GWS 18-125v-LI bosch Grinder

[catlad]

My angle grinder has stopped working! The last time I used it
it had a slight vibration and when I came to use it again it won't
start. I have taken the battery out and tried to turn it by hand
but it doesn't want to turn. I am going to take it apart has anybody
got any idea's as to what to look for?

 

[Burnerman]

Imbalance on a grinder is often due to wear in the bevel gear bearings, worth taking the head off and checking there if you can.
I wouldnt worry too much about not being able to spin the machine by hand, some have an electronic brake that fails safe and locks things up.
Not much help, I know.....
John

 

[SammyInnit]

Sounds like one of two things.

A bearing has collapsed or the motor brushes have collapsed through wear.

You need to take it apart to find out which it is tho.

I'm going to say I'm 99% sure it won't be the bevel gears as John suggested. I have the same grinder and it's unbelievably robust. It's been such a good tool and long lasting that I recently bought the newer EC model too and I take both to work with me.

Start by removing the sealed motor and trying to turn this by hand.

You'll have removed the bevel gear grind head so make sure that turns freely.

Lastly check all bearings and gearing in the drive link

 

[catlad]

Thanks Guys for the replies
This tool is about 5yrs old now and has been used a lot
cutting concrete roofing tiles and the like.
So I have taken the head off and everything moves
smoothly but when I opened the body I noticed a small ball
bearing fall out of the motor and I can see another loose
inside, so I've looked to see if I can find a replacement using the codes on the side of the motor! but I'm having no luck at the moment.
These are the figures on the motor if anybody can point
me in the right direction 1.607.022.585
QD13627CCW3 RZ-8 BAWA-AWG19.5x9

Sammy I bought the GWS 18V-150SC about a month ago
and with the new pro core batteries its almost like using
a mains grinder

 

[SammyInnit]

I have a pair of the 7ah procores which really gives it the imph you need but I'd quite like to try the 12ah with the 21700 cells with it.

 

[SammyInnit]

Also:

https://www.google.com/search?q=161...hUBXLwKHbITBC0Q_AUoAXoECFYQAQ&biw=412&bih=652

 

[Burnerman]

If you dont get anywhere from the exploded diagram, every bearing has a number/ letter code on it - if you are able to extract it for a look see.
John

 

[catlad]

Thanks Sammy
The top one is the same motor as mine but at those
prices its not worth repairing, I think I will just buy a new one as it gives me a new 3yr warranty
I was going to buy one of those 12 amp batteries
but they were out of stock.

 

[SammyInnit]

Buy a new one, swap motors, return as faulty.

I've not found anyone with stock and they're a bit pricey.