The jockey pullies are located at the bottom of the drum and are hooked into the base of the cabinet. you really need to grease these pullies rather than oiling them and the best way to do this is by removeing them.
At the rear of the drier there is a plate with about 8 screws holding it on, behind this plate is the motor and either side of the motor are two arms each with a little wheel on, these wheels hold the tension for the belt and it is these wheels that squeek, but you may find they need replacing rather than just greasing because the hole in the center wears and they tend to wobble about.
casper...www.selfix-uk.co.uk
October 2008