Capacitor wiring help.

[J Sonic]

I have a industrial sewing machine that the capacitor had come disconnected during shipping. It has a on / off toggle switch, the one side was tied into the red wire but I don't know where the other side of the capacitor is wired to. This came out of a old textile mill. It is single phase 220volt motor. The three phase was removed. It is a singer machine motor. The capacitor is in the box with the switch.

[Al_The_Man]

What is the other side of the cap connected to, the switch? it is probabally a single phase, cap start motor.
How is the AC input wired with respect to the switch?
Al.

[J Sonic]

The motor is 110 not 220 sorry. The switch is breaking the white wire. Ground (grn) is mounted to mounting box. Black is tied to black from motor,this is the incoming wiring side. Now as to the motor side of the wiring, blk to blk side coming in, red from motor to capacitor, white to switch, other lead of capacitor goes where? maybe to black lead?

[Al_The_Man]

By rights the black or hot wire should be switched, it sounds like they are switching the neutral.
Anyway you should have at least three wires coming out of the motor, (or four to reverse).
It sounds like you have a white and black into the motor, that is the run winding, then if you have the red wire out of the motor to the cap.
If only three leads out of the motor you need to know how the start winding is connected, measure the resistance of the red wire to the other two motor leads and then connect the other side of the cap to the wire with the highest resistance.
You have to be aware that all reading are going to be very low, so you have to differentiate between to make sure you get the lowest reading.
Al

[J Sonic]

Thanks Al,
I will see which is what on the resistance. Should I change the Black lead to the switch instead of the white, as you said the black should be the switched lead?