(c)
Remove the DO-NOT-OPERATE tag and move the FLT CONTROL SHUTOFF R switch on the P61 panel to ON.
(d)
Move the input levers for the middle and bottom PCA fully clockwise at the same time.
NOTE: This is to release unwanted hydraulic pressure and will
____ let the rudder position become stable.
(e) Make sure the rudder trailing edge is no more than 0.05 inch
(1.27 mm) away from its neutral position.
(f) Do these steps if the rudder trailing edge is more than 0.05 inch away from its neutral position: 1) Loosen the lock nut on the input rod for the top PCA.
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2) Do these steps to move the rudder right of neutral approximately 0.50 inch (12.7 mm): a) Hold the input levers for the middle and bottom PCAs
fully clockwise.
NOTE: This will remove the unwanted hydraulic pressure
____ from the middle and bottom PCAs.
b) Adjust the input rod for the top PCA until the rudder is approximately 0.50 inch (12.7 mm) to the right of its neutral position.
c) Release the input levers for the middle and bottom PCAs. 3) Adjust the input rod for the top PCA until the rudder is in its neutral position.
NOTE: Always move the rudder from right to left during the
____
adjustment.
4) Tighten the jamnut for the input rod and do these checks: a) Make sure the rudder position does not change. b) Make sure you can see input rod threads in at least
one-half of the inspection hole for the input rod.
(g) Remove the power from the left, right, and center hydraulic systems (AMM 29-11-00/0201).
NOTE: All hydraulic power must be removed.
____
(h)
Remove the DO-NOT-OPERATE tag and move the FLT CONTROL SHUTOFF switch C on the P61 panel to ON.
(i)
Remove the DO-NOT-CLOSE tag and close this circuit breaker on the P11 panel: 1) 11H28, FLT CONT SHUTOFF TAIL RIGHT
(j)
Connect the input rod for the middle PCA to its input lever.
(k)
Connect the input rod for the bottom PCA to its input lever.
(9)
The Three PCA System - Adjustment
S 825-123
NOTE: Before this procedure is done, make sure the airplane is
____ stable at ambient air temperature |10.0 degrees F (|5.5 degrees C). Before adjustments or adjustment checks are made, make sure the temperature has been stable for at least one hour.
(a)
Supply pressure to the left, right, and center hydraulic systems (AMM 29-11-00/201).
(b)
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the P11 panel: 1) 11H17, FLT CONT SHUTOFF TAIL LEFT 2) 11H18, FLT CONT SHUTOFF TAIL CTR
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3) 11H28, FLT CONT SHUTOFF TAIL RIGHT
(c)
Remove the DO-NOT-OPERATE tags and move the FLT CONTROL SHUTOFF L, R, and C switches on the P61 panel to ON.
(d)
Make sure the rudder is no more than 0.10 inch (2.54 mm) away from its neutral position.
(e) Do these steps if the rudder is more than 0.10 inch (2.54 mm) away from its neutral position: 1) Move the FLT CONTROL SHUTOFF switches R and C on the P61 panel to OFF. Make sure the switch position lights are ON. 2) Make sure the rudder trailing edge is no more than 0.05 inch away from its neutral position. 3) If the rudder is more than 0.05 inch (1.27 mm) away from the neutral position, do the "Middle PCA - Adjustment" group of steps again (above). 4) Move the FLT CONTROL SHUTOFF L switch on the P61 panel to OFF. Make sure the switch position light is ON.
5) Move the FLT CONTROL SHUTOFF C switch on the P61 panel to ON and do these steps: a) Make sure the rudder is no more than 0.05 inch
(1.27 mm) away from its neutral position.
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