Tweco PakMaster 50XL Plus (CE) - Manual (Page 22)

SECTION 3: INSTALLATION PROCEDURES 16 Manual 0-2780
NOTE
Supply hose must be at least #4 hose (1/4 in or 6
mm I.D.).
3.09 Connecting Torch Leads
WARNING
Disconnect primary power at the source before as-
sembling or disassembling the power supply, torch
parts, or torch and leads assemblies.
The Torch Leads must be properly installed to the Power
Supply for proper operation. Make all torch connections
to the Torch Bulkhead Panel per the following:
NOTE
Equipment ordered as a system will have the Torch
factory connected to the Power Supply.
1. Turn the screw latch securing the front access panel to
the power supply front panel.
Access
Panel
Screw
Latch
A-02467
Figure 3-8 Front Access Panel
2. Lift up on the access panel to gain access to the torch
bulkhead panel.
CAUTION
This system is designed for use with the PCH/M-
40 torch only. Do not connect any other torch to
this power supply.
3. Remove the Strain Relief Nut from the Strain Relief
supplied on the end of the Torch Leads.
Strain Relief
Nut
Strain Relief
Torch Leads
Assembly
A-02514
Figure 3-9 Torch Strain Relief Nut
4. Feed the end of the torch leads through the hole in the
front panel in the following order:
• Control Cable
• Gas lead
• Pilot Lead
5. Place the Strain Relief Nut over the torch leads and
position it in the hole in the front panel.
6. Hold the Strain Relief Nut in position and tighten the
Strain Relief on the outside of the unit.
7. Connect the torch gas/power lead fitting onto the Gas/
Power Lead Connection.
3.10 Work Cable And Ground
Connections
A. Electromagnetic Interference (EMI)
Pilot arc initiation generates a certain amount of electro-
magnetic interference (EMI), commonly called RF noise.
This RF may interfere with other electronic equipment
such as CNC controllers, etc. To minimize RF interfer-
ence, follow these grounding procedures when install-
ing mechanized systems:
B. Creating an Earth Ground
1. Install a ground wire (not included) between the sys-
tem and a solid earth ground (also called star ground).
To create a solid earth ground, drive a 1/2 in (12 mm)
diameter copper rod at least 6 - 8 ft (1.8 - 2.4 m) into
the earth so that the rod contacts moist soil over most