Which motor in picture and how to repair it?

Discussion in 'General Electronics Chat' started by RRITESH KAKKAR, Jan 7, 2016.

Thread Status:
Not open for further replies.
  1. RRITESH KAKKAR

    Thread Starter Senior Member

    Jun 29, 2010
    2,831
    89
    Hello,
    The washing machine was not working spinning cloth dryer so, technician was called and replaced the motor now it is working
    he said motor is damaged may be due to water fall in it.
    please have look on motor and tell which type is this and how to repair it?
    The motor can't be open due to lock in it.
     
  2. jpanhalt

    AAC Fanatic!

    Jan 18, 2008
    5,675
    899
    If the bearings are bad, or any other internal part for that matter, it cannot be repaired because it cannot be opened as stated in your post. Given that, what difference does it make what type of motor it is?
    John
     
  3. RRITESH KAKKAR

    Thread Starter Senior Member

    Jun 29, 2010
    2,831
    89
    The rotation is free so, no change of bearing problem.
    the worker said it is damage by water .
    is it single phase motor or universal there is no capacitor i think.
     
  4. RRITESH KAKKAR

    Thread Starter Senior Member

    Jun 29, 2010
    2,831
    89
    Actually i am studying it for learning.
     
  5. RRITESH KAKKAR

    Thread Starter Senior Member

    Jun 29, 2010
    2,831
    89
  6. nerdegutta

    Moderator

    Dec 15, 2009
    2,515
    785
  7. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    8,741
    759
    You can't repair it.
    You have no knowledge on motors.
    The picture shows rust as if water leaked into motor.
    The capacitor is separate.
    Water might have damaged the wiring/winding or the bearing. A bad bearing will work free, but when powered it will stall the motor
     
  8. RRITESH KAKKAR

    Thread Starter Senior Member

    Jun 29, 2010
    2,831
    89
    There is lot of motors.
    Why china lead in manufacturing in world.
     
  9. nerdegutta

    Moderator

    Dec 15, 2009
    2,515
    785
    Ask this question when you understand/ have repaired the motor. You're drifting off-topic!
     
  10. RRITESH KAKKAR

    Thread Starter Senior Member

    Jun 29, 2010
    2,831
    89
    No, but i should learn it as i am EEE
     
  11. RRITESH KAKKAR

    Thread Starter Senior Member

    Jun 29, 2010
    2,831
    89
    How should i start working in motor to get good career?
     
  12. RRITESH KAKKAR

    Thread Starter Senior Member

    Jun 29, 2010
    2,831
    89
    I have this motor also and used to.
    Can i learn how to wind motor from it??

    link
     
  13. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,507
    2,367
    I would refute that, it most likely is riveted together, if so it is a simple to drill them out and replace with machine screws.
    It appears to be a standard induction motor, but I would be very surprised if it is a shaded pole motor with no capacitor for W.M. use.
    If you can see any brushes internally then it is a Universal motor, they were used for W.M.'s very frequently some years ago, but not usually seen now.
    But the rotor appears to be a squirrel cage type of an induction motor.
    M.
     
    RRITESH KAKKAR likes this.
  14. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    8,741
    759
    All I can say is winding motor is not for you.
    Washing machines using that type of motor has a capacitor else where.
     
  15. MaxHeadRoom

    Expert

    Jul 18, 2013
    10,507
    2,367
    Last edited: Jan 7, 2016
  16. tcmtech

    Well-Known Member

    Nov 4, 2013
    2,034
    1,625
    The first step to fixing it is to get it apart and find out exactly what got damaged then go from there.

    If the windings shorted out then it's likely not worth fixing but if its something simple like the start switch getting worn or stuck or a wire coming loose then its likely worth fixing.

    As for needing a start capacitor I am not so sure. I have salvaged dozens of old wash machine and dryer motors over the years and many of them do not have or need any start capacitors to get them up to speed.

    Many work by simply using a much smaller gauge of wire on the start windings so that the start winding set has a much higher resistance yet lower impedance than the run winding which creates the necessary phase shift needed to get the motor spinning.
     
  17. RRITESH KAKKAR

    Thread Starter Senior Member

    Jun 29, 2010
    2,831
    89
    Hello,
    I have successfully Removed the Iron frame with the help grinder.
    [​IMG]
    here is the figure how the 3 wires from it.
    what was the fault due to which it was not working?
     
  18. R!f@@

    AAC Fanatic!

    Apr 2, 2009
    8,741
    759
    Check the resistance of each wire to each wire. Write them down.

    edit : Damn ! you destroyed the motor. How in Dog's name are you going to put it back after repair. You are supposed to grind off the rivets. From the picture it seems you cutoff the metal housing

    If you wanna repair motor that way u are better off Googling
     
  19. Dodgydave

    Distinguished Member

    Jun 22, 2012
    4,969
    744
    Sounds like the proverb " sledge hammer to crack a nut " senario....
     
  20. RRITESH KAKKAR

    Thread Starter Senior Member

    Jun 29, 2010
    2,831
    89
    I am not interested to repair only learn how the winding work
    there is lap and wave winding which is this and how the pole north and south work here.
    the center armature rotating is only iron type part there is no winding.
     
Loading...
Thread Status:
Not open for further replies.