Hobart Welding Products 120 User Manual

OM-210 088 Page 12

Ref. ST-802 024

1

Drive Assembly

2

Gun Securing Thumbscrew

3

Gun End

Loosen thumbscrew. Insert gun
end through opening until it bottoms
against drive assembly. Tighten
thumbscrew.

4

Gun Trigger Leads

Insert leads, one at a time, through
small grommet on front panel. Con-
nect female friction terminals to
matching male terminals in unit.
Polarity is not important.

Close door.

4

1

2

3

1

Lead Connections For Direct
Current Electrode Positive
(DCEP)

2

Lead Connections For Direct
Current Electrode Negative
(DCEN)

Always read and follow wire
manufacturer’s recommended po-
larity, and see Section 3-3.

Close door.

1

Ref. ST-802 024

2

GMAW – Soild wire with shield-
ing gas

DCEP – Reverse polarity

Connect to positive (+) out-
put terminal

Connect to negative (–) output
terminal

FCAW – Self-shielding wire –
no shielding gas

DCEN – Straight Polarity

Connect to negative (–)
output terminal

Connect to positive (+) output
terminal