ESAB POWERCUT-1250, Instruction Manual

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SECTION 3 OPERATION
G. When ending a cut, the torch switch should be released (press and
release if using trigger LOCK mode) and the torch 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).
H. 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 2-second
preflow portion of the cutting cycle.
Fig 3.3. Exploded View of PT-32EH Torch
ELECTRODE
NOZZLE
SHIELD
IMPORTANT!
MAKE SHIELD VERY
TIGHT!
VALVE PIN
*
The valve pin is a crucial member of the system. Its func-
tion is to open the gas flow check valve that is perma-
nently assembled within the torch head. If the pin is not
correctly placed in the electrode, the valve will not open
and the system will not function. The valve pin also im-
proves electrode cooling by increasing the velocity of air
over the inner surface of the electrode.
PLACE NOZZLE INTO
HEAT SHIELD AND
THREAD THIS ASSEM-
BLY TO THE TORCH
BODY AND HAND
TIGHTEN.
PLACE THE VALVE PIN INTO THE
ELECTRODE AND SCREW THE
ELECTRODE INTO THE TORCH HEAD
AND TIGHTEN SECURELY WITH
WRENCH #19129.
1
2
3
*
3.3.1 PT-32EH TORCH PARTS INSTALLATION