How can I fix loose part on gear box of Kenwood Chef?

Hi,
I have a Kenwood chef Km310, thats been making a noise when you run it when mixing dough.

heres pic showing the loose part:
http://img32.imageshack.us/img32/3673/kwkm310.jpg

Whenever I turn the machine on, that part will become detached and start moving around.

What I would like to know is, if I use some metal glue and fix it to its normal position, will that solve the problem.

thanks