Tweco FP-82 - Manual (Page 20)

INSTALLATION 3-4 Manual 0-2870
E. Using High Pressure Gas Cylinders
Refer to the following when using high pressure gas cyl-
inders as the gas supply:
CAUTION
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.
NOTE
Supply hose must be at least 1/4 inch (6 mm) I.D.
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 for ac-
cess 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
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-
moved earlier.
5. Connect the torch Negative/Plasma Lead to the
bulkhead connection inside the Power Supply.
Pilot Lead
Torch Lead
Assembly
Negative/Plasma
Lead
Adapter
Connector
Pilot Lead Stud
Negative/Plasma
Lead Connection
A-03542
Note: Actual Bulkhead
configuration may
differ from that shown.
Adapter
Control Circuit
Connectors
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.