Tweco 100 Auto-Cut - Manuel (Page 41)

Manual 0-4764 3-17 INSTALLATION
3.13 Torch Head Installation and Connection
Install the Torch as follows:
1. Install the torch mounting block on the cutting table (gantry). Fasten the block in place.
2. Leave the end cap in place on the torch leads. Remove and discard the protective end caps from the
Mounting Tube.
3. Install the O-ring in the groove at the upper end of the mounting tube. Slide the torch mounting tube
onto the leads far enough to expose the fittings on the ends of the leads.
4. Connect the Torch Head to the torch leads. Follow the sequence shown. Do not let the leads twist.
Shield ('Secondary')
Gas Connector
Coolant Supply Connector
Coolant Return
Check Valve
and Connector
Plasma Lead
Connector
Pilot Lead
Plasma Lead
Art # A-06258
Insulating Paper
Insulating Paper
2
Shown to illustrate
assembly order only;
parts must remain
secured tightly.
1
Positioning Tube
End Cap
O-Ring
O-Ring
Torch Leads
Threaded
Holes
Drain Holes
Positioning Tube
Detail
5. Slide the positioning tube down to the torch head. Hold the torch head stationary. Rotate the position-
ing tube onto the torch head. Pull the leads back as needed to ensure a proper fit through the Mounting
Tube. Do not let the torch leads twist.
CAUTION
Ensure that the leads do not twist within the mounting tube. Leads must lie as shown in the installation sketch.
6. The lower end of the Mounting Tube includes four threaded holes. Install an Allen set screw from the
hardware kit in any of the threaded holes to secure the Torch Head Assembly to the Mounting Tube.
7. Fasten the positioning tube into the mounting block. Slide the leads end cap down onto the torch posi-
tioning tube. Ensure that the end cap engages the O-ring at the top of the positioning tube.
8. Install the shield cup, and cartridge assembly (including consumables) onto the torch head.