Tweco Victor Torch Handles,Cutting Attachments - Manual (Page 12)

3-8
note
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.
CaUtion
Point the flame away from people, equipment, and all flammable
materials.
7. Continue opening the fuel valve until the flame stops smoking.
8. Open the torch oxyen valve until a bright neutral flame is
established.
warning
If you experience a sustained backfire (a shrill hissing sound when
the flame is burning inside the nozzle), immediately turn off the
oxygen valve on the torch handle. Then, turn off the fuel valve.
Allow the torch and nozzle time to cool before attempting to reuse.
If backfire recurs, take the apparatus to a qualified repair technician
for repair before using the equipment again.
3.03 weLDING opeRAtIoN
1. Clean the metal joints to be welded from all scale, rust, dirt, paint,
grease, and all foreign materials.
2. Some thicker metals may require additional preparation. Base
metals 1/8" or less do not require beveling.
3. Place the metal to be welded on a non-flammable work table and
determine where the tacking will be required.
4. Begin by tacking the ends of the two pieces of metal together before
welding. Longer pieces may need to be tacked every few inches
along the joint.