SET-UP AND SAFE OPERATING PROCEDURES
5-31
0056-0114
delivery gauge rises, there is a leak in the regulator seat. Take the regulator to a qualified
repair technician for repair.
After leak testing the system, open the cylinder valves and proceed.7.
WARNING
If a leak has been detected anywhere in the system, discontinue use and have the system
repaired. DO NOT use leaking equipment. Do not attempt to repair a leaking system
while the system is under pressure.
Perform all operations in a well ventilated area to help prevent the concentration of
flammable or toxic fumes.
5.06 SETTING UP TO WELD, LIGHTING THE TORCH,
AND ADJUSTING THE FLAME
Check the thickness of the metals to be welded. Prepare the metal as described 1.
in Figure 13 on page 35. Refer to the welding tip selection chart on page 57 to
determine the tip size that is required and the regulator pressures for the job.
Open the oxygen valve on the torch handle and adjust the oxygen regulator to the required 2.
delivery range. Then close the torch handle oxygen control valve; this will purge the oxygen
hose.
Open the fuel valve on the torch handle and adjust the fuel regulator to the required delivery 3.
range. Then close the torch handle fuel control valve; this will purge the fuel hose.
WARNING
If the torch handle and hoses are already connected to the regulators, the system MUST
still be purged after every shut-down in a well ventilated area. Open the oxygen valve
1/2 turn. Allow the gas to flow ten seconds for tips up to a size three and 5 seconds for
sizes 4 and larger for each 25 feet of hose in the system. Close the oxygen valve and
purge the fuel system in the same manner.
4. Wear the recommended protective goggles (shaded 5 or darker) with tempered lenses to
shield your eyes from the light. Wear protective clothing as required (see “Protective Apparel”
on page 4).
NOTICE
The following instructions cover torch adjustment procedures for acetylene only. Contact
your gas supplier for instructions on the use of other fuel gases.
5. Hold the torch in one hand and the spark lighter in the other. Be sure the spark lighter is
away from the tip and not obstucting the gas flow.
6.
Open the torch fuel valve approximately 1/8 turn and ignite the gas.
Setting Up Equipment for Welding
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