Tweco FP-55 - Manual (Page 20)

INSTALLATION 3-4 Manual 0-2846
3.07 Torch Connections
NOTE
Equipment ordered as a system will have the Torch
factory connected to the Power Supply.
The Torch Leads must be properly installed to the Power
Supply for proper operation. If the torch leads were not
factory-installed, make all torch connections to the Torch
Bulkhead Panel for the desired application.
WARNING
Disconnect primary power at the source before dis-
assembling the torch or torch leads.
1. Remove the Cover of the Power Supply to gain
access to the Torch Bulkhead Panel. See Section
5.05.
2. Remove the retaining nut from the Strain Relief.
Strain Relief
Nut
Strain Relief
Torch Leads
Assembly
A-03529
Negative /
Plasma Lead
Pilot Lead
Figure 3-3 Retaining Nut Removal
3. Feed the torch lead ends and the Strain Relief into
the hole in the unit.
4. Secure the Strain Relief with the retaining nut re-
moved earlier.
5. Connect the torch Negative/Plasma Lead to the
bulkhead connection inside the Power Supply.
Adapter
Plug
Pilot Lead
Torch Lead
Assembly
Negative/Plasma
Lead
Adapter
Connector
Pilot Lead Stud
Negative/Plasma Lead
Connection
A-03527
Control Circuit
Connectors
Note: Actual Bulkhead
configuration may
differ from that shown.
Figure 3-4 Torch Lead Connections To Bulkhead
6. Connect the Control (PIP) Circuit Connectors to
the mating connectors on the Power Supply
Adapter.
7. Remove the top nut and washer from the Pilot
Stud.
8. Place the lug on the Pilot Control Wire onto the
stud and secure with the nut and washer removed
in Step 7.
9. Tighten the Strain Relief onto the Torch Leads.
10. Check the torch for proper parts assembly per the
torch manual.
CAUTION
The torch parts must correspond with the type of
operation. Refer to the appropriate torch manual
for proper parts selection.
11. Re-install the Power Supply Cover on the Power
Supply.