To get at the motor I had to strip the whole machine down. This included taking the on/off switch out to disconnect the wires leading to the motor to give enough movement to remove the motor. [Doing this is very tricky - look very carefully at the routes of the wires around the switch in its housing before removing the switch as knowing this will help you get the switch back in]. When you get to the final black plastic casing holding the motor you will see the motor is largely encased in a black ridged rubber 'glove'. The motor and rubber glove together are a tight push fit in the black plastic casing. Try putting a block of wood on the floor and push down hard on the plastic casing with the motor spindle vertical and on top of the wood. If you have bought a genuine Dyson replacement just disconnect the wires from the old motor and reconnect to the new one. Some of the cheaper replacements do not have the white plastic carrier frame attached to the motor which carries a black rectangular capacitor and a thermocouple in a thick clear plastic sheath. I would recommend you get the genuine Dyson motor with this on. My thermocouple has gone faulty causing teh motor to keep cutting out and so far I found it impossible find a source to get a new replacement thermocouple from. [if this info helps , send me your old thermocouple (banks @ colb . freeserve . co . uk)]
rhodfa'r
February 2006