Tweco 300 S Arcmaster - Manual (Page 29)

ARCMASTER ® 300 S
March 31, 2006 5-1
SECTION 5:
SET-UP FOR SMAW (STICK) AND GTAW (TIG)
Conventional operating procedures apply when using the
Welding Power Source, i.e. connect work lead directly to
work piece and electrode lead is used to hold electrode. Wide
safety margins provided by the coil design ensure that the
Welding Power Source will withstand short-term overload
without adverse effects. The welding current range values
should be used as a guide only. Current delivered to the arc
is dependent on the welding arc voltage, and as welding arc
voltage varies between different classes of electrodes, welding
current at any one setting would vary according to the type of
electrode in use. The operator should use the welding current
range values as a guide, then fi nally adjust the current setting
to suit the application.
!
WARNING
Before connecting the work clamp to the work
and inserting the electrode in the electrode
holder make sure the Primary power supply is
switched off.
CAUTION
Remove any packaging material prior to use.
Do not block the air vents at the front or rear
or sides of the Welding Power Source.
Figure 6 – 300 S Set-up