Raptor 30/50 v2 assembly manual
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The R30v2 comes with the same autorotation hub that the R30/50 v1 used. However the R50v2 comes with a constant tail drive. This is a white gear that is on the bottom side of the gray main gear as opposed to the other type which is red in color. The first set of instructions below are for the non-driven tail (the red gear). Go to the 2nd section if you have the white constant tail gear.
Tip: After you install the main gear on the main shaft (in the next step) check for any warping by watching for the gears to move up/down. as you spin them. If you see this first make sure you tightened the four bolts holding the main gear to the auto hub equally. If so then try rotating the main gear 90 degrees on the auto hub. If you are building the constant tail drive (R50v2) and you see the white tail gear wobble, then it maybe because it is tilted. The only thing holding it to the main shaft is the one bolt at the bottom. The gear can tilt slightly and cause the wobble. You can level the gear and that should correct it. It should level automatically with the belt installed because it would ride on the shoulder of the gear and push it in place.

R30v1/v2 R50v1
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 add addition oil or lube to the autorotation hub. I run mine nearly dry, just a thin film of oil in the needle bearings. 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 dampers 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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R50v2 - constant tail drive (white tail gear)
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 M3x8 (1) bolts and install them through the main gear and into the 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). After you get the sleeve through the auto hub, install the second snap ring (2). Now install the white tail gear. Rotate the tail gear so the holes align with the holes in the sleeve (6).

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