Removing the Sceadu Evo 50 feathering shaft
| Author: | Rob Turnbull |
|---|---|
| Article Date: | 30th April 2007 |
With the main rotor blades removed from the blade grips, you can see, when looking inside the blade grips, the bolt that sits in each end of the feathering spindle.
The feathering shaft bolt(s)
To remove the feathering shaft bolts, we need to turn both ends at once so two tools of the same size are required. Once the bolts are undoing freely, you will find one of the two bolts is still tightly connected to the feathering spindle, while the other is the one that is being undone.
Completely remove one bolt from the end of the feathering spindle as this will allow you to remove the blade grip from that side of the head. Be careful when removing blade grips that you do not lose the small spacers that make up the feathering spindle/blade grip assembly, there is one small spacer located between each blade grip and the head block.
Blade grip and feathering shaft assembly
Removing the links connected to the blade grips at this point will make your work easier. Once one blade grip has been removed, you should be able to remove the feathering spindle out through the head with the other blade grip. You can then remove the feathering spindle from the other blade grip, and then, using a pair of pliers to hold the feathering shaft still, remove the other bolt from the end of the feathering spindle.
As with checking main shafts for minor deformity, checking the feathering spindle is simply a case of rolling it on a kitchen worktop or mirror (or other suitable flat surface). If you have any doubts about the feathering spindle not been absolutely straight and true, don't use it.