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LF-72/74
OPERATION
BB-4 BB-4
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ITEM DESCRIPTION
1 Wire Feed Speed Knob.
2
Location for Optional
Remote Voltage Control
(See Accessory Section For Kit Number).
3
Location for Optional Burnback and Postflow Timer Kit (See Accessory Section For Kit Number).
4 Thermal LED, Motor Overload.
5 Cold Feed - Gas Purge Switch, press the switch up to feed wire with weld output off. Press the
switch down for gas flow with weld output off.
6 2 step - Trigger Interlock switch.
7 Gun Receiver Bushing.
8 Trigger Connector 5-pin amphenol for connecting the MIG gun trigger. See Installation Section
for detail.
FRONT PANEL CONTROLS AND CONNECTIONS
FIGURE BB.1 CASE FRONT CONTROLS
2
3
4
5
6
1
7
8