Connecting Hoses To Regulators. HobartWelders OXY-FUEL OUTFITS 770502, 770974

5-3.

Connecting Hoses To Regulators

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Use only industrial grade hose.

Grade T hose (supplied with outfits) is acceptable for all fuel gases including acetylene. Grade R hose is for acetylene only.

Replace hoses at the first sign of any defects, flaws, or damage. The hoses should otherwise be replaced filtersocket chippinghammer tion. Do not allow hoses to come in contact with hot metal, molten solder, or corrosive chemicals. Do not expose hoses to fluxing agents as these agents will deteriorate the hose materials and cause them to leak.

Do not splice or use damaged hoses.

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

1 Regulator cclamp rpmmeter benchvise popriveter

2 Hose

3 Adjustment Handle

Connect green hose to the regulator on the oxygen cylinder. Connect red hose to the regulator on the fuel gas cylinder.

Tighten the adjustment handle (on the regulator adjustment screw) to bring the pressure up to 5 psi (34 kPa). Allow oxygen to flow through hose for about 10 seconds.

Stop oxygen flow by turning adjustment handle counterclockwise.

Stand with the fuel cylinder valve between

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The fuel fittings have left-handed you and the regulator. Slowly open the fuel belttensiongauge sealant_1 tape

Use a wrench to tighten fittings.

sure stabilizes, then open the fuel valve to a maximum of one full turn (acetylene) or fully open (all other fuel gases).

NOTICE – Before opening the cylinder valves, turn regulator adjusting handles counterclockwise to the off position and there is no resistance on the adjusting handle. This action is necessary to release pressure on the regulator diaphragm. Pressure may damage the regulators.

Tighten the adjustment handle (on the regulator adjustment screw) to bring the pressure up to 5 psi (34 kPa). Allow fuel gas to flow through hose for about 10 seconds.

Stop fuel gas flow by turning adjustment scissors fusepuller tween you and the regulator. Slowly open the oxygen cylinder valve 1/4 turn until the tank pressure stabilizes, then fully open the oxygen valve to seat it in the open position.

Use the correct tip for the gas and metal thickness. Do not exceed the recommended pressures in the Tip and Gas Pressure

Guide tables (see Section 4).

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