January 8, 2009 6 Manual 0-2880 Rev AB
Inspection and Replacement of
Consumable Torch Parts
A. General Information
WARNINGS
Disconnect primary power to the system before dis-
assembling the torch or torch leads.
DO NOT touch any internal torch parts while the
AC indicator light of the Power Supply is ON.
Unthread the shield cup assembly to remove the consumable
torch parts.
1. Inspect the cup for damage. Wipe it clean or replace if
damaged. Slag built up on the shield cup that cannot be
removed may affect the performance of the system.
Art # A-03417
Electrode
Start Cartridge
Tip
Shield Cup
Assembly
Torch Head
2. Check the tip for excessive wear (indicated by an elongated
or oversized orifice). Clean or replace the tip if necessary.
Good Tip
Worn Tip
A-03406
3. On torches with a shield cup body and a shield cap or
deflector, ensure that the cap or deflector is threaded
snugly against the shield cup body. In shielded drag
cutting operations (only), there may be an O-ring be-
tween the shield cup body and drag shield cap. Do not
lubricate the O-ring.
Drag Shield Cap
Shield
Cup Body
O-Ring No. 8-3488
Art # A-03878
4. Check the starter cartridge for excessive wear, plugged gas
holes, discoloration, and for free movement of the lower
end plate. Replace if necessary.
Lower End Fitting
Start Cartridge
Art # A-03621
5. Check the end of the electrode for excessive wear.
Worn Electrode
New Electrode
Art # A-03284
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