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AERONUTS
To remove the drive gear for the inner shaft, loosen the screws on each side of the
aluminum retaining collar. This will allow the inner shaft to be pulled out of the rotor
mast.
Just as a suggestion, back the screws all the way out, then screw them back in 1
½
to 2 turns so you can keep the screws in the collar and not misplace them.
Grasp the upper rotor head and gently pull it out.
The drive gear and collar can then be removed, as it will be loose in the battery
bracket.
During reassembly, keep in mind that the screws from the retaining collar must align
and set into the notches at the end of the inner drive shaft. This will prevent the
drive gear from spinning free on the shaft and causing failure and/or a crash.
