Damaged OSET 20" motor

H

HH260279

10 µW

Joined

Oct 1, 2014

Messages

6

• Jan 24, 2015

• #1

Could anyone with good knowledge of electric motors help me understand what has happened to this motor for an 48V OSET 20 trial bike?

The motor has been used with a standard 48V battery, but suddenly started to become very hot, and it smelled burned.

As you can see on the image, the windings looks like burned, but also teared apart. Could this be a warranty issue? The bike is only 1 year old.

I believe oset use a XYD14 motor, but they are quite costy..

 

emmetbrown

10 W

Joined

Oct 28, 2010

Messages

99

Location

Germany

• Jan 24, 2015

• #2

Of course it should have been a warranty issue if nothing had been changed and it is still in the warranty time.
Why did you open it up?

 

H

HH260279

10 µW

Joined

Oct 1, 2014

Messages

6

• Jan 24, 2015

• #3

Because the dealer is denying warranty.,

 

emmetbrown

10 W

Joined

Oct 28, 2010

Messages

99

Location

Germany

• Jan 24, 2015

• #4

If it happened under "normal" conditions, how can he deny?

Edit: I don't get the point, if it happened under warranty and normal usage the dealer has to manage it, or what eactly do you want to know?

 

H

HH260279

10 µW

Joined

Oct 1, 2014

Messages

6

• Jan 24, 2015

• #5

He says it can not happen under normal conditions.. Well, but it did.. As you can see on the image, the windings seems to be teared up. Could that be the reason?

 

H

HH260279

10 µW

Joined

Oct 1, 2014

Messages

6

• Jan 24, 2015

• #6

Motor is still running, but very "staggering", and low power..

 

emmetbrown

10 W

Joined

Oct 28, 2010

Messages

99

Location

Germany

• Jan 24, 2015

• #7

Sure, that motor looks fried to me.

Edit:
The question is: Why
At which circumstances?
On a hill, in the wet or perhaps after a downfall?

Does this motor have a fan cooling? Perhaps it sucked some debris in.
Are the bearings ok?

 

neptronix

Administrator

Staff member

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Jun 15, 2010

Messages

17,702

Location

Utah, USA

• Jan 28, 2015

• #8

It burned up due to being overheated ( this usually can happen on a long hill + the motor controller has been specced to run the motor at far too high an amperage + does not have a thermal limit ), or from a design flaw that caused the motor to burn up.

It's a goner.

 

Dauntless

100 TW

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May 28, 2010

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Coordinates: 33°52′48″N 117°55′43″W

• Jan 28, 2015

• #9

Denying warranty why exactly? Did you open it up FIRST? How did the dealer come to say this was not proper usage? Exactly what happened to the motor and exactly what did you say to the dealer?

 

emmetbrown

10 W

Joined

Oct 28, 2010

Messages

99

Location

Germany

• Feb 12, 2015

• #10

Something new about your warranty-case?