TM-258 267 Page 17Handler 140
AC Or DC Control Circuits
Weld Current Circuit
Welding Wire
Work
14
(Electrode)
12
Main
Transformer
T1
13
Rectifier SR1
15
Stablizer L1
Capacitor C1
16
Polarity
Changeover
Block
Wire Drive
Motor
11
8
9
Thermostat
TP1
Gun Trigger
Receptacle RC3
10
Wire Speed
Control R2
14 Output Capacitor C1
Smooths DC weld voltage from
rectifier SR1.
15 Stabilizer L1
Smooths DC weld current.
16 Polarity Changeover Block
Terminals allow changing between
DCEP and DCEN processes.
17 Over Temperature Light PL1
Indicates that the transformer is
overheated.
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