(a)
Install the washer (16) and the bolt (17).
(b)
Install the bushing (13), washer (15), and the nut (14). Do these steps: 1) Make sure the torque that is necessary to turn the nut
before it touches the aileron is 90 - 400 pound-inches (10.2-45.2 Nm). 2) Tighten the nut to 1300 - 2000 pound-inches (146.8-225.9 Nm).
S 432-024
(3)
Do this step to connect the input rod (2) to the input lever (3):
(a)
Install the bolt (10), washer (11), and the nut (12). Tighten the nut to 50 - 80 pound-inches (5.6-9.0 Nm).
S 432-025
(4)
Connect the hydraulic lines (5, 9) to the PCA.
S 432-026
(5)
RIGHT INBOARD AILERON PCA; Install the bolt (23) and washer (24) that connect the tubing support bracket to the wing structure (3 locations). Tighten the bolt to 20 - 30 pound-inches (2.3-3.4 Nm).
S 642-027
(6)
Lubricate the PCA grease fittings with grease after installation.
S 092-028
(7)
Remove the actuator lock.
H.
Adjust the Aileron PCA
NOTE: This procedure is applicable when one of the two aileron PCAs
____
(on each wing) is replaced.
S 492-029
(1)
Move the control wheels to their neutral positions and install this rig pin:
(a)
A3 (for the left aileron quadrant and override mechanism) to adjust a PCA for the left aileron.
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757 MAINTENANCE MANUAL
(b) A4 (for the right aileron quadrant and override mechanism) to adjust a PCA for the right aileron.
S 862-003
WARNING:_______ KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL SURFACES WHEN
HYDRAULIC POWER IS SUPPLIED. AILERONS, ELEVATORS, RUDDER,
FLAPS, SLATS, SPOILERS, AND STABILIZER ARE FULLY POWERED
SURFACES. INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR
WHEN HYDRAULIC POWER IS SUPPLIED.
(2) Supply pressure to the hydraulic system that supplies the PCA that was not replaced (Ref 29-11-00).
NOTE: The left system supplies the right aileron outboard PCA.
____ The right system supplies the left aileron outboard PCA. The center system supplies the left and right aileron inboard PCAs.
S 222-030
(3)
Make sure the inboard trailing edge of the aileron is aligned with the outboard trailing edge of the main flap (use a tolerance of 0.06 inch). If the trailing edges are not aligned, do the procedure to adjust the aileron power control actuators (PCAs) (Ref 27-11-00/501).
S 862-031
(4)
Remove the power from the hydraulic system that supplies the PCA that was not replaced (Ref 29-11-00).
NOTE: All hydraulic power must be removed.
____
S 822-032
(5) Loosen the locknuts on the input rod for the PCA that was replaced.
S 862-001
WARNING: KEEP PERSONS AND EQUIPMENT AWAY FROM ALL CONTROL SURFACES WHEN
_______ HYDRAULIC POWER IS SUPPLIED. AILERONS, ELEVATORS, RUDDER, FLAPS, SLATS, SPOILERS, AND STABILIZER ARE FULLY POWERED SURFACES. INJURY TO PERSONS OR DAMAGE TO EQUIPMENT CAN OCCUR WHEN HYDRAULIC POWER IS SUPPLIED.
(6) Supply pressure to the hydraulic system that supplies the PCA that was replaced (Ref 29-11-00).
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757 MAINTENANCE MANUAL
S 822-033
(7)
Do these steps to adjust the aileron PCA:
(a)
Adjust the PCA input rod until the aileron trailing edge is below the main flap trailing edge (retracted) a small distance.
(b)
Adjust the input rod for the PCA to move the aileron up and do this check:
NOTE: Always move the aileron up when you do the last control
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