Section 4 − Operation; Controls - Hobart Welders DP 3545-20 Consignes De Sécurité

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4-1. Controls

SPOOL GUN
3
MIG GUN
4
5
6
SECTION 4 − OPERATION
2
1
CB2
SPOOL GUN
MIG GUN
CB1
.
Spool Gun/MIG Gun switch-
must be in Spool Gun position
for spool gun to operate.
1
Shielding Gas Cylinder
For shielding gas connections, see
welding power source Owner's
Manual.
2
Valve
Open valve on cylinder just before
welding.
Close valve on cylinder when
finished welding.
3
Spool Gun/MIG Gun Switch
.
Switch must be set in Spool
Gun position for spool gun to
operate.
4
Trigger
Press trigger to energize welding
power source contactor, start
shielding gas flow, and begin wire
feed.
5
Wire Feed Speed Control
Wire feed speed is controlled by
welding power source Wire Speed
control (see welding power source
Owner's Manual or door chart for
appropriate setting).
6
Voltage Control
Arc voltage is controlled by welding
power source Voltage control (see
welding power source Owner's
Manual
or
door
chart
appropriate setting).
.
To purge shielding gas line, set
gun selection switch (item 3) to
the MIG Gun position.Press
spool gun trigger to energize
gas valve. Shielding gas will
flow, but spool gun will not feed
wire. Hold trigger in for several
seconds to purge gas line.
Return gun selection switch to
the Spool Gun position before
welding.
S-621-C / 242 154-A / 242 143-A
OM-241 877 Page 13
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