Technical data

13773-001
27-20
Page 4 30 Nov 2000
(3) Adjustment/Test - Rudder System Rigging
Note: All control surface cable tensions should be rigged at an ambient temperature of
70°. Allow temperature to stabilize for a period of four hours before setting cable
tensions.
(a) Acquire necessary tools, equipment, and supplies.
(b) Remove baggage compartment carpet and access panel CF5. (Refer to 6-00)
(c) Loosen rudder system turnbuckles so all cable tension is removed.
(d) Insert lock-out pin at rudder actuation pulley in empennage.
(e) Set Rudder Pedal Neutral Position:
1
Determine spacer block length by measuring distance from gap between rudder
pedal torque tubes to firewall.
2
Cut block to determined spacer block length.
3
At LH outboard rudder pedal, wedge block between rudder pedal tube and firewall.
4
Tighten LH cable turnbuckle until spacer block falls, indicating LH rudder pedals are
in neutral position.
5
Repeat procedure on RH side.
(f) Remove access panels LE2 and LE1. (Refer to 6-00)
(g) If necessary, adjust rudder-to-vertical stabilizer alignment such that the rudder horn aligns
with the vertical stabilizer with no more than 0.1 inches (.25 cm) misalignment:
1
To move rudder trailing edge right, lengthen push/pull rod by loosening jam nut and
turning rod counterclockwise.
2
Shorten push/pull rod for opposite results.
(h) Remove lock-out pin.
WARNING:
Applying right rudder should deflect rudder trailing edge to the right. If
this is not true, system is improperly rigged. The system MUST BE
RIGGED CORRECTLY. Check for crossed or wrapped cables.
(i) Verify application of right rudder deflects rudder trailing edge to the right.
(j) Determine rudder travel:
1
With full left rudder applied, verify rudder deflection angle is equal to 20° +/- 1° by
ensuring distance between chord line of vertical stabilizer and chord line of the
deflected rudder horn is equal to 5.71 inches +/- 0.30 (14.5 cm +/- 7.6 mm). Adjust
stop screws at empennage rudder actuation pulley if necessary.
2
Repeat procedure for right rudder travel.
3
Ensure that rudder actuation pulley stops limit rudder travel and not yaw trim car-
tridge.
(k) Verify trim cartridge minimum rod end thread engagement of 0.312 inch (0.79 cm).
Tighten jam nuts.
(l) Perform Yaw Trim Cartridge Inspection/Check.(Refer to 27-20)
(m) Install access panels LE2 and LE1. (Refer to 6-00)
Description P/N or Spec. Supplier Purpose
Wood Block - Any Source Spacer