Need help to connect wiring correctly.
by Walter Banta
Emglo wheelbarrow compressor
I recently purchased one of your older wheelbarrow compressors, and I can find no model number affixed. The unit would be described as follows:
1 Wheelbarrow type/two cylindrical tanks
2. Has dual voltage, A.O. Smith motor part no. 7-196138-02, Serial 056085M
3. Has a pressure switch
The power cord attached to the pressure switch has a 220 volt plug, and another cable "bridges" between the pressure switch and the dual voltage switch.
The white wire of the "bridge" cord connects to the "purple" wire in the dual voltage switch.
The black wire of the "bridge" cord connects to the "Yellow-black" wire in the dual voltage switch.
The green wire of the "bridge" cord is grounded to the housing of the dual voltage switch.
Question: Because the power cable is presently fitted with a 220 v. plug, I would just as soon leave it there and build an adapter cable for 115 volt connection -
1. When I throw the dual voltage switch to 115 volts -
Can I connect the black lead from 115 volts to the black lead in the 220 volt plug
Can I connect the white lead from the 115 volts to the white lead on the 220 plug
Can I connect the green lead from the 115 volts to the green lead on the 220 volt plug
In other words, once the dual voltage switch is turned to 115 volts, can I simply connect 115 volts to the black/white leads that originally carried the two legs of 115 into the 220 plug?