Cutting With The Pt-38; Important - ESAB PT-38 Manuel D'instruction

SECTION 4
DANGER
WARNING
4.0 Cutting with the PT-38
Use the following procedures to cut with the PT-38 torch.
1. Make sure that the wall disconnect switch is on. Turn on the Power Switch to the cutting power source console.
2. Set Pressure Regulator to 80 psig (5.5 bar).
3. PC-1300/1600: Hold the torch nozzle approximately 1/8 in. to 1/4 in. (3.2 mm - 6.4 mm) above the work
and tilted at about 5 - 15°. This reduces the chance of spatter entering the nozzle. If the PT-38's 90A stand-
off guide is being used, the distance between nozzle and work piece will be approximately 1/4 in. (6.4 mm).
PC-900: Hold the torch nozzle approximately 1/8 in. to 3/16 in. (3.2 mm - 4.8 mm) above the work and tilted at
about 5 - 15°. This reduces the chance of spatter entering the nozzle. If the PT-38's 60A standoff guide is being
used, the distance between nozzle and work piece will be approximately 1/8 in. (3.2 mm).
4. Depress the torch switch. Air should flow from the torch nozzle.
5. Two seconds after depressing the torch switch, the pilot arc should start. The main arc should immediately fol-
low, allowing the cut to begin. If using the trigger LOCK mode, torch switch may be released after establishing
the cutting arc.
6. After starting the cut, the torch should be maintained at a 5 - 15° forward angle (Figure 4-1). This angle is es-
pecially useful in helping to create a "drop" cut. When not using the standoff guide, the nozzle should be held
approximately, PC-1300/1600: 1/8 - 1/4 in. (3.2 mm - 6.4 mm), PC-900: 1/8 - 3/16 in. (3.2 mm - 4.8 mm) from the
work.
PC-900/1300/1600
5˚ to 15˚
CUT DIRECTION
Figure 4-1. Proper Torch Angle
DO NOT USE OXYGEN WITH THIS TORCH! A HAZARDOUS FIRE MAY
RESULT.
ELECTRIC SHOCK CAN KILL.
• DO NOT OPERATE THE UNIT WITH THE COVER REMOVED.
• DO NOT APPLY POWER TO THE UNIT WHILE HOLDING OR CARRY-
ING THE UNIT.
• DO NOT TOUCH ANY TORCH PARTS FORWARD OF THE TORCH
HANDLE (NOZZLE, HEAT SHIELD, ELECTRODE, ETC.) WITH POWER
SWITCH ON.
PC-1300/1600

IMPORTANT!!!

Stand-Off Distance
Power Output increases
with Stand-off Distance!
Figure 4-2. Stand-off vs. Power Output
Maintain Proper
1/8 in. to 1/4 in.
(3.2 mm - 6.4 mm)
91
OPERATION
PC-900
IMPORTANT!!!
Maintain Proper
Stand-Off Distance
Power Output increases
with Stand-off Distance!
1/8 in. to 3/16 in.
(3.2 mm - 4.8 mm)