Superstar Switch Hub advice needed please

I’ve just noticed that my rear wheel is sliding from side to side ever so slightly.

Can anyone tell me why this is happening and how I can fix it please?

I did a google search but couldn’t find any info on servicing the hub. It would be handy to know what I need for changing bearings and some instructions too. Thanks.

I emailed the guy at Superstar when my bearings started to go – he sent me the instructions for servicing the front and rear hubs. It’s pretty quick and easy to change them.

Ok thanks. Did you need any special tools other than a chainwhip and lockring tool?

The Joytech site (Novatech) have all the instructions for servicing them standard size cartridge bearings

Many thanks jonk I found the instructions.