Tweco 6000GST Cutting System - Manuel (Page 18)

INSTALLATION PROCEDURES 14 Manual 0-2654
NOTE
Gas hoses from the Gas Control Module to the
Arc Starter Box are marked on both ends with a
blue band. Each band is marked with 'RAS' (Re-
mote Arc Starter). The hoses between the Gas
Control Module and the Power Supply are not
marked.
A-01779
Plasma Gas
Coolant Supply
Secondary Gas
(Left-Hand Thread)
Coolant Return
(Left-Hand Thread)
Control
Cable
Pre-Flow (N2)
Gas
Figure 3-9 Torch Supply Leads Connections
3. Connect the other end of the control cable and the
three gas hose assemblies onto the mating con-
nections at the input panel of the Gas Control
Module.
Arc Starter
Control Cable
Plasma RAS Gas Hose
(Left-Hand Thread)
Secondary RAS
Gas Hose
Preflow RAS
Gas Hose
A-01805
Rear Panel
J57
Figure 3-10 Connections To Gas Control Module
4. Feed the two coolant hose assemblies on the Torch
Supply Leads through the boot on the lead end of
the Arc Starter Box.
5. Connect the two coolant hose assemblies to the
mating internal bulkhead connectors
6. Connect the other end of the two coolant hose
assemblies onto the mating connections at the
bulkhead panel of the Master Power Supply.
7. Feed the power lead through the boot and con-
nect to the buss bar per the following procedure:
a. Remove the nut and washer from the lower
bolt.
b. Remove the bolt and washer from the lower
hole of the buss bar.
c. Place the ring lug on the power lead over the
end of the bolt.
d. Re-install the bolt and washer with the lug
into the lower hole of the buss bar.
e. Re-install the nut and washer to secure the
lead.
NOTE
Installing the power lead on the lower bolt will
make it easier to install the second power lead if a
dual system is to be used.
A-01780
Washer
Bolt
Power Lead
Buss Bar
Nut
Washer
Figure 3-11 Power Lead Connection
8. Feed the pilot lead through the boot and connect
to the pilot connection per the following proce-
dure:
a. Remove the nut and external star washer from
the pilot connection bolt.
NOTE
Make sure that the inner nut is stays tight.
b. Place the ring lug on the pilot wire over the
end of the bolt.
c. Re-install the external star washer and nut to
secure the lead.