Thermal Dynamics CutMaster 75, Operating Manual

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OPERATION 4-2 Manual 0-2868
6. GAS Indicator
Green LED indicator comes ON when the input gas
pressure is set to
35 psi (2.4 bar) or higher. Indicator
is OFF when the pressure falls below 35 psi (2.4 bar).
7. DC Indicator
Green LED indicator comes ON while the torch switch
is pressed. Indicates DC output circuit is active.
C. Rear Panel Features
1. Gas Input Port
Input connection for air input.
WARNING
This unit is not to be used with oxygen (O
2
).
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1
2
3
Rear Panel Features
2. Primary Input Power Cable
Primary input power cable (400-V, 460-V, and 600-V
units); input power cable with plug on 208/230-Volt
units.
3. Gas Pressure Regulator/Filter Assembly
Pressure regulator to adjust the input gas pressure.
The pressure regulator has its own built-in filter.
For
improved filtering, other filtering packages are avail-
able as options.
4.03 Preparations For Operating
This procedure should be followed at the beginning of
each shift:
WARNING
Disconnect primary power at the source before as-
sembling or disassembling power supply, torch
parts, or torch and leads assemblies.
A. Torch Parts Selection
Check the torch for proper assembly and appropriate
front end torch parts. The torch parts must correspond
with the type of operation (cutting or gouging). Re-
fer to the torch manual for proper parts selection.
B. Check Primary Input Power Source
1. Check the power source for proper input voltage.
Make sure the input power source meets the power
requirements for the unit per subsection 2.03-A,
Specifications/Design Features.
2. Connect the input power cable (or close the main
disconnect switch) to supply power to the system.
C. Gas Selection
Select single gas supply. Make sure gas source meets
requirements (refer to
subsection 3.06, Gas Require-
ments). Check connections and turn gas supply on.
D. Work Cable Connection
Check for a solid work cable connection to the work-
piece.
Make a solid work cable
connection to the work-
piece or cutting table
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