Tweco 400 XT Ultra-Cut Plasma Cutting System - Manual (Page 60)

ULTRA-CUT 400 XT
3-38 INSTALLATION Manual 0-5275
3.21 Install Consumable Torch Parts
Install the consumable parts as follows to ensure proper operation. These steps will help ensure that parts are seated correctly.
Art # A-03887
WARNINGS
Do not install consumables into the Cartridge
while the Cartridge is attached to the Torch Head.
Keep foreign materials out of the consumables and Cartridge.
Handle all parts carefully to avoid damage,
which may affect torch performance.
1. Check the appropriate cut chart for the right combination of parts for the cutting application.
2. For 200 Amp parts only, thread the Shield Retainer onto the Shield Cup.
3. Stack the consumable parts together.
Shield
Retainer
Shield Cup
Shield Cap Shield Gas
Distributor
Tip Plasma Gas
Distributor Electrode
Cartridge
Art # A-08303
A B C
1 - Assemble “A” 200 A only. 2 - Assemble “B”. 3 - Assemble “B” to “C”. 4 - Assemble “A” to “B-C” assembly.
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.
5. Use the cartridge tool to hold the cartridge assembly, while turning the shield cup (and shield retainer for 200 Amp parts)
onto the cartridge assembly. For 300 Amp parts turn the shield retainer onto the shield cup now. When this group is
fully assembled, the shield should protrude from the front of the shield cup or shield retainer. Without this protrusion
the shield cup is not properly tightened onto the cartridge assembly.
6. Take the cartridge tool off the cartridge. Fit the cartridge assembly onto the torch head. The Speed Lok ring should click
into place and the cartridge assembly should touch the large O-ring on the torch body.
Torch Head O-Ring
Torch Head
Art # A-08300_AB
0.063 - 0.083"
(1.6 - 2.1 mm)
Protrusion
Installing Assembled Cartridge Onto Torch Head