Tweco 35A CutSkill Power Supply and SL40 Torch EU version - Manual (Page 25)

cutskill 35A
Manual 0-5180 4-5 OPERATION
4.03 Sequence of Operation
The following is a typical sequence of operation for this
power supply. Refer to Appendix 1 for block diagram.
1. Plug the input power cord into an active circuit.
a. AC power is available at the power supply.
2. Place the ON / OFF switch on the power supply
to ON (up) position.
a. AC indicator turns on; fan turns on.
NOTE
Gas will automatically flow from torch for 4
seconds, this is a safety circuit that makes
sure the torch tip is properly installed.
3. Set gas pressure.
a. Turn gas pressure adjustment knob to set
pressure to 75 psi / 5.2 bar.
NOTE
Minimum pressure for power supply opera-
tion is lower than minimum pressure for torch
operation.
4. Wear protective clothing, including welding gloves
and appropriate eye protection (see table 1-1).
Place tip on work piece and pull trigger. Arc will
initiate and start cutting material.
• Standoff Cutting With Hand Torch
NOTE
For best performance and parts life, always use
the correct parts for the type of operation.
A. The torch can be comfortably held in one hand
or steadied with two hands. Position the hand
to press the Trigger on the torch handle. With
the hand torch, the hand may be positioned
close to the torch head for maximum control
or near the back end for maximum heat protec-
tion. Choose the holding technique that feels
most comfortable and allows good control
and movement.
NOTE
The tip should never come in contact with the
workpiece except during drag cutting opera-
tions.
B. Depending on the cutting operation, do one
of the following:
a).
For edge starts, hold the torch
perpendicular to the workpiece with the
front of the tip on the edge of the workpiece
at the point where the cut is to start.
b). For standoff cutting, hold the
torch tip on the work piece, pull the trigger.
After the arc is initiated lift the tip to 1/8"
- 3/8" (3-4mm) off the work.
A-00024_AB
Shield Cup
Torch
Standoff Distance
1/8" - 3/8" (3 - 9mm)
Standoff Distance
Art # A-09342
Trigger
Trigger Release
3
4
Trigger
2
1
Trigger Release
Art# A-09341
C. Cut as usual. Simply release the trigger
assembly to stop cutting.