Instruction manual

E. Select two #0003 M3 Flat Washers, two #0093 M3x18 Special Phillips Bolts, and the two prepared graphite

tubes (from the previous step). It is suggested that both braces be aligned and fitted prior to final gluing.

Install one washer on one #0093 bolt and insert into one brace end. With the graphite tube pointing forward,

temporarily thread the bolt and brace into one of the molded holes on either side of the horizontal fin mount.

Repeat the process for the remaining brace on the opposite side of the fin mount.

F. Align the brace ends attached to the main frames (either at the fan shroud brace or rear strut) with both

graphite tubes and slide the horizontal fin mount forward until the graphite tubes insert into the holes in the

front brace ends. Check to see that everything sits naturally without any binding.

G. Select one #0019 M3 hex locknut, two #0009 M3 Washers, and one #0065 M3x12 Socket Head Bolt. Install

these into the bottom “clamping” portion of the #0870-1 horizontal fin mount. Level the fin and tighten the

bolt.

H. Remove both side bolts that secure the rear of each brace to the horizontal fin mount. Stand the model

vertically on its radio tray (easiest in the corner of a room or between your knees while in a seated position).

For each brace/graphite tube, prepare the open end of the tube and the threaded part of the brace end on the

main mechanics with the glue of your choice. Insert the tube fully into the end and align the rear with the

horizontal fin mount and reinstall the #0093 Phillips bolt. Repeat the procedure for the opposite side and

keep the model vertical until the glue dries. This procedure assures that the tail boom and braces sit straight

and without any pre-load induced from their own weight.

Step 3: Installing the Graphite Tail Rotor Push Rod

Parts Required

Bag#

2 #0133-1 Special ball link 11D

2 #0868-4 Heat shrinkable Teflon tubes 11D

2 #0868-7 M3x60 threaded stud 11D

1 #0868-10 Graphite Pushrod 31@ 11A

Refer to Drawing #11D

A. Select two #0868-7 Threaded Studs. Clean each with alcohol or lacquer thinner. Each stud is to be installed

into the graphite tube to a depth of 23.0mm. Select the #0868-10 Graphite Pushrod. Prepare each stud by

applying J-B Weld epoxy (or similar slow drying epoxy) and insert each into the tube to the correct depth. Set

aside to dry or apply mild heat from a hair dryer.

B. Select one # 0133-1 Special ball link and two #0868-4 Teflon shrink tubes. Slide each Teflon tube onto the

graphite tube (final positions to be determined later) and thread the ball link on the threaded stud of the

graphite tube, concealing about 7.0 mm of the threads. From behind the tail rotor gearbox, slide the graphite

pushrod assembly (leading with the threaded end which has no ball link installed) through each previously

installed push rod guide. Select the remaining #0133-1 Special ball link and thread it onto the pushrod to a

depth of about 7.0 mm. Connect one link to the front bellcrank and one to the rear bellcrank. Temporarily

slide each Teflon tube to the ends of the graphite tube so they do not interfere with final adjustment. Adjust

each ball link until the front bellcrank is vertical and the rear bellcrank is parallel with the rear of the Tail

Rotor transmission case.

C. Manually operate the pushrod and make preliminary adjustments to each guide so that it operates freely and is

approximately centered within each guide. Tighten each #0868-5 Pushrod Guide and #0477 Guide Support.

Slide the Teflon tubes into position within each guide so that complete operation of the pushrod does not