Power Supply Input Connections - Gas Supply - Lincoln Electric FineLine 170HD Operator's Manual

FineLine 170HD Plasma System

3.6 Power Supply Input Connections - Gas Supply

Connectors are sized for 3/8" inside diameter hose. Do not change the inlet gas
supply fittings to quick-connect fittings. Using quick-connect fittings to connect and
disconnect pressurized hoses may cause damage to the System. Gas supply hoses
can be supplied as an option. Refer to Figure 5 for the physical location of all
connections. Make connections in the order shown below. When making brass
fitting connections, use two opposing wrenches and only tighten enough to make
gas seals. The fittings are subject to damage if over tightened.
Argon Inlet
Argon is optional and provides improved marking capabilities. If not used, this
inlet should be capped.
Nitrogen Inlet
Nitrogen must be supplied at all times.
H17 Inlet
H17 gas must be supplied to the unit when stainless steel is to be cut with H17
as the plasma gas. If not used, this inlet should be capped.
Air Inlet
Air must be supplied at all times, except when cutting stainless steel with H17.
Refer to Section 2.6 for air quality requirements. If using shop air, the OEM/End
User must install an inline coalescing filter that meets or exceeds the following:
D.O.P Coalescing
Efficiency 0.3 to 0.6
Micron Particles
1 Tested per BCAS 860900 at 40 ppm inlet.
Oxygen Inlet
Oxygen must be supplied to the unit at all times for cutting mild steel; not
required for cutting stainless steel or aluminum.
Nitrogen
This information is subject to the controls of the Export Administration Regulations [EAR]. This information shall not be provided to
non-U.S. persons or transferred by any means to any location outside the United States contrary to the requirements of the EAR.
Maximum Oil
Carryover
PPM w/w
95% 0.85
Oxygen
H17
Argon
Figure 5: Gas Supply Connections
Page 38 of 132
Pressure Drop (PSID)
@ Rated Flow
1
Media Wet with
Media Dry
0.5
2 Add dry + wet for total pressure drop.
Air
From Gas Supply
BK8053-000111 Rev D
2
Particulate
Micron Rating
10-20 wt. oil
0.5 0.7
D.O.P. = Dioctylphthalate