Installation / Operation; Torch / Consumables Inspection; Disassembly Of Torch - Removing Consumables - ESAB PT-31XL Manuel D'instruction

SECTION 3
3.1

TORCH / CONSUMABLES INSPECTION

For detailed installation and operation follow all torch instructions in the plasma system manual packed with your cutting
package. DO NOT install or attempt to operate this torch without following those instructions first.
WARNING
WARNING
WARNING
1. Periodically check the heat shield, electrode, nozzle, and swirl baffle. Replace if worn or damaged.
2. The power cable assembly should be inspected periodically. If there are any cuts through the protective sheath or if gas
leaks are noted, replace the damaged assembly.
3. Do not continue to use torch if the electrode erodes to a length shorter than 16mm (0.63 inch) as shown in Figure 3-1.
WARNING
4. The gas flow check valve is part of the safety interlock and is permanently assembled in the torch head. The head must
be replaced if this valve malfunctions. The light spring force used to close the ball check can be felt by pushing on the
electrode when assembling the front end components.
The electrode seat comes assembled in the front end of the torch. When using the XT consumables, make
sure the plunger, P/N 0558000511 (20324), is installed under the seat. If missing, remove seat and install
plunger. Make sure seat is tightened firmly with a wrench but do NOT overtighten.
3.2

DISASSEMBLY OF TORCH - REMOVING CONSUMABLES

1. To disassemble the front end, hold the torch with the shield in an upright position as shown in Figure 3-2. This will prevent
the nozzle, electrode, and swirl baffle from falling free when the shield is removed.
2. If the torch is fixed and cannot be rotated upward, the alternate method of disassembly is to disassemble the electrode,
swirl baffle and nozzle as above being careful not to damage them by letting them fall.
Conditions under which extra precautions are to be observed during plasma
cutting:
1. Refer to general warnings in manual.
2. Do not cut closed containers. An explosion may result.
Before inspecting or changing consumables make sure power switch on the power
source is in the OFF position and primary input power is deenergized.
BE SURE to install the swirl baffle in the torch. Failure to do so would allow the
nozzle (tip) to contact the electrode. This contact would permit high voltage to
be applied to the nozzle. Your contact with the nozzle or workpiece could then
result in serious injury or death by electric shock.
The torch head contains a gas flow check valve that acts in conjunction with the
flow switch and circuitry within the power source. This system prevents the torch
from being energized with high voltage if the torch switch is accidentally closed
when the heat shield is removed. ALWAYS REPLACE TORCH WITH THE APPROPRIATE
TORCH MANUFACTURED BY ESAB SINCE IT ALONE CONTAINS ESAB'S PATENTED
SAFETY INTERLOCK.
Note
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INSTALLATION / OPERATION