.
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Thread the valve screw into the valve body until it bottoms out.
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With the dowel, push the poppet stem point flush with the bottom of the bore.
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Thread (hand tighten) the actuator to the top of the valve body.
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Reconnect the air line to the top of the actuator.
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Turn the air to the actuator ON to relieve the pressure from the poppet stem.
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Thoroughly clean the nozzle tube of all Blue Goop.
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Reapply Blue Goop to the threads of the nozzle tube.
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Thread the nozzle tube into the bottom of the valve body.
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Tighten the nozzle tube to the valve using 3/4" and 7/8" wrench.
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Turn the air to actuator OFF to set the poppet stem into the seat.
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Apply water pressure to the valve assembly to verify there are no leaks.
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Quickly cycle the valve on and off a few times to purge the system of all contaminants before installing the cutting head.
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Re-install the cutting head and continue the cutting process.
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