SECTION 5
PCM-875A Plasmarc Cutting System
Maintenance
5-6
5.3 PT-20AMX Plasmarc Torch
WARNING
!
Before any maintenance is attempted on
this torch, make sure the POWER SWITCH
on the console is in the OFF position and
the PRIMARY INPUT POWER is
DE-ENERGIZED.
5.3.1 General
1. Periodically check heat shield, electrode holder
assembly, electrode nozzle seat, and electrode
insulator. Replace if worn or damaged.
2. Apply a thin film of lubricant 17672 (supplied in
spare parts kit) to O-ring. Check O-ring for damage
whenever shield is removed. Replace if necessary.
3. Power and pilot arc cables should be inspected
periodically. If cuts through protective sheath or if
gas leaks are noted, replace damaged component.
