Instruction manual

Step 2: Assemble the Constant Drive Autorotation Upper Section

Parts Required: Bag#

8 #0088-1 M3x5 flat head screws 3B

1 #0866-5 70-Tooth Upper Bevel Gear 3B

1 #0866-6 Upper gear mounting base w/main shaft sleeve 3B

Refer to Drawing #3B

Select eight #0088-1 M3x5 Flat Head Screws and prepare each with Blue Loctite. Select the #0866-5 Bevel Gear

and #0866-6 Mounting Base. Press the mounting base downward into the upper surface of the bevel gear,

aligning the holes as you proceed. From the underside, install the eight #0088-1 M5x3 Flat Head Screws,

tightening them a little at a time in a Astar@ pattern. Tighten all with light torque.

Step 3: Install the Outer Main Gear onto the Autorotation Hub

Parts Required: Bag#

1 Main Gear 7D

4 #0088 M3x8 Flat Head Socket Bolts 3C

2 #0866-10 M14.0-20.0x0.2 shim rings 3C

1 #0866-11 M14 Teflon O-rings 3C

1 #0866-4 Lower Housing w/ sprag bearing 3C

Refer to drawings #3C

and #3D

A. Select four #0088 bolts and prepare with Blue Loctite. Select the outer main gear (p/n appropriate to your

kit’s gear ratio) and note the four countersunk holes

on the upper surface. Only the countersunk holes will be

utilized. Press the gear atop the upper housing, align the countersunk holes, install the four bolts and tighten

with light torque.

B. Select one #0866-10 shim ring and apply a little grease to each side. Set this ring atop the Oilite bushing

(visible at the top of the upper housing, protruding through the main gear).

C. Select another #0866-10 shim ring, apply grease and slide upward to meet the gear mount. Select one #0866-

11 Teflon O-ring and install it next to the shim ring. Set the main gear/sprag housing assembly upright on the

table. Insert the upper gear/sleeve assembly downward into the sprag clutch. When it makes contact, rotate

the upper assembly slightly clockwise while lightly pressing downward. When it drops inward about 5.0mm

(easily noticed as you rotate and push downward) lift the combined parts off the table. Hold them inverted at

about a 45 degrees angle and apply a liberal amount of Tri-flow oil to that portion of the sprag clutch that is

visible just inside the lower Oilite bushing in the lower hub. Rotate the unit as you apply more oil. The unit

will hold about 7-8cc (1/4 ounce) of oil. When oiling is completed, press the upper gear fully into the lower

gear and wipe away any excess oil.

Note: never force the main shaft sleeve into the sprag clutch. If it does not insert easily while rotating,

look from beneath the sprag to be sure that the cogs look uniformly positioned. They are only retained

by an outer spring and it is possible to dislocate one during insertion. If necessary, remove the sprag

clutch from the housing and it will return to its proper configuration.