Miller Bobcat 250 NT, Руководство пользователя

Страница: 63 / 80

OM-4403 Page 59
SECTION 13 – MIG WELDING (GMAW) GUIDELINES
13-1. Typical MIG Process Connections Using A Voltage-Sensing Wire Feeder
Weld current can damage
electronic parts in vehicles.
Disconnect both battery
cables before welding on a
vehicle. Place work clamp as
close to the weld as possible.
Voltage sensing wire feeders are
used with constant current (CC) or
constant voltage (CV) power
sources (14 pin receptacle not re-
quired).
If using a CC or CV welding power
source without a weld output con-
tactor, use optional secondary con-
tactor.
For GMAW, use optional gas valve.
Voltage
Sensing Wire
Feeder
Constant
Current (CC)
Or Constant
Voltage (CV)
Power Source
Work Lead
Electrode Lead
Workpiece
Work Clamp Voltage
Sensing Clamp
Gun
802 488
13-2. Typical MIG Process Connections Using A Constant Speed Wire Feeder
Weld current can damage
electronic parts in vehicles.
Disconnect both battery
cables before welding on a
vehicle. Place work clamp as
close to the weld as possible.
Constant speed wire feeders are
used with constant voltage (CV)
power sources having a 14-pin re-
ceptacle.
Gun
Workpiece
Electrode Lead
Work Lead
Contactor
115V/24V
Gas
Shielding
Gas
Regulator/
Flowmeter
Work Clamp
mig 9/99 / ST-800 357-A
Constant
Voltage
(CV)
Welding
Power
Source
Constant
Speed
Wire Feeder