Inspection, Cleaning And Replacement Of Consumables - ESAB PT-38 Manuel D'instruction

SECTION 5
5.2 Inspection, Cleaning and Replacement of Consumables
Torch Body
Assembly
Electrode/Torch
Piston
Electrode
Nozzle and
Retaining/
Shield Cup
Disassemble the front end of the PT-38 as follows:
1. Position torch head in a downward direction and remove the retain-
ing/shield cup by unscrewing in a counter-clockwise direction. The
nozzle will drop from the torch head assembly and remain in the
retaining/shield cup.
The nozzle and electrode will generally wear at the same rate. For
Body Seat
When inspecting consumables visually check torch body assembly.
2. Remove the nozzle by tilting retaining/shield cup upside down and
pushing nozzle out. Inspect nozzle for wear. The nozzle orifice should
be round at both the entrance and the exit. If the nozzle orifice is
worn in an oval shape or shows other signs of damage at either end,
it should be replaced. The inside of the nozzle may have light gray
deposits from the electrode. These may be removed with steel wool
but care must be taken to remove all traces of the steel wool after-
ward.
Retaining/Shield Cup
Nozzle
NEW
Note:
best performance, replace together.
Note:
Replace torch body assembly if worn or damaged.
WORN
102
MAINTENANCE