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(d) Install the bolts, washers, spacers, and bushings that follow:
1) At hinges 1, 4, 5, 6, 8, and 9, install the bushings [32], washers [31], and bolts [30] to the
hinge fittings.
2) At hinge 2, install the spacer [5], bushing [6], washer [7], and bolt [8] to the hinge fitting.
3) At hinge 3, install the bushing [18], washer [17], and bolt [16] to the hinge fitting.
4) At hinge 7, install bushing [38], washer [37], and bolt [36] to the hinge fitting.
(e) Release the RUDDER [1] slowly until the load is on its hinges.
(f) Make sure the torque required to rotate the bolts is less than 100 in-lb (11.3 Nm).
(g) Install the nuts, washers, and pins in the order that follow:
1) At hinge 2, install the washer [4] and nut [3].
a) Tighten the nut [3] to 150 in-lb (16.9 Nm) -- 200 in-lb (22.6 Nm).
NOTE: Tighten the nut [3] to the lower end of the torque range. Continue to tighten
the nut until the next castellation aligns with the hole in the bolt [8].
b) Install the new pin [2].
2) At hinges 1, 4, 5, 6, 8, and 9, install the washers [33] and nuts [34].
a) Tighten the nuts [34] to 150 in-lb (16.9 Nm) -- 200 in-lb (22.6 Nm).
NOTE: Tighten the nuts [34] to the lower end of the torque range. Continue to
tighten the nut until the next castellation aligns with the hole in the bolts
[30].
b) Install the new pin [35].
3) At hinge 3, do these steps:
a) Install the bushing [19] at hinge 3.
b) Adjust the bushing until it is against the fin bearing with finger tight pressure only.
c) Install the washers [20] and nut [21].
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d) Tighten the nut [21] to 150 in-lb (16.9 Nm) -- 200 in-lb (22.6 Nm).
NOTE: Tighten the nut [21] to the lower end of the torque range. Continue to
tighten the nut until the next castellation aligns with the hole in the bolts
[16].
e) Install the new pin [22].
f) Install the lockwire, G01048 from the bushing [19] to hinge fitting.
g) Fill the holes of the lockwire, G01048 with sealant, A00247.
4) At hinge 7, install the nut [42].
a) Tighten the nut [42] to 150 in-lb (16.9 Nm) -- 200 in-lb (22.6 Nm).
NOTE: Tighten the nut [42] to the lower end of the torque range. Continue to
tighten the nut until the next castellation aligns with the hole in the bolt
[36].
b) Install the new pin [43].
SUBTASK 27-21-11-620-001
(4) Apply sealant, A00247 to both ends of the bonding jumper [47] and their fasteners.
SUBTASK 27-21-11-420-002
(5) Connect the control rod for the rudder position transmitter to the vertical fin:
(a) Install the washer [25], washer [24], and bolt [23].
SUBTASK 27-21-11-420-003
(6) Install the bolt [44], washers [45], and nut [46] to connect the bonding jumper [47] to the vertical
fin at hinge 9.
(a) Use the bonding meter, COM-1550 ohmmeter to make sure there is a maximum of 0.010
ohm between the vertical fin and the rudder [1].
SUBTASK 27-21-11-080-002
(7) Remove the sling, SPL-2033.
SUBTASK 27-21-11-220-004
(8) Make sure that there is clearance between all the seals and the forward part of the rudder and
the balance weight.
NOTE: Manually move the rudder approximately seven degrees in each direction to examine
the clearance.
SUBTASK 27-21-11-710-001
(9) Move the rudder to the left and right from the neutral position.
(a) Make sure that rudder moves left and right a minimum of 30 degrees from the neutral
position.
SUBTASK 27-21-11-420-004
(10) Do this step to connect the rudder standby power control unit (PCU) to the RUDDER [1]:
(a) Install bolt [26], washer [27], bushing [50], washer [28], and nut [29]
(b) Tighten the nut [29] to 400 in-lb (45.2 Nm) -- 500 in-lb (56.5 Nm).
SUBTASK 27-21-11-420-005
(11) Do these steps to connect the rudder main PCU to the RUDDER [1]:
(a) Install the bushing [11], bolt [10], bolt [9], washer [12], and nut [13].
1) Tighten the nut [13] to 800 in-lb (90.39 Nm) -- 960 in-lb (108.46 Nm).
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AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
GUN ALL 27-21-11
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BOEING PROPRIETARY - Copyright#Unpublished Work - See title page for details
CAUTION: DO NOT TIGHTEN THE NUT [13] AFTER YOU TIGHTEN THE NUT [15]. YOU CAN
CAUSE DAMAGE TO EQUIPMENT.
(b) Install washer [14] and nut [15].
1) Tighten the nut [15] to 400 in-lb (45.2 Nm) to 480 in-lb (54.2 Nm).
GUN 001-005, 155-157, 201-999 PRE SB 737-27-1253
(c) Install the control rod (or rods) that you removed between the torque tube and the main
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL飛機維護手冊2(82)
