16
OPERATING HINTS (Cont.)
SPATTER
Before beginning to weld and
periodically during welding, the
torch nozzle must be removed and the
spatter (small globules of melted
metal) cleared from the inside of
the nozzle and the outside of the
contact tip and the gas diffuser.
Spatter buildup between the contact
tip and the nozzle can cause a short
circuit and consequently, failure
of the torch or welding machine.
The frequent use of anti-spatter
spray will help prevent the adher-
ence of spatter to the torch compo-
nents.
NOTE
DO NOT use any anti-spatter
spray when welding stainless
steel.
Restricted gas flow, holding the
torch too far from the work piece,
and the use of CO2 gas rather than
75% Argon - 25% CO2 will increase
the spatter levels.
MAINTENANCE
To ensure that this equipment
maintains its operating effi-
ciency, the following maintenance
schedule and procedures are recom-
mended. These routines should be
performed regularly by the opera-
tor.
REGULARLY - Usage and shop condi-
tions determine frequency.
1. Remove and clean the torch
nozzle and contact tip. The use
of anti-spatter compound will
reduce the adherence of spatter
and makes its removal easier.
2. Blow out the torch liner prior to
the installation of each new
spool of wire. The contact tip
and gas diffuser must be re-
moved, but it is not necessary to
remove the liner.
3. If the torch cable assembly is
bent severely, a kink may de-
velop in the steel liner. This
can cause wire feeding problems
so a new liner should be in-
stalled.
