Plasma Cutting System Practices - Miller Spectrum 375 Owner's Manual

5-4. Plasma Cutting System Practices

Always connect work clamp to a clean,
paint-free location on workpiece, as close to
cutting area as possible.
°
90
Maintain approximately a 90
workpiece surface for proper cutting results.
1/16 in.
(1.6 mm)
When doing extended (non-shielded)
cutting, maintain approximately 1/16 in.
standoff between electrode and surface.
OM-255 590 Page 20
.
A complete Parts List is available at www.MillerWelds.com
°
Sparks should pass through the workpiece
angle to the
and out the bottom when cutting.
DO NOT put pressure on shield when
drag cutting; instead, slide shield along
the surface for proper cutting results.
DO NOT start pilot arc without cutting or
gouging as this shortens the service life
of the nozzle and electrode.
usually is an indication that either travel
speed is too fast or amperage is set too low.
Wt
makes cutting easier. Use a proper guide
or template for accurate cutting operations.
! The pilot arc starts immediately
when trigger is pressed.
If sparks flare back from surface, this
Pulling rather than pushing the torch
Ref. 254 087-A