If one gear is damaged it is causing damaging to the other, whether you can see it or not. If you have teeth that are skipping, the gear with bad teeth will wear out the teeth on the other gear. You should always replace both gears. On your polisher, the small drive gear isn't on the armature, it's part of the armature (Makita part number 515266-4) and that's a $90 to $110 part to replace. The spiral bevel gear (Makita part number 227455-6) is $40 to $45. You can replace one or the other but the gear you leave in will only wear out the new one.
220 views
Usually answered in minutes!
×