Manual No. 0-5056
3-36
INSTALLATION
6. Connect the gas and coolant leads to the Torch Head.
a. Coolant supply and return connections to the Torch Head are of different lengths.
b. Plasma and secondary gas connections to the Torch Head are threaded differently; the plasma gas
connection is left-hand thread, the shield gas connection is right-hand thread.
c. Hold the Torch Head leads connectors stationary; turn the leads fittings with a wrench to secure the
leads to the Torch Head. Do not overtighten.
CAUTION
The gas and coolant leads include compression fittings. Do not use sealant on these connections.
Slowly apply pressure to the gas lines. Check for leaks at all connections before continuing. If there
are no leaks, shut off the gas supplies and continue with installation.
7. Connect the pilot lead to the Torch Head. Press the two ends of the connector firmly together. Thread the
plastic lead cover/connector onto the mating Torch Head connector.
8. Press the Torch Head Assembly upward to connect to the Mounting Tube. Pull the leads back as needed
to ensure a proper fit through the Mounting Tube and Torch Leads End Cap. Hold the Torch Head Assembly
stationary; rotate the Mounting Tube to thread it onto the Torch Head.
CAUTION
Ensure that the leads do not twist within the mounting tube. Leads must lie as shown in the installation sketch.
9. The lower end of the Mounting Tube includes four threaded holes. Install an Allen set screw in any of the
threaded holes to secure the Torch Head Assembly to the Mounting Tube.
10. Install the appropriate consumable parts as shown on the following pages. The torch manual includes
diagrams showing the correct parts to install, depending on the metal to be cut and the gases in use.
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