Firepower FP-78 Operating Manual page 20

7/8"- 200 volt air plasma cutting power supply
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A barb fitting is provided for connection of the
gas supply hose to the rear of the Power Supply.
The fitting is placed in the Spare Parts Kit for
shipment.
2. Depending on the options installed at the factory, in-
stall the supplied barb fitting into the gas connector
fitting input or the IN port of the Optional Two Stage
Air Filter Assembly at the rear panel.
3. Tighten the barb fitting.
4. Place an adjustable hose clamp, 1/4" (6.35mm) to 5/
8" (15.88mm)) over the gas supply hose.
1/4 NPT to
#4 (6 mm) Hose
Fitting
Hose Clamp
#4 (6 mm) Gas
Supply Hose
Figure 3-7 Gas Connection To Regulator/Filter
Assembly
INSTALLATION PROCEDURES
NOTE
Gas Connector
Fitting
A-01681
1/4 NPT to
#4 (6 mm) Hose
Fitting
Hose Clamp
#4 (6 mm) Gas
Supply Hose
Two Stage Filter
Assembly
Figure 3-8 Gas Connection To Optional Two Stage
Filter Assembly
5. Refer to the following when using high pressure gas
cylinders as the gas supply:
Pressure should be set at 100 psi (6.9 bar or 690
kPa) at the high pressure gas cylinder regulator.
a. Refer to the manufacturer's specifications for in-
stallation and maintenance procedures for high
pressure gas regulators.
b. 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.
c. The cylinder must be equipped with an adjustable
high-pressure regulator capable of outlet pres-
sures up to 100 psi (6.9 bar or 690 kPa) maximum
and flows of up to 300 scfh (141.5 lpm).
6. Slide the gas supply hose over the barb fitting in-
stalled in Step 2.
14
Filter IN Port
Gas Connector
Fitting
A-01682
CAUTION
Manual 0-2700

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