Jim S.
Hot Rolled
- Joined
- Sep 4, 2003
- Location
- South Carolina
I have an older (1950s - 1960s ?) capacitor start, two-voltage single phase motor that I can not figure out the correct wiring. I have the high-low connection diagram but the wire coloring does not match (possibly somewhat faded but unlikely) the diagram and I am nervous about guessing and letting smoke out of the windings.
Can anyone help me decipher how to connect this to high voltage?
The wiring all looks OEM and appears unmodified. There should be four colored wires - black, yellow, red and green; and two numbered wires - tagged 1 and 2. The problem lies with the colored wires. None of the colors are clear (these have a cloth braided outer sheath), even inside the housing. If I were to guess at the existing colors, I would say white, yellow, black and red. Three of those match but that leaves a white where there should be a green, and it certainly does not look that faded. (the two numbered wires are clearly tagged with a metal clip.
None of the wires is shorted to ground. As I color them, the yellow - red and white - black show continuity to each other but to nothing else.
The four colored wires all go straight to the field winding. Number 2 wire goes to the winding and number 1 goes first through a capacitor then to the winding.
The motor shows no evidence of damage and I am told it was running before I got it but the connections were undone. See photos of wiring diagram and motor nameplate.
Thanks for any help.
Jim
Can anyone help me decipher how to connect this to high voltage?
The wiring all looks OEM and appears unmodified. There should be four colored wires - black, yellow, red and green; and two numbered wires - tagged 1 and 2. The problem lies with the colored wires. None of the colors are clear (these have a cloth braided outer sheath), even inside the housing. If I were to guess at the existing colors, I would say white, yellow, black and red. Three of those match but that leaves a white where there should be a green, and it certainly does not look that faded. (the two numbered wires are clearly tagged with a metal clip.
None of the wires is shorted to ground. As I color them, the yellow - red and white - black show continuity to each other but to nothing else.
The four colored wires all go straight to the field winding. Number 2 wire goes to the winding and number 1 goes first through a capacitor then to the winding.
The motor shows no evidence of damage and I am told it was running before I got it but the connections were undone. See photos of wiring diagram and motor nameplate.
Thanks for any help.
Jim