Thermal Dynamics CutMaster 58 - SECTION 4 TORCH: OPERATION; 4 T.01 Torch Prts Selection; 4 T.02 Cut Quality

CUTMASTER 58
Manual 0-5544 OPERATION
4T-1
SECTION 4 TORCH:
OPERATION
4T.01 Torch Prts Selection
Depending on the type of operation to be done determines
the torch parts to be used.
Type of operation:
Drag cutting, standoff cutting or gouging
Torch parts:
Shield Cup, Cutting Tip, Electrode and Start Cartridge
NOTE!
Refer to Section 4T.07 and following for additional
information on torch parts.
Change the torch parts for a dierent operation as follows:
WARNING
Disconnect primary power at the source before as-
sembling or disassembling torch parts, or torch and
leads assemblies.
NOTE!
The shield cup holds the tip and start cartridge in
place. Position the torch with the shield cup facing
upward to keep these parts from falling out when
the cup is removed.
1. Unscrew and remove the shield cup assembly from
the torch head.
2. Remove the Electrode by pulling it straight out of
the Torch Head.
A-03510_AB
Electrode
Start Cartridge
Tip
Shield Cup
Torch Head
Large O-Ring
Small O-Ring
Torch Parts
3. Install the replacement Electrode by pushing it
straight into the torch head until it clicks.
4. Install the start cartridge and desired tip for the
operation into the torch head.
5. Hand tighten the shield cup assembly until it is
seated on the torch head. If resistance is felt when
installing the cup, check the threads before proceed-
ing.
4T.02 Cut Quality
NOTE!
Cut quality depends heavily on setup and parameters
such as torch stando, alignment with the work-
piece, cutting speed, gas pressures, and operator
ability.
Cut quality requirements dier depending on application.
For instance, nitride build - up and bevel angle may be major
factors when the surface will be welded after cutting. Dross
- free cutting is important when nish cut quality is desired
to avoid a secondary cleaning operation. The following cut
quality characteristics are illustrated in the following gure: