Assemble the hub, the spacer and the backing plate and put the assembly back on the
prop balancer. Check the balance with the blades in place. Check blade movement again.
They should move freely but not too loosely. There will be a little resistance if they are
set up properly.
If there is a little resistance use valve-grinding polish and put on the spleen and work the
propeller for a few minutes.
Remove the propeller from the stand after adjusting the blade angles to be the same.
Separate the prop hubs by tapping some bolts to break it open.
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