B.
Special Tools and Equipment
(1)
F80025-1, Rudder Sling Assembly
C.
Consumable Materials
(1)
C00308 Corrosion Preventive Compound - MIL-C-11796, Class III
D.
References
(1)
27-21-00/201, Rudder and Rudder Trim Control System
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH A GRAPHITE OR ALUMINUM ú
27-21-12
RUDDER ú
ú 01 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. Page 401Nov 15/98
A
737-300/400/500MAINTENANCE MANUAL
(2)
27-21-00/501, Rudder and Rudder Trim Control System
(3)
27-21-11/401, Rudder
(4)
27-21-91/401, Rudder Power Control Unit
(5)
27-21-91/601, Rudder Power Control Unit
(6)
AMM 27-21-24/601, Standby Rudder Actuator
(7)
AMM 27-21-24/601, Standby Rudder Actuator
E.
Access
(1)
Location Zones
708 Rudder
(2)
Access Panels
9512L TE Access Panel - Rudder
9514R TE Access Panel - Rudder
9515L TE Access Panel - Rudder
F.
Prepare the Aluminum Rudder for the Installation
S 864-002
(1)
Remove the power from the systems A, system B, and standby hydraulic systems (Ref 27-21-00/201).
S 014-012
(2)
Make sure the access panels 9512, 9514, and 9515 are removed from the vertical fin.
S 014-013
(3)
Make sure the hinge coverplates and fairings on each side of the rudder are removed.
S 224-005
(4)
Make sure the connection of the power control unit to the rudder is not worn (Ref 27-21-91/601).
S 224-006
(5)
Make sure the connection of the standby rudder actuator to the rudder is not worn (AMM 27-21-24/601).
EFFECTIVITYùùùùùùùùùùùùùùùùùùùùùùùùùùùùùù. AIRPLANES WITH A GRAPHITE OR ALUMINUM ú
27-21-12
RUDDER ú
ú 01 ú BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details. Page 402Nov 15/98
A
737-300/400/500MAINTENANCE MANUAL
S 494-007
(6)
Install the rudder sling on the rudder.
S 014-008
(7)
Remove the seals and the seal attachment plates from each side of the vertical fin at the slot for the rudder balance weight.
NOTE: This gives clearance at the balance weights when you put the
____
rudder in its position.
S 034-009
(8)
Loosen all of the trailing edge seals of the vertical fin and push the seals fully forward.
S 034-010
(9)
Loosen the bolts that attach the hinge segments to the rudder front spar. Do not loosen the number 1 hinge segment.
NOTE: The hinge segments must move freely up and down in the shear
____ plates. You should have removed all the bearing bars with the graphite rudder. The bearing bars are not used with the aluminum rudder.
S 624-011
(10)
Apply corrosion preventive compound to the hinge bolts.
G.
Install the Aluminum Rudder
S 424-014
(1)
Put the rudder in its position on the vertical fin using the rudder sling. Use ropes to control the rudder.
S 424-015
(2)
Install and tighten the hinge bolts at the No. 1, 7, 2, 3, and 6 rudder hinges in that sequence. Tighten the hinge bolts on the No. 1 and 2 hinges to 95 to 110 pound-inches (190 pound-inches maximum to align the cotter pin). Tighten the hinge bolts on the No. 3, 6 and 7 hinges to 60 to 85 pound-inches (140 pound-inches maximum to align the cotter pin).
NOTE: Attach the bonding jumpers at the applicable hinges when you
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