Electric Motors/Delco Motor Wiring
QUESTION: I have the following motor:
Delco Rodframe, model M440A1
1/4 HP, Type SP, 110V, 60 Cycles, RPM 1725, 4.0 Amps
Made in Canada by McKinnon Industries, Ltd.
Please refer to the attached photo; I labelled and disconnected all wires and found the following resistances:
Wire on #2 terminal had about 29 ohms to the light colored wire on #1 terminal. Wire on #4 terminal had about 2 ohms to the dark colored wire on #1 terminal. No other continuities were found but these resistances seemed to vary as if some capacitor was charging and discharging.
The motor came on a jointer but was disconnected. I would like to know where to attach NEUTRAL, HOT and GROUND. Thank you.
ANSWER: Seems like term 1 is common
110V olt motor?
N to 31
L2 to #2 & 4
if not split the wires on #1 and then measure the resistance .
with 4 wires should have 2 circuits.
---------- FOLLOW-UP ----------
QUESTION: I'm sorry, but I don't understand the answer.
The motor is a 110V motor.
You said N to 31, but there is no 31 (see photo).
You said L2 to #2 &4, but is L2 not NEUTRAL?
Where should the HOT (L1) be connected?
I do have two circuits as stated in my 2nd paragraph.
l1 or L2 can be HOT. N is neutral I wanted to hit the number sign but didnt hit the shift key so it went to 31
should be #1
Try connecting Neutral to #1 which I think is common.
Then L1 (HOT) goes to 2 and 4.
The 2 circuits should be a run winding and start winding.
The start winding has a higher resistance lets say 29 ohms.
The run winding will be approx. 20 or less ohms.
You measured 2 ohms which seems like the the circuit through the start switch inside the motor.
Thats why I asked you to open the common point and see if there 2 circuits other than the 2 ohm one.