07 torch connections – Tweco FP-82 User Manual
E. Using High Pressure Gas Cylinders
Refer to the following when using high pressure gas cyl-
inders as the gas supply:
Pressure should be set at 100 psi (6.9 bar) at the
high pressure gas cylinder regulator.
1. Refer to the manufacturer’s specifications for in-
stallation and maintenance procedures for high
pressure gas regulators.
2. Examine the cylinder valves to be sure they are
clean and free of oil, grease or any foreign mate-
rial. Momentarily open each cylinder valve to
blow out any dust which may be present.
3. The cylinder must be equipped with an adjust-
able high-pressure regulator capable of outlet
pressures up to 100 psi (6.9 bar) maximum and
flows of up to 400 scfh ( 190 lpm).
4. Use a customer-supplied fitting to connect the gas
line to the cylinder. Install the fitting and tighten.
5. Secure the gas supply hose in place with a (cus-
tomer supplied) adjustable hose clamp.
Supply hose must be at least 1/4 inch (6 mm) I.D.
3.07 Torch Connections
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.
Disconnect primary power at the source before dis-
assembling the torch or torch leads.
1. Remove the Cover of the Power Supply for ac-
cess to the Torch Bulkhead Panel. See Section 5.05.
2. Remove the retaining nut from the Strain Relief.
Retaining Nut Removal
3. Feed the torch lead ends and the Strain Relief into
the hole in the front of the unit.
4. Secure the Strain Relief with the retaining nut re-
5. Connect the torch Negative/Plasma Lead to the
bulkhead connection inside the Power Supply.
Pilot Lead Stud
Note: Actual Bulkhead
differ from that shown.
Torch Lead Connections To Bulkhead
6. Connect the Control (PIP) Circuit Connectors to
the mating connectors on the Power Supply
7. Remove the top nut and washer from the Pilot