I don't think there is one freely available online at the moment, but there are ebay and amazon sellers who have reprinted versions available for sale. Jump on ebay or amazon and search for 'Hinari HB 100 Manual' and a few options will appear.
The link previously posted won't help i'm afraid..
repairs can be dangerous.
In many instances work should only be undertaken by a qualified
professional. Ensure you have read our Small
Print page before using information supplied via this website.