Tweco 1000 Merlin(Sept1999) - Manual (Page 26)

INSTALLATION PROCEDURES 22 Manual 0-2731
A-02282
Torch Leads
Secondary Gas
Plasma Gas (+)
Left-Hand Thread
Coolant Supply
Left-Hand Thread
Coolant
Return (-)
Torch Lead Shield
Figure 3-14 Torch Leads Connections
4. Connect the separate shield lead with ring termi-
nal to the mounting stud on the bulkhead panel.
5. Check the torch for proper parts assembly.
CAUTION
The torch parts (gas distributor, electrode, tip, and
shield cup) must correspond with plasma and sec-
ondary selection, output current level, and type of
operation (cutting or gouging). Refer to Section
4.04, Torch Parts Selection.
6. Connect the Torch Supply Leads components to
the Remote Arc Starter (see NOTE).
C. 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. Feed the four hose assemblies on the Torch Supply
Leads through the boot on the lead end of the Arc
Starter Box. The lead end of the Arc Starter Box
has a boot and control connector installed.
3. Connect the four hose assemblies to the internal
bulkhead per the following figure.
A-02283
Plasma Gas (+)
Left-Hand Thread
Coolant Supply
Left-Hand Thread
Secondary
Gas
Coolant Return (-)
Control
Cable
Figure 3-15 Torch Supply Leads Connections
4. Connect the other end of the Torch Supply Leads
fittings onto the mating connections at the bulk-
head panel of the Plasma Power Supply.
A-02167
Control Cable
Connector
Standoff Control or CNC
Interface Cable
Power Supply
Torch Bulkhead
Figure 3-16 Torch Supply Leads Connection To
Power Supply
5. Connect the control cable connector to the mating
connector on the end of the Arc Starter Box.
6. The Power Supply requires internal changes when
the Optional Remote Arc Starter is to be used per
the following procedure:
a. Open the Front Control/Access Panel.