Tweco PakMaster 50XL Plus (CE) - Manual (Page 20)

SECTION 3: INSTALLATION PROCEDURES 14 Manual 0-2780
B. Connecting the Input Power Cable to
Customer Power Source
Connect the supplied input EMC power cable to the cus-
tomer power source per the following procedure:
NOTE
The input power cable must not be modified in any
way as filtering beads are installed on the cable.
1. Strip back the outer covering approximately 3
inches (76 mm) to expose the individual wires at
the free end of the cable.
2. Cut back the insulation on the individual wires
approximately 1/8 - 3/16 inch (3-5 mm).
3. Connect the ends of the individual wires a cus-
tomer supplied plug or main disconnect per the
following:
NOTE
All the input cable wires must be connected for
three-phase operation.
• Blue wire to Line 2 (Live)
• Black wire to Line 3 (Live), refer to Note above
• Brown wire to Line 1 (Live)
• Green/Yellow wire to Ground (Earth)
3.08 Gas Connections
A. Gas Requirements
WARNING
This unit not to be used with oxygen (O
2
).
Gases: Compressed Air or Nitrogen (N
2
) Only
Pressure: 70 psi (4.8 bar)
CAUTION
Maximum input gas pressure must not exceed 125
psi (8.6 bar)
Flow: Cutting - 200 scfh (94.3 lpm)
Gouging - 230 scfh (108.5 lpm)
B. Checking Air Quality
To test the quality of air, place the RUN/SET/LATCH
switch to SET position, place a welding filter lens in front
of the torch and turn on the gas. Any oil or moisture in
the air will be visible on the lens. Do not initiate an arc!
CAUTION
Air supply must be free of oil, moisture, and other
contaminants. Excessive moisture may cause
double-arcing, rapid tip wear, or even complete
torch failure. Contaminants may cause poor cut-
ting performance and rapid electrode wear.
C. Gas Connections
The gas supply is connected to the Pressure Regulator/
Filter Assembly installed on the rear of the unit. The con-
nection is the same for compressed air or high pressure
gas cylinders.
Connect the gas supply as follows:
1. Locate the 1/4 NPT to #4 (6mm) hose barb fitting
shipped inside the Torch Spare Parts Kit.
2. If an optional air line filter is to be installed, refer to
subsection D.
3. Install the supplied barb fitting as shown below.
4. Tighten the barb fitting.
5. Place an adjustable hose clamp (customer supplied),
1/4" (6.4mm) to 5/8" (15.9mm)) over the gas supply
hose.
Regulator/Filter
Assembly
1/4 NPT to #4 (6 mm) Hose
Fitting
#4 (6 mm) Gas
Supply Hose
Hose Clamp
A-01149
Figure 3-5 Gas Connection To Regulator/Filter
Assembly