Failed Hub Motor Clutch - Promovec (Shengli) Motor Teardown

Рет қаралды 27,209

Ebike Repairs

Жыл бұрын

Пікірлер: 33

@JCisJD 4 ай бұрын

Your videos are so helpful

@EbikeRepairs 3 ай бұрын

Glad you think so!

@strhunter666 11 ай бұрын

very helpful, i had a customer bring in a newer bike and the axle key was never installed

@EbikeRepairs 10 ай бұрын

Glad it helped

@gren509 3 ай бұрын

The "sprag" clutch is dry. Lift the seal off and put oil into it, it will work fine.

@joehozzy2616 2 ай бұрын

Yes had same issue. I drilled a tiny hole in clutch and injected oil into it.

@EbikeRepairs 2 ай бұрын

Good to know, I'll have to give that a go next time I get an unfixable one! Thanks for the info

@Boediprasetya 2 ай бұрын

@@joehozzy2616 If you make a hole in the clutch with a drilling machine, there will definitely be particles that fall into it, how do you get the particles out?

@joehozzy2616 2 ай бұрын

@Boediprasetya do it carefully and there will be no issues

@Boediprasetya 2 ай бұрын

@@joehozzy2616 Thanks Bro

@jorainer612 3 ай бұрын

I've got this exact same clutch. Please where did you get a new one? Mines from a volt bike. Like yours looks fine. But sometimes no drive and clunking from the motor so wanted to replace it.

@EbikeRepairs 2 ай бұрын

Unfortunately, I didn't manage to get a spare, the manufacturer never responded. I replaced the whole motor for the customer.

@radowane101 Жыл бұрын

I have the same situation in a gazelle ebike, what should i do ? Is it possible to replace only the bearing or i need all the planetary assembly ?

@EbikeRepairs Жыл бұрын

I think you need the clutch mechanism, usually comes with the planetary gears included. I don't know how to replace only the clutch mechanism one way bearing, I think they're sealed units.

@radowane101 Жыл бұрын

@@EbikeRepairs thanks

@bogsquatch6782 Жыл бұрын

Is it possible to loosen up a sticky clutch to help coast for longer

@EbikeRepairs Жыл бұрын

Either bearing replacement or a new clutch assembly would be needed. What motor do you have?

@bogsquatch6782 Жыл бұрын

@@EbikeRepairs thanks man I have the engwe pro motor. I found out that model has a welded clutch to enable regen from the motor. I uploaded a post of the two clutches for anyone to compare. Such a relief the new clutch coasts for days

@EbikeRepairs Жыл бұрын

i didnt know that, thanks!

@DikTrom 9 ай бұрын

woodruff key is round, this seems to be a square one not?

@EbikeRepairs 9 ай бұрын

AFAIK this is standard but maybe I'm calling it the wrong name - it's a keyway slot filler jobbie

@bernardpayne2882 Жыл бұрын

Hi, did you find a source for the clutch? I also have a smaller axle - 13.5mm

@EbikeRepairs 10 ай бұрын

unfortunately not. sorry!

@nickbryant3695 9 ай бұрын

@@EbikeRepairs Did you end up having to replace the whole motor in the end? I have a Promovec motor with the same issue, and exactly the same Planetary Gear part that has failed. Bafang gears are easy to source, but not Promovec it seems.

@nickbryant3695 3 ай бұрын

Answering my own question here, but I managed to get a replacement clutch from Batribike, who are the UK distributors of Promovec motors. Took about 6 weeks to arrive as they need to import the part but is now installed and all working again. Many thanks for the original video as it was a great help in working out how to take the motor apart.