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AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
GUN ALL 27-31-74
Page 405
Oct 10/2003
D633A101-GUN
BOEING PROPRIETARY - Copyright#Unpublished Work - See title page for details
Elevator Output Torque Tube Installation
Figure 401 (Sheet 4 of 4)/27-31-74-990-801
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
GUN ALL 27-31-74
Page 406
Oct 10/2003
D633A101-GUN
BOEING PROPRIETARY - Copyright#Unpublished Work - See title page for details
TASK 27-31-74-400-801
3. Elevator Output Torque Tube Installation
(Figure 401)
A. References
Reference Title
22-11-26-400-801 Autopilot Elevator Actuator Installation (P/B 401)
27-31-00-820-802 Elevator Control Pushrods - Adjustment (P/B 501)
27-31-00-840-802 Put the Elevator Systems A and B Back to the Condition Before the
Pressure Removal (P/B 201)
53-53-00-400-801 Tailcone Installation (P/B 401)
B. Tools/Equipment
NOTE: When more than one tool part number is listed under the same "Reference" number, the
tools shown are alternates to each other within the same airplane series. Tool part numbers
that are replaced or non-procurable are preceded by "Opt:", which stands for Optional.
Reference Description
SPL-1585 Kit - Rigging Pins, All Systems
(Part #: F70207-109, Supplier: 81205, A/P Effectivity: 737-600, -700,
-700C, -700ER, -700QC, -800, -900, -900ER, -BBJ)
C. Consumable Materials
Reference Description Specification
D00013 Grease - Aircraft And Instrument Grease MIL-PRF-23827
(NATO G-354)
(Supersedes
MIL-G-23827)
D. Expendables/Parts
AMM Item Description AIPC Reference AIPC Effectivity
1 Tube assembly 27-31-71-01-005 GUN 001-019, 021,
025-028, 101-112, 115-
121, 155-157, 201-999
E. Location Zones
Zone Area
315 APU Compartment - Left
316 APU Compartment - Right
F. Torque Tube Installation
SUBTASK 27-31-74-420-001
(1) Install the torque tube [1]:
(a) Put the torque tube assembly [1] in its position.
(b) Install the alignment pins to keep the bearing components in the inboard pivot clevis fittings
of the torque tube assembly [1].
(c) Lubricate the bushings, bolts, and bearings with grease, D00013.
(d) Connect the torque tube assembly [1] to the two outboard pivot brackets [3]:
1) At each of the torque tube assembly [1], install the bolts [16] with the bolt head inboard,
washers [19], washers [18], and nuts [17].
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
GUN ALL 27-31-74
Page 407
Oct 10/2007
D633A101-GUN
BOEING PROPRIETARY - Copyright#Unpublished Work - See title page for details
CAUTION: BE CAREFUL WHEN YOU INSTALL THE BOLTS [11]. YOU CAN CAUSE DAMAGE
TO THE BEARING COMPONENTS IF YOU HIT THE BOLTS [11] DURING THE
INSTALLATION.
(e) Connect the torque tube assembly [1] to the two inboard pivot brackets [2] and two reaction
links [10]:
1) At each end of the torque tube assembly [1], install the bushing [12] (on the right side
only), bushings [13], bolts [11], washers [14], and nuts [15].
a) Tighten the nuts [15] to 500-600 pound-inches (56.5-67.8 newton-meters).
CAUTION: DO NOT TIGHTEN THE NUT [15] AGAIN AFTER YOU TIGHTEN THE NUT
[20], YOU CAN CAUSE DAMAGE TO EQUIPMENT.
2) Install the washers [21] and nuts [20].
a) Tighten the nuts [20] to 150-220 pound-inches (16.9-24.9 newton-meters).
SUBTASK 27-31-74-420-002
(2) Install the mounting bracket [31] for the autopilot elevator actuators:
(a) Put the mounting bracket [31] in position.
(b) Install bolts [27] and washers [28].
(c) Install bolts [29] and washers [30].
(d) Install the bolts [32], washers [33] (under the bolt), washers [34] (under the nut), and nuts
[35].
(e) Install the bolts [36], washers [37] (under the bolt), washers [38] (under the nut), and nuts
[39].
SUBTASK 27-31-74-420-003
(3) Install the autopilot elevator actuators on the mounting bracket [31]. To install them, do this task:
Autopilot Elevator Actuator Installation, TASK 22-11-26-400-801.
SUBTASK 27-31-74-420-004
(4) Install the elevator control pushrods [4] to the torque tube assembly [1]:
(a) Install the bolts [26], washers [22], nuts [23], washers [24], and nuts [25].
NOTE: Do not tighten the nuts [24] and nuts [26]. The nuts [24] and nuts [26] will be
tightened after the adjustment.
SUBTASK 27-31-74-080-001
(5) Remove rig pin E-5 of the rig pin kit, SPL-1585 from the elevator aft quadrant.
SUBTASK 27-31-74-820-001
(6) Adjust the elevator control pushrods. To adjust them, do this task: Elevator Control Pushrods -
Adjustment, TASK 27-31-00-820-802.
　
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