Do not operate the unit when the case has been opened; improper cooling can
damage the parts. Make sure all side panels are properly closed.
When welding, always wear a welding helmet, gloves and other guards.
3.1
Layout drawing of control panel (fig. 3-1)
3.1.1 ON/OFF switch.
OFF – means power has been shut down.
ON – means power is supplied to the main transformer and control circuit.
3.1.2 MIN/MAX switch.
Located on the front panel, used in conjunction with 1/2 switch.
See fig. 3-1 for 8154700, and fig. 3-2 for 8154718.
8154700 Comparison table - output adjusting switch position and output current.
Table 3-1
Chapter 3 – Operation
Page 9
CAUTION
Overload light
MIN/MAX switch
ON/OFF switch
1/2 switch
Power line
Torch cable
Grounding cable
Switch Position
Working
Current
Duty
Cycle
Working
Voltage
No-load
Voltage
MIN/MAX
1/2
MIN
1
25A
100%
13.6V
20V
MIN
2
35A
92%
15.7V
22V
MAX
1
50A
45%
16.5V
25.5V
MAX
2
75A
20%
17.7V
28V
Fig. 3-1
