Rebuild of an imported kitchenaide mixer

We bought a used Kitchen-aide professional 600 on ebay about a year ago, last week Ii stripped the shaft gear. It turned out that the gearbox is the same on most of these little domestic mixers so I went to the repair agent in Geelong and bought a replacement gear.
Cleaned out all of the gunk and old grease, found the small bits of steel that had stripped off; re-greased and re-assembled. Was fine but a little noisy the Blam-OH!! the damn thing screamed and stopped working.
Later today I will strip it again and see if it has stripped in the same place.
Anybody here have any experience in rebuilding small gearboxes?? Any pointers or tips?? Julians want $70 to open the thing ( which is fair ) and the labour and parts.

Because of the cost of the parts we are not sure we can afford to rebuild it if we have to pay $55- an hour plus shipping from the USA of parts via the Australian agent ( this effectively triples the US part cost ) i love this little machine for doing small batches of bread dough as it is rated at 2kg of flour ( actually 14 cups )

Any ideas any one??


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