OM-235 281 Page 22
SPOOL GUN
MIG GUN
3-17. Installing Optional DP 3545 Spool Gun To Welding Power Source
242 143-A / 242 154-A
!
Turn Off unit, and disconnect
input power.
1
Drive Assembly
2
Spool Gun
3
Gun Securing Thumbscrew
4
Gun End
Loosen thumbscrew. Insert gun
end through opening until it bottoms
against drive assembly. Tighten
thumbscrew.
.
Spool gun must be inserted
completely to prevent leakage
of shielding gas.
5
Gun Trigger Plug
Insert plug into receptacle, and
tighten threaded collar.
6
Spool Gun/MIG Gun Switch
Place switch in Spool Gun position.
7
Polarity Change Over
Terminal Block
To make proper polarity connection
see Section 3-7.
Close door.
8
Wire Feed Speed Control
Wire feed speed is controlled by
welding power source Wire Feed
Speed control (see Section 4-1).
9
Voltage Control
Arc voltage is controlled by welding
power source Voltage control (see
Section 4-1).
10 Trigger
Press trigger to energize welding
power source contactor, start
shielding gas flow, and begin wire
feed.
7
9
8
CB2
CB1
SPOOL GUN
MIG GUN
6
1
3
5
4
10
2