how can i fix ... ultima wma 76?

my ultima washing machine works on all wash programmes , however when it first starts to spin the drum bounces around and the entire machine moves quite violently . it's level and the feet adjusted correctly but something is wrong with the drum , although it feels ok when i move it manually and once its spun for a few seconds it does go quiet and settle but i'm worried the entire drum is going to come undone . can you help with some info please , as i've shipped this machine out to the far east , where i use it and there are no repair agents here . any help would be much appreciated . CALVIN.