TM-260 273 Page 19
TM-260273 Page
Handler 190
AC Or DC Control Circuits
Weld Current Circuit
Welding Wire
Work
14
(Electrode)
12
Main
Transformer
T1
13
Rectifier SR1
15
Stablizer Z1
Capacitor C1
16
Polarity
Changeover
Block
Integrated
Wire Drive
Motor
11
8
9
Thermostat
TP1
Gun Trigger
Receptacle RC7
10
Wire Speed
Control R2
Spool Gun
Wire Drive
Motor
18
16 Polarity Changeover Block
Terminals allow changing between
DCEP and DCEN processes.
17 Wire Drive Selector Switch S3
Selects operation of integrated wire
drive motor (11) or spool gun wire
drive motor (18).
18 Spool Gun Wire Drive Motor
Feeds wire at speed set by R2.
Motor is enabled when Wire Drive
Selector Switch S3 is set to Spool
Gun position.
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