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Wild Bill
 
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Default Need help wiring single phase motor

You might want to have a look at the Oriental Motor wiring diagrams if you
can't determine the wiring from the Bodine site wiring info.

The OM capacitor run AC motors use a 3-wire connection.
AC to Lead 1
AC to Lead 2 and one capacitor terminal
Second capacitor terminal to Lead 3

While looking at various sizes of the OM motors, you'll notice that the
capacitor value (uF) incerases with motor size (wattage). Their very small
motors require a cap value of 1 or 2 uF, the larger ones require a 10 to 20
uF cap value (40 to 60 motor wattage).
The capacitor value will affect the motor speed, and I assume the wrong
value would cause excessive heat.
For 120VAC motors, the caps are typically rated at 250V or 277V AC.
The small value capacitors are the same type that are used in many ceiling
fans, and can be found at many electrical and hardware retailers.

If there is no capacitor value info on the motor plate, I wouldn't know what
value to suggest if your Bodine motor is actually 1/3 HP.

When encountering mystery motors that you can't find specific data on,
sometimes it requires opening the motor case to see what's inside. Some
dealers don't know exactly what they're selling.
You might try comparing all of the specifications on the motor plate to a
different Bodine motor, or another manufacturer's motor. There should be a
amps or wattage value on the plate, which could be used to determine the
output power.

WB
...............

"Patrick C." wrote in message
om...
I picked up a single phase motor at a surplus shop and can't get it to
work correctly. It's a Bodine 120v, 1/3 hp gear motor, and does not
have the start or run capacitors included. The model number isn't
listed on Bodine's site so I'm guessing it's an old one or a special
application model. It has four leads- white, red, blue, and ground.
The brief 'instructions' from the surplus shop say to wire it "White
to AC, Blue to Capacitor, Red to AC and Capacitor", but when I did
this it only turned about 1/6 the listed speed. Can anyone tell what
I'm doing wrong? Should the AC and motor leads go to the opposite
sides of the capacitor? Thanks for any help.