Tweco XTTM-301 - Manual (Page 32)

INSTALLATION 3-14 Manual 0-4768
B. Connect XT-301 Torch Leads to Remote Arc Starter
1. Connect the torch leads connectors to the bulkhead connections per the following figure.
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.
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
Torch Leads Connections to Arc Starter Box
2. Connect the inner shield leads with red wires and ring terminals to the mounting stud on the bulkhead panel.
3. 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.