Tweco 300 XT Auto-Cut 400V - Manual (Page 81)

AUTO-CUT 300 XT
Manual 0-5290 TORCH INFORMATION 7-5
2, Remove the Removal Tool from the Cartridge and install the assembled Cartridge onto the Torch Head.
CAUTION
The cartridge assembly must cover the O-Ring on the torch head.
Do not force the cartridge if it will not tighten fully. Remove the cartridge assembly and gently clean the threads
on the torch head with a wire brush. Apply oxygen-compatible lubricant (supplied with the torch) to the threads.
Torch Head O-Ring
Torch Head
Art # A-07202
0.063 - 0.083"
(1.6 - 2.1 mm)
Protrusion
Ohmic Clip
Art # A-03393_AB
Installing Assembled Cartridge Onto Torch Head
3. Slide the ohmic clip over the shield cup if using ohmic torch height control sensing.
NOTE
Ohmic height sensing is not recommended with water shield. Water on the plate interferes electrically with the
ohmic sensing circuit.
4. Connect the wire lead from the height finder to the ohmic clip.