27-31-00
ALL ú ú 06 Page 554 ú May 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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757
MAINTENANCE MANUAL
(d)
If you adjusted the input pogo rod, make sure the rod end threads are engaged correctly on the pogo rod (Fig. 509).
(e)
Tighten the jamnut on the pogo rod, but do not install a lockwire.
(f)
Make sure the elevator trailing edge aligns with the rig position mark on the index plate, | 0.05 inch (| 1.3 mm), after the pogo rod jamnut is tightened.
(g)
Make a mark on the index plate at the location of the left elevator trailing edge upper surface.
NOTE: This mark will be used as a datum to adjust the
____
inboard and outboard PCAs.
(h) Remove the hydraulic power from the middle PCA. 1) Remove the pressure from the left hydraulic system (AMM 29-11-00/201). 2) Put the L FLT CONTROL SHUTOFF switch on the P61 panel to the OFF position.
3) Open this circuit breaker on the P11 panel and attach a DO-NOT-CLOSE tag: a) 11H17, FLT CONT SHUTOFF TAIL LEFT
S 825-064
(3)
Do these steps to adjust the input pogo rod for the outboard PCA on the left elevator:
(a)
Supply power to the outboard PCA.
1) Remove the DO-NOT-CLOSE tag and close this circuit breaker on the P11 panel: a) 11H28, FLT CONT SHUTOFF TAIL RIGHT
2) Put the R FLT CONTROL SHUTOFF switch on the P61 panel to the ON position.
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.
3) Pressurize the right hydraulic system (AMM 29-11-00/201).
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27-31-00
ALL ú ú 07 Page 555 ú May 28/02
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
757
MAINTENANCE MANUAL
(b)
Make sure the trailing edge upper surface of the left elevator aligns, by less than | 0.05 inch (| 1.3 mm), with the datum mark from the middle PCA adjustment.
(c)
If the surface does not align correctly, adjust input pogo rod for the outboard PCA as necessary.
NOTE: Always adjust the elevator trailing edge up, in the
____ direction of the datum mark, not down.
(d)
If you adjusted the input pogo rod, make sure the rod end threads are engaged correctly in the pogo rod (Fig. 509).
(e)
Tighten the jamnut on the pogo rod, but do not install a lockwire.
(f)
Make sure the elevator trailing edge aligns with the datum mark on the index plate, | 0.05 inch (| 1.3 mm), after the pogo rod jamnut is tightened.
(g)
Remove the power from the outboard PCA. 1) Remove the pressure from the right hydraulic system (AMM 29-11-00/201). 2) Put the R FLT CONTROL SHUTOFF switch on the P61 panel to the OFF position.
3) Open this circuit breaker on the P11 panel and attach a DO-NOT-CLOSE tag: a) 11H28, FLT CONT SHUTOFF TAIL RIGHT
S 825-065
(4)
Do these steps to adjust the pogo rod for the inboard PCA on the left elevator:
(a)
Supply power to the inboard PCA.
1) Remove the DO-NOT-CLOSE tag and close this circuit breaker on the P11 panel: a) 11H18, FLT CONT SHUTOFF TAIL CTR
2) Put the C FLT CONTROL SHUTOFF switch on the P61 panel to the ON position.
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.
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