36
9 Maintenance and cleaning EX-TRAFIRE
®
105HD
Table 13 Parts inspection
Consumable Check for Action
Shield
Orifice is not round. Replace the shield.
Spatter in the gap
between the shield and
the nozzle.
Clean the shield and
nozzle surface.
Retaining cap
Heat damage, cracks,
breaks, damaged
threaded connections,
clogged gas holes.
Replace the retaining
cap.
Nozzle Orifice is not round. Replace the nozzle.
Swirl ring
Outer surface is
damaged or dirty.
Clean or replace the
swirl ring.
Electrode restriction due
to dirt, debris, or damage
on interior surfaces.
Clogged or damaged
gas holes.
Electrode
Pit depth of hafnium is
deeper than 0.6 in
(1.6 mm).
Replace the
electrode.
Cutting torch
Fire or arc damage
inside.
Replace the cutting
torch.
Worn or damaged
threaded connections.
Burned or missing
material.
Cutting torch is damaged
or dirty.
Damaged O-ring. Replace the O-ring.
Dry O-ring. Apply a thin layer of
silicone grease.