Installing Regulators On Cylinders. HobartWelders OXY-FUEL OUTFITS 770502, 770974

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5-2.

Installing Regulators On Cylinders

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NGO’s tools/ ear plugs electrodewrench

161-027 / 029

Use only acetylene or propane gas and oxygen with this equipment.

Do not slightly open or "crack" fuel cylinder valve to blow debris from the valve outlet. Remove the debris using nitrogen, air, or a clean, oilfree rag.

Do not use pipe sealants on metal to metal fittings, such as hose and torch connections and CGA cylinder connections.

Do not handle oxygen regulators with oily hands and never apply oil to any part of an oxygen regulator.

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Do not use cylinder adaptors to connect regulators to cylinders. Regulators have CGA connections (manufactured to standards of the Compressed Gas

Association) which allow the regulator to only be installed on the appropriate cylinder valve for the intended gas.

1 Oxygen Regulator(Green Label)

2 Fuel Regulator(Red Label)

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The hex nut on the fuel regulator has notches on the corners. The hex nut corners are smooth on the oxygen regulator.

Install the two-piece fitting of the oxygen regulator (green) on the corresponding fitting on the oxygen cylinder. The oxygen cylinder has right-hand (clockwise) threads. Use a wrench to tighten hex nut.

Install the two-piece fitting of the fuel regulator (red) on the fuel cylinder (acetylene or propane only). The fuel cylinder has lefthand (counterclockwise) threads. Use a wrench to tighten hex nut.

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Contact the gas supplier if the regulator fittings do not match the cylinder fittings.

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4 Cylinder Pressure Gauge

Each regulator has two gauges. The gauge closest to the cylinder shows the pressure in the cylinder. The other gauge shows the outlet pressure going to the torch handle.

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