Trigger Safety Lock; Plasma Cutting System Practices - Hobart AirForce 625 Manual

4-3. Trigger Safety Lock

4-4. 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.
1/8 in
(3.2 mm)
When doing extended (non-shielded)
cutting, maintain approximately 1/8 in
standoff between electrode and surface.
OM-926 Page 18
Trigger Locked
.
Set correct air pressure for process:
75 PSI (517 kPa) for cutting,
55 PSI (379 kPa) for gouging.
°
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.
1
Trigger Unlocked
speed is too fast or amperage is set too low.
Wt
or template for accurate cutting operations.
1 Trigger
The pilot arc starts immediately
when trigger is pressed.
DO NOT start pilot arc without cutting or
gouging as this shortens the service life
of the nozzle and electrode.
If sparks flare back from surface, this
usually is an indication that either travel
Pulling rather than pushing the torch
makes cutting easier. Use a proper guide
801 400-B / Ref. 802 878
801 397-A