ESAB PCM-1125, Инструкция по эксплуатации

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4.3 CuTTINg WITH THe PT-27
Use the following procedures to cut with the PT-7 torch (Figure 4-4).
A. Hold the torch nozzle approximately 1/8 to /16 inch above the work and tilted at about 15 - 0°. This reduces the
chance of spatter entering the nozzle. If the PT-7's standoff tool is being used, set the standoff between /16 and
1/4-inch.
B. Depress the torch switch. Air should flow from the torch nozzle.
C. Two seconds after depressing the torch switch, the pilot arc should start. The main arc should immediately follow, al-
lowing the cut to begin. (If using the trigger LOCK mode, torch switch may be released after establishing the cutting
arc.)
D. After starting the cut, the torch should be maintained at a 5-15° forward angle (Figure 4-). This angle is especially
useful in helping to create a "drop" cut. When not using the standoff guide, the nozzle should be held approximately
1/4 inch from the work.
E. When ending a cut, the torch switch should be released (press and release if using trigger LOCK mode) and lifted off
the workpiece just before the end of the cut. This is to prevent the high frequency from reigniting after cutting arc
extinguishes and causing damage to the nozzle (double arcing).
F. For rapid re-starts, such as grate or heavy mesh cutting, do not release the torch switch. In the postflow mode, the arc
can be re-started immediately by depressing the torch switch. This avoids the -second preflow portion of the cutting
cycle.
SeCTION 4 OPeRATION
Figure 4-1. PCM-1125 Controls
ReAR VIeW
AIR REGULATOR
CONTROL KNOB
FAULT LIGHT
(AMBER)
POWER LIGHT
(WHITE)
AIR
PRESSURE
GAUGE
AIR TEST
SWITCH
TRIGGER LOCK
SWITCH
CURRENT
CONTROL
KNOB
POWER ON-OFF
(I-O) SWITCH
FUSE (A)