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TROUBLESHOOTING & REPAIR
F-101
F-101
RANGER 305D
This is the typical DC voltage gener-
ated from a properly operating
machine. Note that each vertical divi-
sion represents 20 volts and that
each horizontal division represents 1
millisecond in time.
The machine was loaded with a resis-
tance grid bank to 300 amps at 28
volts.
NOTE:
Scope probes are connected
at weld output terminals.
SCOPE SETTINGS
Volts/Div.....................20V/Div.
Horizontal Sweep .....1 ms/Div.
Coupling.............................DC
Trigger.........................Internal
NORMAL WELD VOLTAGE WAVEFORM (WIRE CV)
MACHINE LOADED TO 300 AMPS AT 28 VOLTS
0 volts
20V
1ms
