Chapter 3 Operation - Power Fist 8154700 Owner's Manual

Chapter 3 – Operation
Do not operate the unit when the case has been opened; improper cooling can
CAUTION
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)
Overload light
MIN/MAX switch
ON/OFF switch
1/2 switch
Power line
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.
Switch Position
MIN/MAX
MIN
MIN
MAX
MAX
Working
Current
1/2
1 25A
2 35A
1 50A
2 75A
Duty Working
Cycle Voltage
100% 13.6V
92% 15.7V
45% 16.5V
20% 17.7V
Torch cable
Grounding cable
Fig. 3-1
No-load
Voltage
20V
22V
25.5V
Table 3-1
28V
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