Tweco 15XC Merlin - Manual (Page 46)

OPERATION 4-12 Manual 0-2251
4.5 PLASMA CUTTING OPERATION
Be sure the operator is equipped with proper gloves,
clothing, eye and ear protection and that all precautions at
the front of this manual have been followed. Make sure no
part of the operator’s body comes in contact with the
workpiece when the torch switch is pressed.
WARNING
CAUTION The sparks from the cutting process can cause damage to
coated, painted or other surfaces such as glass, plastic, and
metal.
Do not interchange parts. Make sure both the tip and
electrode in the torch correspond with the plasma gas and
secondary being used. (See Section 4.3, Torch Parts Selec-
tion). CAUTION
WARNING
Disconnect primary power to the system before
disassembling the torch, leads, or power supply.
The suggestions below should be followed in all cutting
and gouging operations:
1. Wait five minutes before setting the ON/OFF switch to
OFF after operation. This allows the cooling fan to run
to dissipate operating heat from the power supply.
2. For maximum parts life, do not operate the pilot arc any
longer than necessary.
3. Use care in handling torch leads and protect them from
damage.
4. In continuous cutting applications using CO 2 , it is often
necessary to manifold four to six cylinders together to
maintain adequate flow at operating pressures.
FREQUENTLY REVIEW THE SAFETY PRECAUTIONS
AT THE FRONT OF THIS MANUAL.
It is not enough to simply move the ON/OFF switch on
the unit to OFF position when cutting operations have
been completed. Always open the power supply discon-
nect switch five minutes after the last cut is made.
NOTE
WARNING