Fisher & Paykel Excellence 7.5?

Anybody know what this could be??
Our F&P excellence 7.5 started squeaking while washing a fluffy dooner recently, when we done the next load(4pillowcases amd a cotton sheet) the machine still squeaked and did its usual thing except it seems to be struggling to spin??? I can spin it by hand but it seems to not have enough power to spin itself??? Ive watched it and it drum trys to rotate, moves just a little pauses and repeats itself. I tried to do just a spin cycle(empty load) and it still struggling to spin???
PLEASE can anyone help me?? Im the kind of guy that loves "tinkering" around with things and would like to fix this myself as finances cant afford a new machine.
Thanks in advance
Jon Cochrane