757
MAINTENANCE MANUAL
(b)
On a replacement elevator, remove the plug bolts from the elevator upper skin panel.
(c)
Install the forward inboard and outboard hoist ring assemblies.
(d)
Install the aft clamp assembly.
(e)
Attach the elevator sling shackle to the hoist equipment.
(f)
Lift the elevator to the level of the attach points on the horizontal stabilizer.
S 864-029
(3)
Move the elevator to the stabilizer trailing edge such that the elevator lugs fit with the stabilizer hinges.
S 434-004
(4)
Install the elevator connecting parts as follows:
(a)
Install bolt (20), washers (17, 19), bushing (18), and tighten nut (16) to 440-650 lb-in (49.7-73.4 newton-meters).
(b)
Install bolt (5), washers (2, 4), bushing (3), and tighten nut (1) to 150-250 lb-in (16.9-28.2 newton-meters).
(c)
Install bolt (10), washers (7, 9), bushing (8), and tighten nut (6) to 150-250 lb-in (17.0-28.2 newton-meters).
(d)
Install bolt (32), washers (29, 31), bushing (30), and tighten nut (28) to 150-250 lb-in (17.0-28.2 newton-meters).
(e)
Install bolt (37), washers (34, 36), bushing (35), and tighten nut (33) to 150-250 lb-in (17.0-28.2 newton-meters).
(f)
Install bolts (42), washers (39, 41), bushings (40), and tighten nuts (38) to 150-250 lb-in (2 locations) (17.0-28.2 newton-meters).
(g)
Install bolt (25) as follows:
1) Turn bushing (26) in the hinge lug bushing until it touches the horizontal stabilizer hinge fitting bearing with finger-tight force.
2) Tighten locknut (27) against the hinge lug bushing to 90-120 lb-in (10.2-13.5 newton-meters). 3) Doubletwist lockwire bushing (26) and locknut (27) to attach on the outboard side of the elevator hinge fitting.
NOTE: Lockwire must prevent clockwise and counterclockwise
____
movements.
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BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
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MAINTENANCE MANUAL
4) Install bolt (25), washers (22 and 24), bushing (21), and nut (23), and tighten nut (23) to 440-650 lb-in (49.7-73.4 newton-meters).
Install three sets of bolts (11), washers (12, 14), bushings (13), and nuts (15) in the PCA's reaction link hinges.
NOTE: To tighten nut (15) make sure that the nut run-on torque
____ before clamp-up is 90-400 lb-in (10.2-45.1 newton-meters), then tighten to 1300-2000 lb-in (147-224 newton-meters).
Install three sets of bolts (11), washers (12, 14), bushings (13), and nuts (15) in the PCA hinges.
NOTE: To tighten nut (15) make sure that the nut run-on torque
____ before clamp-up is 90-400 lb-in (10.2-45.1 newton-meters), then tighten to 1300-2000 lb-in (147-225 newton-meters).
Do these steps to install the inboard bonding jumper (3):
NOTE: Bolt (2) is an electrical bonding fastener to the
____ elevator upper skin panel.
1) Prepare, clean and apply BMS 10-21 Type I to the countersink hole in the elevator upper skin panel (Ref 51-24-02).
2) Install bolt, washers, jumper and nut (2, 4, 3, and 5) dry. 3) Finish the head of bolt (2) as follows: a) Apply one coat BMS 10-79, Type II primer (Ref 51-21-10). b) Apply BMS 10-86, Type I or II, gray (Ref 51-21-10). 4) Finish nut (5) and jumper (3) end as follows: a) Apply one coat of BMS 10-11, Type I primer after the bonding jumper is installed (Ref 51-21-10).
b) Seal with BMS 5-95.Do these steps to install the outboard bonding jumper (7): 1) Install bolt, jumper, washer and nut (8, 7, 9 and 10). 2) Finish bolt (8), nut (10) and jumper (7) end as follows:
a) Apply one coat of BMS 10-11, Type I primer after the bonding jumper is installed (Ref 51-21-10).
b) Seal with BMS 5-95.Use a milliohmeter to do an electrical resistance test at the inboard and outboard jumper locations as follows: 1) Measure electrical resistance between the upper skin panel
of the elevator and the stabilizer rear spar for the above locations.
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