Raptor 30/50 v1 assembly manual
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In this section you have the main gear (4), tail gear (5), and autorotation hub (3). The top gray gear will have a number stamped on the top. The gear for the 30 size is 86 tooth and the one for the 50 is 85 tooth. The assembly is fairly simple with maybe the exception of the snap rings (2). You can get a cheap snap ring plier from your local automotive shop. I have installed them and taken them off without the special pliers but don't recommend it.
Start by pushing the auto hub (3) through the top of the gray main gear (4). The top of the main is the side with the deep section. Align the four bolt holes with the four holes on the gear. Now apply blue loctite to the four M3x12 (1) bolts and use them to bolt the red tail gear (5) to the main gear and auto hub. Next install one of the snap rings (2) onto the auto hub sleeve (6). Slide the sleeve into the auto hub (keep the end with the hole through the side on the bottom). Note: Do not oil or lube the autorotation hub. There have been reported instances where this has caused the 'wah-wahs'. This is an oscilating sound during 0 degree descents (this can also be caused by non-lubed head dampeners or the low speed needle too lean). After you get the sleeve through the auto hub, install the second snap ring (2). Now try to move the main gear up and down. If it has some slack then buy or make some shims to install under the top snap ring. Ron Lund sells them in a package of 5 for $3. Get some thin and thick ones. Part #: SHIM141 14mm X .1mm and SHIM142 14mm X .2mm If you have up/down play in the main gear this can contribute to the 'wah-wahs'.

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