Tweco RAS used w-Merlin 6000GST - Manual (Page 17)

Manual 0-2654 13 INSTALLATION PROCEDURES
A-01776
Torch Leads
Secondary Gas
Plasma Gas
(Left-Hand Thread)
Coolant Supply
Coolant Return
(Left-Hand Thread)
Pre-Flow (N2)
Gas
Figure 3-6 Torch Leads Connections
9. 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.
Torch Leads
Shield Braid
Torch Leads
Shield Assembly
(Brass Hub)
A-01777
Mounting
Stud
Figure 3-7 Shield Braid Installation
10. 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.
Hose Clamp
Shield Braid
Under Clamp
Torch Leads
A-01778
Figure 3-8 Hose Clamp Installation
3.06 Connecting Torch Supply Leads
WARNING
Disconnect primary power at the source before dis-
assembling the torch or torch leads.
Connect one end of the Torch Supply Leads to the inter-
nal bulkhead inside the Arc Starter Box per the follow-
ing:
1. Remove the cover from the Arc Starter Box if in-
stalled.
2. Make the following connections to the lead end of
the Arc Starter Box:
NOTE
The lead end of the Arc Starter Box has a boot,
control connector and three gas fittings installed.
a. Connect the control cable connector to the mat-
ing connector
b. Connect the three gas hose assemblies to the
mating connectors (see following NOTE).