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The stock swashplate on the Hummingbird / Feda Micro Helicopter is pre-installed. The Swashplate is centered on a black plastic tube which rests on the main shaft. The purpose of the black plastic tube is to hold the upper chassis structure in place and to keep the main gear below from sliding down.
The problem with this setup is that the plastic tube introduces several additional points of friction including:
1. It will rub against the upper anti rotation arm
2. Add pressure against the lower ball bearings
3. Will cause high friction on the main shaft thus adding motor load.
4. Greatly impair the ability of the swashplate to tilt ( create binding ).
The above items will reduce total flight time, shorten the total life of the motor and severely impact flight control due to reduced cyclic movement of the swashplate and consequently impact flight stability.
This can be easily fixed using a shaft collar with a set screw (available as Part#HH118).
First, begin by detaching the main blades and then the remove the locking head pin. Remove the rotor assembly and slide the swashplate and black tube out of the main shaft. Disengage the black tube from the swashplate. Slide the shaft collar onto the main shaft until the collar reaches the upper bearing. Lock in place using the supplied set screw. Slide the swashplate back into place and remember to set the anti rotation pin inside the chassis fork. reinstall the head assembly and lock it all in place with the pin.
Reconnect the servos and the rest of the electronics. You may wish to reduce your radio’s ATV as it may be too “touchy”; this will allow you to adjust to the new comfort of the free tilting swashplate.
You can now try and move the swashplate from side to side. You will find that the swashplate will gently rotate around its own axis.
Also the main gear will rotate freely since the black tube no longer binds against main shaft.
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