Tweco SL100 - Manual (Page 25)

Manual 0-2962 4-1 OPERATION
SECTION 4:
OPERATION
4.01 Introduction
This section provides a description of the SL60 and SL100
Torch Assemblies followed by operating procedures.
4.02 Functional Overview
The Torch is designed to operate with various Power Sup-
plies to provide a plasma cutting system which can cut
most metals. With gouging torch parts the torch can be
used for plasma arc gouging.
NOTE
Refer to Appendix Pages for additional informa-
tion as related to the Power Supply used.
4.03 Getting Started
Follow this procedure at the beginning of each shift:
WARNING
Disconnect primary power at the source before
assembling or disassembling power supply,
torch parts, or torch and leads assemblies.
A. Torch Parts
Check the torch for proper assembly. Install proper
torch parts for the desired application (refer to Section
4.04, Torch Parts Selection).
B. Input Power
Check the power source for proper input voltage.
Close main disconnect switch or plug unit in to supply
primary power to the system.
C. Work Cable
Check for a solid cable connection to the workpiece.
D. Gas Supply
Select desired single gas supply. Make sure gas
sources meet requirements (see Note). Check con-
nections and turn gas supply on.
NOTE
Refer to Appendix Pages for additional informa-
tion as related to the Power Supply used.
E. Power On
Place the ON - OFF Switch on the Power Supply to the
ON position. If the RUN - SET - LATCH , RUN - SET
or RUN - RAPID AUTO RESTART - SET Switch is in
SET position, gas will flow. If the switch is in RUN
position there will be no gas flow.
F. RUN - SET - LATCH , RUN - SET or RUN - RAPID
AUTO RESTART Switch
If the RUN - SET - LATCH , RUN - SET or RUN - RAPID
AUTO RESTART - SET switch is in SET position, gas
will flow. If the switch is in RUN position there will
be no gas flow.
G. Current Output Level
At the Power Supply, set the desired current output
level. For drag cutting set the control at 40 amps or
less only.
!
WARNING
Maximum current is 60 Amps for SL60 Torches,
or 100 Amps for SL100 Torches. Operation of
this torch at higher outputs may damage the
torch, the leads, the components, or the Power
Supply. DO NOT operate the SL60 torch at
more than 60 Amps, or the SL100 torch at more
than 100 Amps.
H. Pressure Settings
Place the RUN - SET - LATCH , RUN - SET or RUN
- RAPID AUTO RESTART - SET switch to the SET po-
sition. Adjust the gas pressure control on the Power
Supply for the proper gas pressure. Refer to Appendix
Pages for gas pressure and other specifics.
I. Ready for Operation
Return the RUN - SET - LATCH , RUN - SET or RUN -
RAPID AUTO RESTART - SET switch to RUN position.
NOTES
For general cutting, use the RUN position
which provides normal torch operation where
the torch switch must be held throughout the
main arc transfer.
For specific applications, use the LATCH posi-
tion where the torch switch can be released
after the main arc transfer. The torch remains
activated until the main arc breaks from the
workpiece.