Hafcanadian
New Member
My mother’s (now my wife’s) old cast iron exercise bike has a high/low switch that I assume controls its motor’s speed. After taking it out of 25 years’ storage, and thinking it the bike’s on/off switch, I flipped the toggle initially only to find it totally loose and no response electrically. The wife wants me to just take it to Goodwill, but I’d like to at least replace the switch so perhaps I could use it myself even if she doesn’t, especially in winter when at 77 I’m too sedentary.
I finally figured out how to get the bad switch out, but am not experienced enough electrically to know what to replace it with, SPST or SPDT, or how the bike’s two switches interact. Stats are stamped on the old switch but not a model/part number. It has 3 poles, but is it the SPST I think it is, simply on/off, for motor speed?
120v power feeds directly to the motor. White neutrals are spliced in the switch box, and a green motor ground wire fastens in the box wall. A red wire comes from the motor to the left post of the bad switch, and a black motor wire goes to its right post. Another black wire comes from the motor to a box (an adjoining second switch) that toggles the “Start/Stop” of the bike, and a short black wire goes between that and the middle post of the broken switch. Hopefully pix will help your understanding.
I just need to know which switch to order. The old one is by Carling. 120v 15a 240v 20a 3/4HP.
-Joel
I finally figured out how to get the bad switch out, but am not experienced enough electrically to know what to replace it with, SPST or SPDT, or how the bike’s two switches interact. Stats are stamped on the old switch but not a model/part number. It has 3 poles, but is it the SPST I think it is, simply on/off, for motor speed?
120v power feeds directly to the motor. White neutrals are spliced in the switch box, and a green motor ground wire fastens in the box wall. A red wire comes from the motor to the left post of the bad switch, and a black motor wire goes to its right post. Another black wire comes from the motor to a box (an adjoining second switch) that toggles the “Start/Stop” of the bike, and a short black wire goes between that and the middle post of the broken switch. Hopefully pix will help your understanding.
I just need to know which switch to order. The old one is by Carling. 120v 15a 240v 20a 3/4HP.
-Joel
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