Rigging Of Tail Brace Wires; Rigging The Stabilizer Trim; Description - Cub Crafters CC18-180 Maintenance Manual

C. RIGGING OF TAIL BRACE WIRES
(1) Set the tail of the aircraft on a sawhorse or bench.
(2) Level the fuselage laterally (Refer to Section 08-00).
(3) Hang a plumb bob from the top rudder hinge and line up the tip with the bottom
rudder hinge.
(4) If needed, adjust the tension of the tail brace wires to straighten the fin. Accomplish
this by loosening the jam nut on either end of the wire and turn the brass barrel, (in to
shorten the wire and out to lengthen it).
(5) The tail brace wires must be tensioned while at the same time ensuring that the
horizontal stabilizers remain horizontal and the fin vertical.
(6) Lay a level along the rear spar of the stabilizers.
(7) Adjust the tension of the tail brace wires such that a 0.44 (7/16) inches ± 0.0625
(1/16) inches deflection may be reached when applying a load of 10 ±1 lbs at right
angles at the center of either of the top wires.
(8) Ensure that the rear spar of the stabilizer ends up level and the fin remains vertical at
the rudder hinge centerline after tensioning.
(9) The tolerance is ± 0.5 degrees.
(10) Tighten all 8 jam nuts on the brass barrels.

3. RIGGING THE STABILIZER TRIM

A. DESCRIPTION
The CC18 is trimmed in flight by changing the stabilizer's angle of incidence. A crank on
the left side of the cockpit operates the stabilizer trim control. A circular flexible steel
cable passes around a pulley attached to the crank, then back through the fuselage to
another pulley on the lower end of the stabilizer adjusting a jackscrew. When the crank
is rotated, the jackscrew turns raising or lowering the leading edge of the horizontal
stabilizers.
27-40
Page: 8
CUB CRAFTERS, INC.
CC18-180 MAINTENANCE MANUAL
Manual number TC10000AMM
Date: 05/20/08