Maintenance; Inspection And Cleaning Of Consumables - ESAB PT-32EH Manuel D'instruction

sEctIoN 5
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5.1 INspEctIoN aND clEaNINg of coNsuMaBlEs

1. Disassemble the front end of the PT-32EH as follows:
a. Position torch head in a downward direction (refer to Figure 3-2) and remove the shield. The nozzle will drop from
the head and remain in the shield. Unscrew the electrode to remove it and the valve pin. Remove these components
and inspect for wear. The nozzle and electrode will generally wear at the same rate. For best performance, replace
together.
b. Nozzle: Replace if the orifice is clogged, nicked, or out-of-round.
c. Electrode: When replacing the nozzle, always inspect the electrode for wear. If more than .06" (1.5mm) of electrode
Hafnium has eroded, replace the electrode. If the electrode is used beyond this recommended wear limit, damage
to the torch and power source may occur. Nozzle life is also greatly reduced when using the electrode below the
recommended limit. Refer to Figure 5-1.
d. Shield: The face of the shield will gradually erode from the heat and molten metal spray. Replace the shield if more
than 1/8 inch (3.2 mm) has eroded from the face. Refer to Figure 3-2.
e. O-ring: Lubricate as per Figure 5-1. Replace if cut or worn. Air leaking past this seal will reduce cutting perfor-
mance.
2. To replace the above front end components, refer to Figure 3-2.
THE HEAT SHIELD FACE WILL GRADU-
ALLY ERODE WITH USE.
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Before any maintenance is attempted on this torch, make sure the power switch on
the console is in the "off" position and the primary input is deenergized.
LUBRICANT (P/N 0558000443) CAN BE APPLIED TO
O-RING OR HEAT SHIELD.
HEAT SHIELD
NEW
rEplacE ElEctroDE BEforE pIttINg BEcoMEs DEEpEr thaN .06 INch (1.5 MM).
figure 5-1. o-ring, Electrode, and shield Maintenance
O-RING
WORN
81

MaINtENaNcE

Replace when eroded beyond
.06"(1.5mm) Depth.