Thermal Dynamics CE CutMaster 80XL, Руководство по эксплуатации

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Manual 0-2724 5-1 SERVICE
SECTION 5:
CUSTOMER/OPERATOR
SERVICE
5.01 Introduction
This Section describes basic maintenance procedures per-
formable by operating personnel. No other adjustments
or repairs are to be attempted by other than Thermal
Dynamics Trained personnel.
For major troubleshooting and parts replacement pro-
cedures refer to CutMaster 80XL Power Supply (CE) Ser-
vice Manual 0-2725.
5.02 General Maintenance
WARNING
Disconnect primary power to the system before dis-
assembling the torch, leads, or power supply.
The only routine maintenance required for the power sup-
ply is a thorough cleaning and inspection, with the fre-
quency depending on the usage and the operating envi-
ronment.
Clean and maintain the power supply per Appendix 3,
Maintenance Procedures.
To clean the unit, open the enclosure (refer to Section 5.05-
A, Opening Enclosure) and use a vacuum cleaner to re-
move any accumulated dirt and dust. The unit should
also be wiped clean. If necessary, solvents for cleaning
electrical apparatus may be used.
5.03 Common Operating Problems
WARNINGS
Disconnect primary power at the source before dis-
assembling the power supply, torch, or torch leads.
Frequently review the Important Safety Precau-
tions (Section 1). Be sure the operator is equipped
with proper gloves, clothing, eye and ear protec-
tion. Make sure no part of the operator’s body
comes into contact with the workpiece while the
torch is activated. Sparks from the cutting process
can cause damage to coated, painted, and other
surfaces such as glass, plastic and metal.
Handle torch leads with care and protect them from
damage.
A. Piloting
Piloting is harder on parts life than actual cutting because
the pilot arc is directed from the electrode to the tip rather
than to a workpiece. Whenever possible, avoid excessive
pilot arc time to improve parts life.
B. Torch Standoff
Improper standoff (the distance between the torch tip and
workpiece) can adversely affect tip life as well as shield
cup life. Standoff may also significantly affect the bevel
angle. Reducing standoff will generally result in a more
square cut.
C. Edge Starting
For edge starts, hold the torch perpendicular to the work-
piece with the front of the tip at the edge of the work-
piece at the point where the cut is to start. When starting
at the edge of the plate, do not pause at the edge and
force the arc to "reach" for the edge of the metal. Estab-
lish the cutting arc as quickly as possible.
D. Direction of Cut
In the torches, the plasma gas stream swirls as it leaves
the torch to maintain a smooth column of gas. This swirl
effect results in one side of a cut being more square than
the other. Viewed along the direction of travel, the right
side of the cut is more square than the left (Refer to Fig-
ure 5-1). To make a square-edged cut along an inside
diameter of a circle, the torch should move counterclock-
wise around the circle. To keep the square edge along an
outside diameter cut, the torch should travel in a clock-
wise direction.