SECTION 3
OPERATION
14
NOTE
When replacing the nozzle, always inspect the elec-
trode for wear. If less than 11/16" of electrode shaft is
remaining, replace the electrode. If the electrode is
used beyond this recommended wear limit, damage to
the torch and power source may occur. Nozzle life is
also greatly reduced when using the electrode below
the recommended limit. Refer to Figure 3-3.
POWER
SWITCH
AIR FILTER - REGULATOR
POWER
CORD
AIR CHECK
POWER
LAMP
FAULT
LAMP
WORK CABLE
CONNECTION
SAFETY
INTERLOCK
SWITCH
AIR HOSE
CONNECTION
OUTPUT
CURRENT
CONTROL
LOCK-IN
TORCH GAS HOSE
CONNECTION
TORCH SWITCH
CONNECTION
AIR
SUPPLY
Figure 3-1. PCM-750i Controls
Figure 3-2. Recommended Torch Angle of 5° to 15°
11/16"
New
Acceptable
WRONG
Figure 3-3. Electrode Wear Limit
PILOT ARC
CONNECTION
F.
For rapid re-starts, such as grate or heavy mesh
cutting, do not release the torch switch. In the
postflow mode, the arc can be re-started immedi-
ately by depressing the torch switch. This avoids
the 2-second preflow portion of the cutting cycle.
Summary of Contents for PCM-750i
Page 25: ...25 Figure 5 1 PCM 750i Series A Schematic Diagram 460 V 3 Phase Input D 35511 A ...
Page 26: ...26 Figure 5 2 PCM 750i Series A Wiring Diagram 460 V 3 Phase Input D 35510 A ...
Page 27: ...27 Figure 5 3 PCM 750i Series A Schematic Diagram 230 V 1 Phase Input D 35507 A ...
Page 28: ...28 Figure 5 4 PCM 750i Series A Wiring Diagram 230 V 1 Phase Input D 35506 A ...
