Fiat Marea 1.9 turbo diesel alternator,how do you get it out

[fairholme]

Hi Everyone,hope you might be able to help.It's a T reg Fiat Marea 1.9 turbo diesel.The charging light has started to come on but seems to go off when the car is revved over 2,000 rpm.I checked the belt and it looked ok,so I thought it might be the brushes in the alternator.It looks pretty difficult to get to.Any ideas how to actually take it out,does the drive shaft have to come off or is there an easier way to get to it??Any help massively appreciated,Cheers Carl