Instruction manual

A. Select one #0101 M2x5 Threaded Ball and one #0437 Plastic Pitch Ring. Install the Threaded Ball into the

Plastic Pitch Ring, use a small amount of slow CA glue. Do not over tighten.

B. Select two #0439 Ball bearings. Place each on a clean surface, “ball” side up and add grease. Press one into

each side of the #0437 pitch ring so that the “ball” sides face inward.

C. Select the #0435 Tail Rotor Pitch Slider. Examine the previously prepared #0437 Plastic Pitch Ring. The

“boss” which supports the #0101 Threaded Ball has one side that is rounded. This rounded side will face the

flange at the end of the #0435 Tail Rotor Pitch Slider. Slide the #0437 Plastic Pitch Ring fully up to the

flange of the Tail Rotor Pitch Slider.

D. Select the #120-14 Tail Rotor Pitch Yoke. Examine the drawing and note that the angled parts face away

from the Plastic Pitch Ring. Slide the Tail Rotor Pitch Yoke onto the Tail Rotor Pitch Slider up to the

previously installed Plastic Pitch Ring.

E. Select two #0443 M6 Retaining Rings. It is Acupped@, and this Acupped@ side will face away from the pitch

yoke. Stand the pitch slider/ring/yoke assembly upright on the flange. Position the #0443 Retaining Ring

over the exposed end of the pitch slider. Use a small hammer and a 7.0mm (9/32@-5/16@) socket to cautiously

tap the Retaining Ring downward to meet the pitch yoke assembly. The desired situation is that the

components on the pitch slider have no end-play and the pitch ring freely rotates with no binding of the ball

bearings. If you go too far with the retainer, place a small piece of hardwood or plastic across the exposed

end of the brass pitch slider, support the pitch yoke near the ends and tap the wood very lightly with a small

hammer or tool handle. The retaining ring should move enough to relieve the bearings. Be very careful not to

distort the pitch slider at the end. Orient the second Retaining Ring such that the prongs fall in between the

first ring. Apply a small

amount of slow CA glue in the Acupped@ area of the retaining ring to lock it in place.

F. Examine the pitch yoke #120-14 noting that one side of each arm has a molded cavity which accepts a M2

Hex Nut. Press one #0015 M2 Hex Nut into each arm. The opposite side of each arm will be used for

mounting the #0859-16 Pitch Links. Mount each pivot by inserting one #0049 m2x10 Socket Head Bolt

through the flange side of one of the bearings in the pivot then through the pitch yoke arm #120-14 as

described use a slight amount of Blue Loctite inside the threads of the M2 Hex Nuts. Tighten securely.

NOTE: When properly assembled, each pitch link plate will be Acaptured@ between the bearing flange and the

mounting surface. This is important as a security if any bearing would fail. The same is true for the later

connection to each tail blade grip.