Servicing a m778 front hub

lugsey2k5

Hello.

Im trying to service my shimano m778 15mm threw axle front hub. Iv removed the axel and bearings from there cages but due to the red cap shown below and a built in seal on the other side i cant remove the cages to clean the race behind it leaving grit and old grease trapped in there. Does any one know a way to get into it properly so i can clean it properly.

http://cycle.shimano-eu.com/media/techd ... 648821.pdf





Thanks

cooldad

You just have to clean from there. Ear bud or something?

lugsey2k5

What a bad design. So much for Shimano hubs being easy to service. Will give the ear bud thing a go. Thanks

DodgeT

I did mine by using a toothbrush and white spirits.
Clean it all out moving the cage round as you go,then wash through and dry it all out, ear bud comes in handy here. Then re-grease as you fit the new balls, good as new.

lugsey2k5

Thanks guys. Ear bud was a good call. its not perfect but its better than it was.
Thanks again.

add595

Use some evaporating degreaser in a spray tin to 'blast' it out. That's what I do.