D.
E.
F.
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737-300/400/500MAINTENANCE MANUAL
Access
(1)
Location Zones 101/102 Control Cabin 706 Vertical Stabilizer 708 Rudder
(2)
Access Panels 9525L Access Door on Fin 9530L Access Door on Fin
References
(1)
27-21-00/201, Rudder and Rudder Trim Control System
(2)
27-21-61/601, Rudder Aft Quadrant
(3)
32-00-01/201, Ground Lock AssembliesPrepare for the Installation
S 864-015
(1)
Remove the power from the rudder hydraulic systems (Ref 27-21-00/201).
S 214-016
(2)
Make sure rig pins R-3 and R-5 are installed as shown (Fig. 402).
S 214-017
(3)
Examine the rudder aft quadrant at the installation points for worn
areas (Ref 27-21-61/601).Install the Rudder Aft Quadrant (Fig. 401)
S 424-018
(1)
Put the washer and the right bearing housing on the quadrant shaft.
S 434-019
(2)
Install the washer and nut on the right side of the quadrant shaft.
(a)
Tighten the nut to 190-280 pound-inches.
(b)
Install a cotter pin.
S 424-020
(3)
Put the quadrant on the shaft with the input crank pointed in the left direction.
S 434-021
(4)
Install the bolts, washers and nuts to hold the quadrant to the quadrant shaft.
(5)
Put the left bearing housing on the quadrant shaft.
S 434-023
(6)
Install the bolts and washers to hold the two bearing housings to the structure.
S 424-022
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737-300/400/500MAINTENANCE MANUAL
(7) S 824-024Turn the quadrant and make sure the quadrant shaft moves freely in the bearing housings.
(8) S 434-025Connect cables RA and RB to the quadrant and install the cable retainers with screws, washers, and nuts.
(9) S 434-026Connect cables RA and RB at the turnbuckles.
S 434-027
(10)
Tighten the turnbuckles until the cables are not loose.
S 434-028
(11)
Connect the input rod to the input crank with the bolt, the washers, and the nut.
S 094-029
(12)
Remove rig pin R-3.
S 824-030
(13)
Adjust cables RA and RB to the tension shown in Figure 402.
(a)
Make sure rig pins R-3 and R-4 can be easily installed at the same time.
NOTE: Rig pin R-5 must be installed.
____
S 094-031
(14)
Remove the rig pins and install the turnbuckle locking clips.
S 864-032
(15)
Supply power to the rudder hydraulic systems (Ref 27-21-00/201).
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737-300/400/500MAINTENANCE MANUAL
S 044-040
(16) Install the lockout pin for the nose gear steering (Fig. 404) (Ref 32-00-01/201).
NOTE: It is not necessary to install the lockout pin if the
____ airplane is on jacks and the nose landing gear is fully extended.
S 864-034
(17)
Operate the rudder pedals and examine the rudder for smooth operation and the specified travel (Fig. 403).
S 864-036
(18)
Remove the power from the rudder hydraulic systems (Ref 27-21-00/201).
S 444-041
(19)
Remove the lockout pin from the nose gear steering (Ref 32-00-01/201).
(20)
Install the access panels.
S 414-037
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