Tweco 220 VAC 50Hz Drag-Gun - Manual (Page 17)

Operating Manual 0-2737 13 DRAG-GUN Plasma Cutter (Australia)
2. Position the torch with the shield cup facing upward
and unscrew and remove the shield cup from the torch
head assembly (The shield cup holds the tip, gas dis-
tributor, and electrode in place).
3. Remove the tip, gas distributor, and electrode.
4. Install the electrode, gas distributor, and tip. Replace
worn parts, as necessary.
5. Install and hand tighten the shield cup until it is seated
on the torch head. If resistance is felt when installing
the cup, check the threads and parts configuration
before proceeding.
CAUTION
Improper assembly or use of nonstandard torch
parts can cause the torch head to short and may
overheat or damage the torch. Check the torch for
proper assembly and appropriate front end torch
parts.
F F F F F. W . W . W . W . Work Cable Connection ork Cable Connection ork Cable Connection ork Cable Connection ork Cable Connection
Best results will be obtained with a good work cable con-
nection to the workpiece. Check for a solid and clean
work cable connection. The area must be free from rust
and paint.
NOTE
Connect clamp to the main part of the workpiece,
not the part being removed.
Make a solid work cable
connection to the work-
piece or cutting table
A-02022
Figure 4-3 Work Cable Connection
5.0 OPERA 5.0 OPERA 5.0 OPERA 5.0 OPERA 5.0 OPERATION TION TION TION TION
WARNINGS
Disconnect primary power at the source before dis-
assembling the power supply or torch.
Frequently review the Important Safety Precau-
tions (page 1). Be sure the operator is equipped with
proper gloves, clothing, eye and ear protection.
Make sure no part of the operator’s body comes into
contact with the workpiece while the torch is acti-
vated.
CAUTION
Sparks from the cutting process can cause damage
to coated, painted, and other surfaces such as glass,
plastic and metal.
CAUTION
EXCEEDING DUTY CYCLE RATINGS will
cause the thermal overload protection circuit to
become energized and shut down output until the
unit cools to normal operating temperature. CON-
TINUAL EXCEEDING OF DUTY CYCLE
RATINGS
can cause damage to the cutting power
source. Do NOT exceed indicated duty cycles.