Tweco Merlin 6000 Master PS - Manual (Page 30)

INSTALLATION PROCEDURES 3-12 Manual 0-2568
OUTPU T OUTPUT TO TO CON TROL CONTROL
MOD ULE MODULE
AIR AIR PLAS MA PLASMA INPU T INPUT
N 2 PLAS MA PLASMA INPU T INPUT
O 2 PLAS MA PLASMA INPU T INPUT
PLAS MA G AS PLASMA GAS
Ar/H Ar/H 2 PLAS MA PLASMA INPU T INPUT
OTHER Secondary
Gas Supply
N2 Secondary
Gas Supply
A-01342
Figure 3-17 Secondary Gas Connections
3.11 Connecting Torch Supply
Leads
The Torch Supply Leads interfaces the Master Power Sup-
ply to the Arc Starter Box. The Torch Supply Leads is
made up of individual hoses and cables that must be con-
nected.
NOTE
Refer to the Arc Starter Box Instruction Manual
0-2572 for details on installation of the Arc Starter
Box.
The Torch Supply Leads components connects directly
to a bulkhead inside the Master Power Supply and to con-
nections inside the right side panel. Connect the Torch
Supply Leads components per the following procedure:
WARNING
Primary power should NOT BE APPLIED when
working inside the power supply.
1. Open the front panel access panel to gain access to
the bulkhead.
2. Feed the four hose assemblies on the Torch Supply
Leads components through the boot on the front panel
of the Master Power Supply.
3. Connect the four hose assemblies onto the mating con-
nections at the internal bulkhead of the Master Power
Supply per the following figure.
Secondary
Gas Lead
Torch Supply Leads
Supply Leads Boot
Coolant Return
Lead
Coolant Supply
Lead
Plasma
Gas Lead
A-01447
Control Cable
Master Power Supply
Bulkhead
Figure 3-18 Leads Extension Hose Connections To
Master Power Supply
4. Connect the end of the Pilot Lead, two wires, to the
Master Power Supply per the following procedure:
a. Remove the right side panel from the Master
Power Supply.
b. Feed the Pilot Lead, two wires, through the small
strain relief at the front panel of the Master Power
Supply.
c. Remove the nut and star washer on the ground
terminal of the pilot connection inside the power
supply.