Tweco 100 Auto-Cut - Manual (Page 54)

INSTALLATION 3-18 Manual 0-4764
3.14 Install Consumable Torch Parts
1. Refer to the Torch Speed Charts to select the correct parts for the application. The application will de-
termine which torch parts must be used. Refer to the speed charts for the proper torch parts to install
for a selected application.
CAUTION
Do not interchange parts. Make sure both the tip and electrode in the torch correspond with the plasma and
shield gas in use for the application.
2. Install the consumable parts as follows to ensure proper operation. These steps will help ensure that
parts are seated correctly.
3. Stack the consumable parts together.
4. Insert the stack of consumable parts into the cartridge. Ensure that the large O-ring on the torch tip fits
completely into the cartridge. If any part of the O-ring protrudes from the cartridge, the parts are not
seated properly.
Cartridge Covers
O-Ring
on Torch Tip
Shield Cap Protrudes
0.063-0.083" (1.6 - 2.1 mm)
Electrode
Plasma Gas
Distributor
Tip
Shield Gas
Distributor
Shield Cap
O-Ring
on Tip
1: Stack Parts 2: Press Cartridge onto Stacked Parts
4: Check Shield Cap Protrusion
Art # A-04873
No Gaps
Between Parts
3: Thread Shield Cup onto Cartridge
Shield Cap
Shield Cup
5. Use the removal tool to hold the cartridge assembly, while turning the shield cup onto the cartridge as-
sembly. When this group is fully assembled, the shield should protrude from the front of the shield cup
0.063” to 0.083” (1.6 - 2.1 mm). Without this protrusion the shield cup is not properly tightened onto the
cartridge assembly.