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Tweco Maximizer 300 Torch for BNFL User Manual

Page 20

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INSTALLATION

3-2

Manual 0-2990

4. Feed the torch leads through the boot on the torch

end of the Arc Starter Box.

Torch Leads

Hose Clamp

Shield Braid

Torch Leads

Shield Assembly

(Brass Hub)

A-01441

Figure 3-1 Hose Clamp

5. Feed the torch leads through the supplied Hose

Clamp.

6. Connect the torch leads connectors to the bulk-

head connections per the following figure.

A-01440

Torch Leads

Secondary Gas

Plasma Gas

(Left-Hand Thread)

Coolant Supply

Coolant Return

(Left-Hand Thread)

Figure 3-2 Torch Leads Connections

7. Pull the shielding braid towards the end panel as

far as it will go up and over the brass hub. The
hub is part of the Boot Assembly and provides
the grounding point for the shielding in the torch
leads.

NOTE

The shielding braid must not make contact with
the four mounting studs.

Shield Braid

Torch Leads

Shield Assembly

(Brass Hub)

A-01442

Mounting Stud

Figure 3-3 Shield Braid Installation

8. Place the hose clamp over the shield and hub.

Tighten the hose clamp to secure the shielding
braid to the hub.

NOTE

Make sure that the shielding braid is pulled back
as far as possible from the bulkhead connections.
Leave any extra shielding braid between the hose
clamp and the end panel area.