ReInstalling the Main Rotor Mast to my ultralight helicopter. In order to prepare for first Engine RunUp Tests i removed the Main Rotor Gearbox, the Bellcranks mounting Ring Levers and the Main Rotor Control System (Inner Tube Swashplate mechanism) from the Main Rotor Mast for hardware updates.
For Reinstalling the Main Rotor Mast i used Thread Locker, new Nylon Insert Safety Nuts and Safety Wire to prevent the parts from losen up in Operation.
This is the EXPERIMENTAL HELICOPTER BUILD SERIES (Part 55)

00:00 Intro
01:26 Remove Main Rotor Control System (Inner Swashplate mechanism)
01:53 Remove Main Rotor Gearbox Support Brackets
04:04 Remove Main Rotor Gearbox
04:29 Cleaning Main Rotor Mast
05:13 Remove Lower Collective/ Cyclic Control Lever from Bellcranks Mounting Ring
05:52 ReInstalling Bellcranks Mounting Ring
06:47 Weighting Main Rotor Mast
07:04 Installing Main Rotor Mast
10:09 Safety Wire
10:49 Outro