• Scam Alert. Members are reminded to NOT send money to buy anything. Don't buy things remote and have it shipped - go get it yourself, pay in person, and take your equipment with you. Scammers have burned people on this forum. Urgency, secrecy, excuses, selling for friend, newish members, FUD, are RED FLAGS. A video conference call is not adequate assurance. Face to face interactions are required. Please report suspicions to the forum admins. Stay Safe - anyone can get scammed.

SB Model A, GE motor wiring confusion

Trent ks

Hi everyone! I am fairly new to the forum, it's been a great help so far to which I am grateful. I recently picked up a SB model A, the previous owner had bypassed the R1 Furnas drum switch. It came with a GE 1/4HP, four wire, 1 phase motor, and only L3 and L4 were connected which caused the motor to get stuck until it was pushed by hand.

I would prefer a 1/2HP motor but it will take me a little while to find one, so I am getting things started with what I have.

I have found plenty of information on other forums however they are slightly different versions of the same motor with more leads, capacitor start. The closest diagram I was able to find is the one below, but I'm not sure which leads are T5 and T8, as mine only as L1 . L2 . 3 . 4

General Electric Motor
HP: 1/4
PH: 1
RPM: 1725
Volts: 110
Amp: 4.8
Type: KH

Any help greatly appreciated!


  • 20170614_150118.jpg
    84.9 KB · Views: 9
  • WEBB1.jpg
    29.2 KB · Views: 10
  • 20170614_150108.jpg
    91.6 KB · Views: 9
  • 20170614_150249.jpg
    93 KB · Views: 9

Trent ks

After doing some research on AC motors I discovered that with a 4 wire single phase motor there are two wires for the starter coil and two wires for the running coil. So I connected L1 and 3 to Hot and L2 and 4 to Neutral. The motor starts instantly without getting stuck! To reverse it all I had to do was switch the polarity of the starter coil. I'll post the wiring of the switch soon in case someone has the same problem as me in the future.