(l)
Move the rudder pedals through 5 cycles of full travel. 1) If necessary, jiggle the rudder pedals to put the pedals to the neutral positions.
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BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details.
(m) Do these steps to the upper control rod to put the rudder trailing edge to the left of the index plate:
NOTE: Always start the adjustment of the control rod with the rudder at this position.
1) Loosen the clamp nut on the upper control rod until you can rotate the sleeve. 2) Rotate the sleeve until the rudder trailing edge is between 0.20 to 0.30 inch (5.1 to 7.6 millimeters) to the left of the index plate.
NOTE: One full rotation of the sleeve will move the rudder trailing edge 0.18 degree (0.18 inch). Rotate the sleeve clockwise (looking aft) will move the rudder trailing edge left. Rotate the sleeve counter-clockwise (looking aft) will move the rudder trailing edge right.
(n) Do this adjustment to the upper control rod:
1) Loosen the clamp nut on the upper control rod until you can rotate the sleeve.
2) Rotate the sleeve until the rudder trailing edge is within the center of the index plate. a) Make sure that the rudder trailing edge does not go beyond the center of
the index plate on to the right side. If this happens, start the adjustment again with the rudder trailing edge positioned to the left of the index plate. 3) Tighten the clamp nut on the upper control rod.
NOTE: Do not torque the clamp nut at this time.
4) Make sure that the rudder trailing edge is still within the center of the index plate.
(o)
Set the FLT CONTROL B switch to ON and A switch to OFF.
(p)
Move the rudder pedals through 5 cycles of full travel. 1) If necessary, jiggle the rudder pedals to put the pedals to the neutral positions.
(q)
Do this adjustment to the lower control rod:
1) Loosen the clamp nut on the upper control rod until you can rotate the sleeve.
2) Rotate the sleeve until the rudder trailing edge is within the center of the index plate. a) Make sure that the rudder trailing edge does not go beyond the center of
the index plate on to the right side. If this happens, start the adjustment again with the rudder trailing edge positioned to the left of the index plate. 3) Tighten the clamp nut on the upper control rod.
NOTE: Do not torque the clamp nut at this time.
4) Make sure that the rudder trailing edge is still within the center of the index plate.
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27-21-1 Page 516 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. May 01/03
W29101
500 Rudder Travel and Index Plate
May 01/03 Figure 505 BOEING PROPRIETARY - Copyright . - Unpublished Work - See title page for details. 27-21-1 Page 517
(r)
Set the FLT CONTROL A switch to ON. 1) Tap on the rudder pedals lightly to put the rudder pedals to the neutral position. 2) Make sure that the rudder trailing edge is still within the center of the index
plate.
(s)
Set the FLT CONTROL B switch to OFF.
1) Make sure that the rudder trailing edge is still within the center of the index plate.
(t)
Set the FLT CONTROL B switch to ON and FLT CONTROL A switch to OFF.
1) Make sure that the rudder trailing edge is still within the center of the index plate.
(u)
Set the FLT CONTROL A switch to ON.
(v)
Tap on the rudder pedals lightly to put the rudder pedals to the neutral position.
(w)
Remove the DO-NOT-CLOSE tag and close this circuit breaker: 1) FORCE FIGHT MON
(x)
Verify voltage between pin 1 and pin 2 of connector D10070 on the EE shelf is between 4.38 VDC and 5.62 VDC. 1) If the voltage measured is not between 4.38 VDC to 5.62 VDC, do the steps to
adjust the control rods for the rudder power control unit again.
(y)
Tighten the clamp nuts on the upper and lower control rods to 100-150 pound-inches
(11.3 to 16.9 newton-meters).
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