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Stabilizer Trim Jackscrew Setting
Figure 502 (Sheet 1 of 2)/27-31-00-990-804
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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Stabilizer Trim Jackscrew Setting
Figure 502 (Sheet 2 of 2)/27-31-00-990-804
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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Elevator Aft Control Quadrant Rig Pin Location
Figure 503/27-31-00-990-805
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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TASK 27-31-00-820-802
7. Elevator Control Pushrods - Adjustment
(Figure 502, Figure 503, Figure 504, Figure 505, Figure 523)
A. General
(1) Use this test to adjust the elevator control pushrods which connect the output torque tube to the
elevators.
NOTE: For each elevator tab, if both pushrods are adjusted, then Elevator Power-Off Flight -
Test, TASK 27-31-00-710-803 Elevator Power-Off Flight - Test, TASK 27-31-00-710-803
is necessary. If only one pushrod is adjusted and you can verify that the remaining
rod has not been replaced or adjusted since the last flight test, then this flight test is
not necessary. If only one pushrod is adjusted and you cannot verify that the
remaining pushrod has not been replaced or adjusted since the last flight test, then
the Elevator Power-Off Flight - Test, TASK 27-31-00-710-803 Elevator Power-Off
Flight - Test, TASK 27-31-00-710-803 is necessary.
B. References
Reference Title
27-31-00-700-801 Null Procedure - Mach Trim Actuator (P/B 201)
27-31-00-800-801 Elevator Hydraulic System A and B - Pressurization (P/B 201)
27-31-00-800-802 Remove Pressure from the Elevator Hydraulic Systems A and B
(P/B 201)
C. 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-1677 Assembly - Trammel Bar, Stabilizer Trim Actuator
(Part #: F80055-1, Supplier: 81205, A/P Effectivity: 737-100, -200,
-200C, -300, -400, -500, -600, -700, -700C, -700ER, -700QC, -800, -900,
-900ER, -BBJ)
D. Consumable Materials
Reference Description Specification
G01912 Lockwire - Monel (0.032 In. Dia.) NASM20995N~
C32
(QQ-N-281)
E. Location Zones
Zone Area
311 Area Aft of Pressure Bulkhead - Left
312 Area Aft of Pressure Bulkhead - Right
317 Tail Cone Compartment - Left
318 Tail Cone Compartment - Right
F. Access Panels
Number Name/Location
311BL Stabilizer Trim Access Door
318BR Tailcone Access Door
737-600/700/800/900
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G. Prepare for the Adjustment
SUBTASK 27-31-00-860-020
(1) Do this task: Remove Pressure from the Elevator Hydraulic Systems A and B,
TASK 27-31-00-800-802.
SUBTASK 27-31-00-860-021
(2) Do this task: Null Procedure - Mach Trim Actuator, TASK 27-31-00-700-801.
SUBTASK 27-31-00-010-033
(3) Open this access panel:
Number Name/Location
311BL Stabilizer Trim Access Door
SUBTASK 27-31-00-010-002
(4) Remove this access panel:
Number Name/Location
318BR Tailcone Access Door
SUBTASK 27-31-00-860-022
(5) Use the bar, SPL-1677 to set the "B" dimension at 4 units of trim (39.89 +/- 0.01 inches or 1013.2
+/- 0.3 mm) (Figure 502).
H. Elevator Control Pushrods Adjustment
SUBTASK 27-31-00-860-023
(1) Push down on the trailing edge of the right elevator, to bottom out the elevator PCU’s in the
extended position.
SUBTASK 27-31-00-710-002
(2) Make sure the right elevator is in the full down position with the inboard end of the elevator
trailing edge 10.84 +0.09/-0.32 inches (275.3 +2.3/-8.1 mm) below the index mark (Figure 523).
(a) Remove the nut [27], washer [26], nut [25], washers [24], and bolt [23] to disconnect the
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737-600/700/800/900 AIRCRAFT MAINTENANCE MANUAL飞机维护手册2(137)
