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(c) Remove the pressure lines from the air data model test set, COM-1914 or regulator,
SPL-1742, or equivalent, from the pitot probes.
SUBTASK 27-31-17-410-006
(5) Close this access panel:
Number Name/Location
311BL Stabilizer Trim Access Door
------------------------- END OF TASK ---------------------------
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ELEVATOR FEEL SHIFT MODULE - REMOVAL/INSTALLATION
1. General
A. This procedure has these tasks:
(1) A removal of an elevator feel shift module
(2) An installation of an elevator feel shift module.
TASK 27-31-20-000-801
2. Elevator Feel Shift Module Removal
(Figure 401, Figure 402)
A. References
Reference Title
24-22-00-860-811 Supply Electrical Power (P/B 201)
24-22-00-860-812 Remove Electrical Power (P/B 201)
27-31-00-800-802 Remove Pressure from the Elevator Hydraulic Systems A and B
(P/B 201)
34-11-00-790-802 Static and Total Air Pressure System - Pressurization (P/B 201)
B. Location Zones
Zone Area
211 Flight Compartment - Left
212 Flight Compartment - Right
311 Area Aft of Pressure Bulkhead - Left
312 Area Aft of Pressure Bulkhead - Right
C. Access Panels
Number Name/Location
311BL Stabilizer Trim Access Door
D. Prepare for the Removal
SUBTASK 27-31-20-010-002
(1) Open this access panel:
Number Name/Location
311BL Stabilizer Trim Access Door
SUBTASK 27-31-20-760-001
(2) Do this task: Supply Electrical Power, TASK 24-22-00-860-811.
SUBTASK 27-31-20-860-001
(3) Put the SYSTEM A FLIGHT CONTROL SHUTOFF and the SYSTEM B FLIGHT CONTROL
SHUTOFF switches on the P5 flight control panel, forward overhead panel to the OFF position.
SUBTASK 27-31-20-860-002
(4) Open these circuit breakers and install safety tags:
F/O Electrical System Panel, P6-2
Row Col Number Name
B 2 C01064 AFCS SYS B MACH TRIM DC
B 3 C01046 AFCS SYS B FCC DC
B 4 C00716 AFCS SYS B ENGAGE INTLK
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Row Col Number Name
B 10 C00207 FLIGHT CONTROL STAB TRIM CONT
C 1 C01037 AFCS SYS B MACH TRIM AC
C 2 C01042 AFCS SYS B SNSR EXC AC
D 10 C00840 FLIGHT CONTROL STAB TRIM ACTUATOR
F/O Electrical System Panel, P6-3
Row Col Number Name
D 13 C00311 INDICATOR MASTER DIM BUS 1
D 14 C00312 INDICATOR MASTER DIM BUS 2
SUBTASK 27-31-20-860-003
(5) Do this task: Remove Pressure from the Elevator Hydraulic Systems A and B,
TASK 27-31-00-800-802.
SUBTASK 27-31-20-860-004
(6) Remove pressure from the alternate pitot systems No. 1 and 2. To remove it, do this task: Static
and Total Air Pressure System - Pressurization, TASK 34-11-00-790-802.
SUBTASK 27-31-20-760-002
(7) Do this task: Remove Electrical Power, TASK 24-22-00-860-812.
E. Elevator Feel Shift Module Removal
(Figure 402)
SUBTASK 27-31-20-020-001
WARNING: RELEASE THE CONNECTION SLOWLY AND LET THE PRESSURE DECREASE BEFORE
YOU COMPLETELY REMOVE THE HYDRAULIC LINE. IF YOU DISCONNECT THE
HYDRAULIC LINE WHEN IT HAS PRESSURE, A SPRAY OF HYDRAULIC FLUID CAN
CAUSE INJURY TO PERSONS.
(1) Disconnect the hydraulic lines [4] from the elevator feel shift module [1].
(a) Install the caps and plugs on the open ports and hydraulic lines [4].
SUBTASK 27-31-20-480-001
(2) Disconnect the electrical connector [5] from the elevator feel shift module [1].
SUBTASK 27-31-20-020-002
(3) Hold the elevator feel shift module and remove the bolts [2] and washers [3] that connect the
elevator feel shift module [1] to the bracket.
SUBTASK 27-31-20-480-002
(4) Remove the elevator feel shift module [1].
------------------------- END OF TASK ---------------------------
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Stabilizer Trim Jackscrew Adjustment
Figure 401 (Sheet 1 of 2)/27-31-20-990-801
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737-600-700-800-900 AIRCRAFT MAINTENANCE MANUAL飞机维护手册3(38)
