Fitting the Sceadu Evo 50 feathering shaft
| Author: | Rob Turnbull |
|---|---|
| Article Date: | 30th April 2007 |
We need to use a small amount of thread lock on the bolts that tighten into each end of the feathering shaft, but we must not get any in the bearings located in the blade grips, so do be careful.
The first bolt can be fitted into one end of the feathering shaft, before going anywhere near the bearings in the blade grips. Doing this bolt up finger tight at this stage is fine, it will be tightened up soon enough.
Slide the feathering shaft all the way through one blade grip, and then slide one spacer onto it so that the spacer sits between the blade grip and the head block.
Push the feathering shaft through the head block, which should have dampeners in either side sitting flush with the edge of the moulded plastic head block.
Assembling the feathering shaft
When the feathering spindle comes through the other side of the head block, fit the second spacer onto the spindle and then slide the feathering spindle into the second blade grip, ensuring that the ball links on the blade grips are on opposite sides of the shaft to each other and that they are on the leading edge (turning the head clockwise, the ball links would be the first part of the blade grip to hit the air).
At this point, the feathering spindle should almost reach through to the other side of the bearings inside the blade grip when looking from the side the blade is fitted. Apply a small amount of blue thread lock to the inside of the feathering shaft and fit the second bolt into the end of it, being careful not to get any thread lock in the blade grip bearings.
Tighten the bolts into the end of the feathering shaft ensuring they are very tight and that there is no play along the shaft when you try to pull the blade grips apart.