Broco Prime-Cut, Руководство по эксплуатации

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6.2 Techniques
WARNING!
Never let the cutting rod burn down into the torch. Always release the
oxygen lever to extinguish the torch while there are at least 2 inches of rod
remaining.
6.2.1 Piercing
WARNING!
Always wear adequate protective clothing and a full face shield, and
use the leather shield (PC/LS) during piercing operations. Blowback is greater
when piercing. Exercise extreme caution.
1. With the oxygen lever slightly depressed (low oxygen flow), press the burning
tip of the rod against the target material at a 90 ° angle, allowing it to melt a
1/4” deep hole.
2. Insert the rod tip into the depression.
3. Keeping the tip of the rod in the hole, increase the oxygen flow to increase
penetration by slowly depressing the oxygen lever.
4. As the target material melts and flows back out of the hole, move the rod in
and out and around to enlarge the hole and allow the oxygen pressure to wash
away molten material.
5. Remove the rod from the hole before releasing the oxygen lever.
6. When piercing is
completed, release the
oxygen control lever to
extinguish the torch. The rod
will continue to burn only as
long as oxygen is supplied.
7. Never touch a used rod,
the target material or the
work surface with a bare
hand until it has cooled.
Always wear welding gloves.