Marathon 1/2 hp electric motor

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  #1  
Old 04-02-13, 08:52 PM
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Marathon 1/2 hp electric motor

Does anyone know how to change the rotation on this type motor?
 
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Old 04-02-13, 08:55 PM
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There should be a wiring diagram on the motor or in on the junction cover.

Does the motor say reversible on it ?
Is there a model number on the motor you can post ?
 
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Old 04-02-13, 09:00 PM
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mod.#rvl48s170a8a p no diagram but says---rot. c.w. ope. not knowing what this means
 
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Old 04-02-13, 09:15 PM
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I can not find that model number at Marathon. Please double check it.

Maybe a part # listed.
 
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Old 04-02-13, 09:46 PM
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.: Marathon Electric Motors - Motor Product Search :.

RVL48S17048A P

I cannot find that model number either. The link above is the Marathon motor locator. See if you match a motor number to it.

The reversing process.....if it is a reversible motor.....is just exchanging two wires. If all all else fails......take a picture of motor plate and post it...... or even a picture of inside the wiring compartment
 
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Old 04-03-13, 02:12 PM
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Here are some pictures of Motor Label...
 
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Old 04-03-13, 02:36 PM
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That motor is not readily reversible. You could take it all apart and reverse the leads on the starting winding to get it to turn the other direction.
 
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Old 04-03-13, 09:36 PM
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reversing the motor

after i take apart, the wires i will have to change ,will they have terminals or will i have to cut and solder. is there a danger of getting a short if i change the wrong wire.
 
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Old 04-03-13, 10:21 PM
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They will probably not have terminals. You would cut and wirenut or solder and insulate.

Can you pull the power wire out of the junction box or post the colors of the wires you see in there ? (excluding your white, black and green)

The must be a private branded model number on that motor......it doesn't show up in the Marathon lineup.
 

Last edited by PJmax; 04-03-13 at 10:40 PM.
  #10  
Old 04-03-13, 11:31 PM
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after i take apart, the wires i will have to change ,will they have terminals or will i have to cut and solder.
Won't know until you get it apart.

is there a danger of getting a short if i change the wrong wire.
It will be very difficult to get the incorrect wires.
 
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Old 04-04-13, 10:20 AM
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Picture of motor broken down

Here is a couple of pics, hope they will be of help. if i change the two wires that are soldered, it would be like turning the plug over.
 
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Last edited by runt61; 04-04-13 at 10:49 AM.
  #12  
Old 04-04-13, 12:25 PM
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Going to need pictures of where the wires connect to the coils (windings) in the motor itself. Please make sure they are in focus.
 
  #13  
Old 04-04-13, 06:56 PM
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changing rotation

will have to cut paper off windings to show further contacts
 
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Old 04-04-13, 07:26 PM
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Gray is one of the start winding colors. Blue is a definite run color.

That leaves red and yellow. If you have an ohmmeter or any kind of continuity checker.
Disconnect yellow wire from slide on terminal so that red and yellow don't touch.
check from .......... gray to red ................. gray to yellow

One of those combinations will show a short or meter movement and the other should show nothing.

Let me know what you find
 
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Old 04-04-13, 07:48 PM
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changing rotation

OK.---gray to red shows condu.or short -----gray to yellow is open
 
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Old 04-04-13, 07:51 PM
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Excellent job. Then we know the following:

Gray and red is the start winding and
blue and yellow is the run winding.

Put the yellow back on the same terminal it came off of.

You will need to reverse the gray and red wires.
Looks to be easily accomplished with a soldering iron.
 
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Old 04-04-13, 08:10 PM
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change rotation

PJ--- you got your crap together, works like it should. THANKS A BUNCH
 
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Old 04-04-13, 08:12 PM
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Thanks....good job at your end too.
 
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