izip 24v 4 brush motor assembly

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Ypedal   100 GW

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izip 24v 4 brush motor assembly

Post by Ypedal » Aug 29 2014 9:46am

Took a 24v izip brushed motor apart and having a horrible time getting the brushes to stay in place while i re-assemble the end cover.

any tips or links anyone ?
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spinningmagnets   100 GW

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Re: izip 24v 4 brush motor assembly

Post by spinningmagnets » Aug 29 2014 9:49am

Image

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Ypedal   100 GW

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Re: izip 24v 4 brush motor assembly

Post by Ypedal » Aug 29 2014 9:50am

exactly that..

how the hell do you re-assemble it ?
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gogo   10 MW

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Re: izip 24v 4 brush motor assembly

Post by gogo » Aug 29 2014 9:53am

4 strings or tape that can be extracted through the 'slot' before the final screw-together.

Using twist-ties:
Image

Using a wire through holes:
Image

http://endless-sphere.com/forums/viewto ... brush#p224

It seems you can change the timing and the gear-mesh sound by adjusting the end plate:
http://endless-sphere.com/forums/viewto ... ilit=brush
Last edited by gogo on Aug 29 2014 11:11am, edited 4 times in total.
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Ypedal   100 GW

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Re: izip 24v 4 brush motor assembly

Post by Ypedal » Aug 29 2014 9:55am

Got pictures lol ?
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Re: izip 24v 4 brush motor assembly

Post by Ykick » Aug 29 2014 10:47am

I'd probably try string around the braided lead where it attaches to each brush. Pull 'em back and secure with tape or something. Remove once the commutator slips in enough to hold the brushes.
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Ypedal   100 GW

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Re: izip 24v 4 brush motor assembly

Post by Ypedal » Aug 29 2014 12:50pm

Ok.. i finally got it, using the tape idea but with twist ties !!
izip24v.jpg
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johnrobholmes   1.21 GW

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Re: izip 24v 4 brush motor assembly

Post by johnrobholmes » Aug 29 2014 1:04pm

wire through the little holes to hold the brushes back, put on the cover, yank out the wire like a magicians table cloth trick!

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Ypedal   100 GW

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Re: izip 24v 4 brush motor assembly

Post by Ypedal » Aug 29 2014 1:09pm

what little holes ? .. .i don't get it .
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Ypedal   100 GW

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Re: izip 24v 4 brush motor assembly

Post by Ypedal » Aug 29 2014 1:10pm

NEVERMIND.. i just now clued in !!!...... damn... :oops: :pancake:
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Ypedal   100 GW

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Re: izip 24v 4 brush motor assembly

Post by Ypedal » Aug 29 2014 4:10pm

Ok... so the motor is ok, if i run it direct to a battery it runs fine. ( tested with 12v )

the bike is 24v SLA model Schwinn iZip... when you hit the throttle the motor will only run for 1 second and then shut down, if you hold the throttle on it will blip the motor every 5 seconds or so and keep shutting down....

I tested the throttle with Lyen tester gizmo, goes red to green as expected.... tested the bike with 24v Lifepo4 pack and get the same result, so the battery pack , motor and throttle are ok.. it has to be the controller right ?

( yes, i tried disconnecting the ebrakes, just in case.. not it )

Anyone seen this before ? .. and better yet.. anyone have a 24v brushed controller for sale ?
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Re: izip 24v 4 brush motor assembly

Post by amberwolf » Aug 29 2014 4:17pm

Sounds like the controller. Could be bad capacitors, or could be a FET that's partially damaged and is overheating real quick. Or even something wrong in it's low-voltage regulator section?


OH: also, what current does the motor draw? Maybe something is wrong (shorted winding, etc) that is drawing too much current and so it is causing the controller to shut down.

It might also only draw the higher current at higher voltages, too, so you may have to test it at 24V+ if it doesn't seem abnormal at 12V.

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Ypedal   100 GW

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Re: izip 24v 4 brush motor assembly

Post by Ypedal » Aug 29 2014 4:40pm

The motor " looks " pretty good, but i did not test no load amps.. i should have.. argh.
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