Tweco 1000 CE Merlin - Manuel (Page 32)

INSTALLATION 3-14 Manual 0-2731
Outer (GREEN /
YELLOW)
Torch Lead
Shields
External Ground
(Customer Supplied)
Art # A-04002
Torch Leads
Secondary Gas
Plasma Gas (+)
Left-Hand Thread
Coolant Supply (-)
Left-Hand Thread
Coolant
Return
Inner (RED) Torch
Lead Shields
Figure 3-17 Torch Leads Connections
5. Connect the inner shield leads with red wires and ring
terminals to the mounting stud on the bulkhead panel.
6. Remove the nut and bolt mounted to the Remote Arc
Starter front panel. Connect the outer shield leads with
green/yellow wires and ring terminals to the mounting
stud on the inside of the front panel. Secure the stud
to the front panel with a hex nut. Connect a customer-
supplied external ground wire to the stud, outside the
front panel, and secure with a hex nut. Connect the
other end of this ground wire to a properly-installed
earth ground.
CAUTION
If the Arc Starter Box does not include a drilled
hole in the front panel as shown below for the
outer (GREEN / YELLOW) torch lead shields, per-
form the following steps:
• Drill a hole in the area shown.
• Scrape both sides of the front panel down to bare
metal around the hole (to a diameter of ± 3/4" /
19 mm).
• Provide hardware as shown to secure the outer
(GREEN / YELLOW) torch shield leads to the
Arc Starter Box.
• Use the same hardware to connect a customer-
supplied external ground from the Arc Starter
Box to an earth ground.
7. Check the torch for proper parts assembly.
8. Connect the Torch Supply Leads components to
the Remote Arc Starter.
C. Connecting Torch Supply Leads
WARNING
Disconnect primary power at the source before
disassembling the torch or torch leads.
Connect one end of the Torch Supply Leads to the internal
bulkhead inside the Arc Starter Box as follows:
1. Remove the cover from the Arc Starter Box if installed.
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.