Extinguishing The Torch Flame; Shutting Down The System; Bleeding The System; Section 8 − Using Torch With High Pressure Cylinders - Smith Little Torch Owner's Manual

1. Open the torch fuel gas valve approximately 1/8–1/4 turn (counter-
clockwise) and Ignite the fuel gas using an approved friction spark
lighter.
Do not use matches or a cigarette lighter to ignite the gas.
2. Slowly open the torch oxygen valve (counterclockwise) until the
flame is neutralized. This is accomplished by adding oxygen until
the bright cone off the end of the tip just reaches its shortest length.
3. Increase the fuel gas flow by opening torch valve another 1/8 turn.
4. Increase the oxygen until the flame is neutralized. If necessary,
continue this procedure until the maximum volume of fuel and oxy-
gen are being used and the desired flame is achieved.

7-9. Extinguishing The Torch Flame

1. Turn the fuel-gas torch valve to the closed position (clockwise).
2. Turn the torch oxygen valve to the closed position (clockwise).

7-10. Shutting Down The System

1. Extinguish torch flame (see Section 7-9).
2. Turn the oxygen regulator valve knob to the closed position (coun-
terclockwise). Notice arrow on knob.
3. Turn the fuel gas regulator valve knob to the closed position (coun-
terclockwise). Notice arrow on knob.

7-11. Bleeding The System

1. Remove the tip from the torch.
2. Open the torch oxygen valve 1/2 turn until all pressure has been re-
leased from the hose and regulator, then close the torch oxygen
valve.
3. Open the torch fuel gas valve 1/2 turn until all pressure has been
released from the hose and regulator, then close the torch fuel gas
valve.
4. Secure equipment and store in safe area.
SECTION 8 − USING THE TORCH WITH HIGH
PRESSURE, INDUSTRIAL-TYPE CYLINDERS
Install cylinders in an upright position by securing to a station-
ary support or cylinder rack to prevent falling or tipping. Main-
tain a clear path from the cylinders to the work area.
Inspect equipment before use. Do not use if grease or oil is
present on equipment or if equipment is damaged. Have equip-
ment cleaned/repaired by a qualified person.
Do not slightly open or "crack" acetylene cylinder valve to
blow debris from the valve outlet. Remove the debris using ni-
trogen, air, or a clean, oil-free rag.
Use only compressed gas cylinders that are approved by the Depart-
ment of Transportation (DOT) with this equipment. The torch will operate
on cylinders that are available from Smith Equipment or from your local
welding supply dealer.

8-1. Industrial-Type Cylinder Information

D
Industrial oxygen cylinders are pressurized to approximately 2,250
psig (15,513 kPa)
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