Tweco SL100 - Manual (Page 37)

Manual 0-2962 5-3 SERVICE
5.04 Inspection and Replacement of
Consumable Torch Parts
WARNINGS
Disconnect primary power to the system before
disassembling the torch or torch leads.
DO NOT touch any internal torch parts while the
AC indicator light of the Power Supply is ON.
Remove the consumable torch parts as follows:
NOTE
The shield cup holds the tip and starter car-
tridge shield cup in place. Position the torch
with the shield cup facing upward to prevent
these parts from falling out when the cup is
removed.
1. Unscrew and remove the shield cup from the torch.
NOTE
Slag built up on the shield cup that cannot be
removed may effect the performance of the
system.
2. Inspect the cup for damage. Wipe it clean or replace
if damaged.
Art # A-03417
Electrode
Start Cartridge
Tip
Shield Cup
Assembly
Torch Head
Consumable Parts
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
between 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. Remove the tip. Check for excessive wear (indicated
by an elongated or oversized orifice). Clean or replace
the tip if necessary.
Good Tip Worn Tip
A-03406
Tip Wear
5. Remove the starter cartridge. Check for excessive wear,
plugged gas holes, or discoloration. Check the lower
end fitting for free motion. Replace if necessary.
Lower End Fitting
Start Cartridge
Art # A-03621
6. Pull the Electrode straight out of the Torch Head. Check
the face of the electrode for excessive wear. Refer to
the following figure.