S 434-037
(9)
Make sure that the run-on torque for the nut (18) is 90-400 pound-inches (10.2-45.2 newton-meters), then tighten the nut to 1300-2000 pound-inches (147-226 newton-meters).
S 094-038
(10)
Remove the plugs from the hydraulic lines (10) and the caps from the PCA ports (9).
S 434-039
(11)
Connect the hydraulic lines (10) to the PCA (9).
S 434-040
(12)
Align the pogo rod (5) to the PCA summing lever and install the bolt (6), washer (7), and nut (8).
NOTE: It is necessary to adjust the elevator PCA pogo rod if the
____ adjustment for the pogo rod was changed while it was disconnected (AMM 27-31-00/501).
S 434-041
(13)
Connect the electrical connector to the PCA (9).
(14)
Remove the elevator PCA lockout equipment (Fig. 402).
(15)
Remove the DO-NOT-OPERATE tags from the control columns.
S 094-042
S 094-044
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MAINTENANCE MANUAL
S 864-043
(16)
Release the control columns and put them back to the center position.
S 864-092
(17)
Remove the DO-NOT-CLOSE tags and close these circuit breakers on the overhead panel, P11:
(a)
11B19, STAB TRIM ALT (IF INSTALLED)
(b)
11C12, STAB TRIM SHUTOFF RIGHT
(c)
11C13, STAB TRIM SHUTOFF LEFT
(d)
11H11 or 11C05, STAB TRIM CONT L
(e)
11H17, FLT CONT SHUTOFF TAIL LEFT
(f)
11H18, FLT CONT SHUTOFF TAIL CTR
(g)
11H20, STAB TRIM CONT R
(h)
11H28, FLT CONT SHUTOFF TAIL RIGHT
(i)
11J10, PCU MON SENSOR
(j)
11J11, PCU MON MOD
S 864-090
(18)
Move the RIGHT and CENTER STAB TRIM SHUTOFF valve switches on the control stand panel, P10, to the NORM position.
S 864-091
(19)
Put the L, R, and C FLT CONTROL SHUTOFF switches on the right side panel, P61, to the ON position.
S 644-048
(20)
Fully lubricate the link bearing with BMS 3-33 grease before you adjust the PCA. BMS 3-33 (recommended), BMS 3-24 (optional).
S 724-068
(21)
If you only replace one elevator PCA, then do these steps:
(a)
Pressurize the hydraulic system to one of the the PCAs that was not replaced (AMM 29-11-00/201).
NOTE: The center hydraulic system supplies pressure to the
____ inboard PCA. The left hydraulic system supplies pressure to the middle PCA. The right hydraulic system supplies pressure to the outboard PCA.
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(b)
(c)
(d)
(e)
(f)
(g)
(h)
(i)
(j)
(k)
757
MAINTENANCE MANUAL
Keep a record of the exact position of the elevator trailing
edge at the index plate.
Remove hydraulic power from the PCA that was not replaced
(AMM 29-11-00/201).
Supply hydraulic power to the other PCA that was not replaced
(AMM 29-11-00/201).
Keep a record of the exact position of the elevator trailing
edge at the index plate.
Remove hydraulic power from the PCA (AMM 29-11-00/201).
Supply hydraulic power to the replaced elevator PCA
(AMM 29-11-00/201).
Keep a record of the exact position of the elevator trailing
edge at the index plate.
Make sure that this position is +/- 0.05 inch (+/- 1.3 mm) from
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