Faulty lathe motor

[DanJ]

Hi im the new guy

I have recently been getting into woodworking and have inherited a lathe from my Granddad. However after a few minutes the motor tripped the board. There is a short somewhere but im pretty rubbish at electronics so any ideas would be great.
I have checked the main power cable and it is fine so im guessing the short is internal somewhere.

Many thanks in advance for any help

here is the info

 

[Racers]

Their should be a capacitor some where under a bulge like cover, its most likely to be the problem if its bulged then its defiantly the problem.
Replacement from eBay post a picture if you are stuck.

Pete

 

[DanJ]

Hi there , thanks for the help.

im not sure which one is the capacitor , but i cant see any bulges or damage to either

 

[Racers]

You will need to open them up to find the capacitors, I should have said that.

Pete

 

[DanJ]

They are press fitted closed . I cant see a way to access inside

 

[Racers]

Have you unscrewed them from the motor?

Pete

 

[DanJ]

I got them open

I assume this is the issue ?

 

[DanJ]

another pic

 

[Racers]

Looks like it, the next thing to do is pull it out and find what value it is.
You will have to cut/desolder the wires, but don’t worry it doesn’t matter which way round they go.
Post a picture and I will point you in the right direction for a replacement.

Pete

 

[DanJ]

Ive got it out of the case but i see no markings on it

Do i need to remove black epoxy looking stuff from the top ?

 

[Racers]

The value is usually on the side, you are a bit stuffed if it hasn't got one, I would ring a local motor rewinders they should be able to advise/supply you with a replacement.

Pete

 

[DanJ]

I have found some details on the case .

TCC
10 µ F440VRMS
KP 5474
R

Is this what we are looking for ?

 

[novocaine]

10 µ F440VRMS = 10 micro farad 440v now you can buy new ones.
electrolytic do have a directionality, but as they are operating on AC not DC it doesn't matter as pete has said.

 

[DanJ]

Great , thanks for the help.

Is this suitable ?

https://www.amazon.co.uk/Motor-Capacito ... +capacitor

or this

https://www.ebay.co.uk/itm/Start-and-Ru ... 1855530289


https://uk.rs-online.com/web/p/polyprop ... s/1964804/

 

[Racers]

Either of the last two will be fine.

Pete

 

[DanJ]

Thanks so much for the help , i will update when i have fitted the new unit

 

[DanJ]

Well i replaced the capacitor that looked like it had possibly been damaged , but it still tripped the fuse. I then replaced the second capacitor, but still the same problem.

 

[ColeyS1]

Perhaps you need a 16 amp supply. I had something similar happening and all I had to do was replace one of the mcbs in the fuse box with a slightly different one.

Sent from my SM-G900F using Tapatalk

 

[Rorschach]

Is there a clicking/ticking sound when you run the motor? If so could be a sticky or damaged starter switch.

At that motor size it should be fine on a normal circuit. Just to be sure though, have you tried on another circuit in the house, might be that your MCB is very sensitive.

Do you have a multimeter?, might be worth checking for a ground fault too.