S 012-042
(1)
Open the access door 3701.
(2)
Remove the access panels 3801, 3802.
S 212-044
(3)
Do this task: Visually Inspect the Elevator Feel and Centering Unit for excessive wear, looseness, and damage. (AMM 27-31-64/601).
(4)
Replace the access panels.
(5)
Close the access doors.
S 012-043
S 412-045
S 412-046
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A 737-300/400/500MAINTENANCE MANUAL
LOOKING AFT
B
Elevator Power Control Switches
Figure 201
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A 737-300/400/500MAINTENANCE MANUAL
FLIGHT CONTROLS LOCK ASSEMBLY F80049-1
FLIGHT CONTROLS SHUTOFF VALVE
SEE A MANUAL OVERRIDE LEVER (SHOWN IN POSITION 3)
FLIGHT CONTROLSFWD A OR B HYDRAULIC MODULAR PACKAGE
A
Flight Controls Hydraulic Modular Lock Installation
Figure 202
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A 737-300/400/500MAINTENANCE MANUAL
SEE A
ELEVATOR CONTROL PUSHROD
FEEL AND CENTERING UNIT
FWD
A
Elevator Feel and Centering Unit/Control Pushrod
Figure 203
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M12158
A
737-300/400/500MAINTENANCE MANUAL
ELEVATOR AND TAB CONTROL SYSTEM - ADJUSTMENT/TEST
_________________________________________________
1. General_______
A. There are seventeen tasks in this procedure:
(1)
GENERAL
(2)
The operational test of the elevator and tab control system
(3)
The operational test of the elevator manual control system
(4)
The operational test of the differential pressure switch
(5)
The adjustment of the elevator and tab control system
(6)
The system test of the elevator and tab control system
(7)
The test of the elevator surface friction and balance
(8)
The test of the elevator limit travel
(9)
The test of the elevator output torque tube bus linkage
(10)
The test of the elevator tab linkage
(11)
The test of the manual mode operation
(12)
The test of the power mode operation
(13)
The test of the neutral shift operation
(14)
The test of the mach trim actuator
(15)
The test of the feel force system and autopilot authority
(16)
The test of the hydraulic isolation system
(17)
The test of the sensors null
(18)
The elevator power off flight test.
B.
It might be necessary to do a flight test in the elevator power off trim setting when you replace or adjust certain elevator components. Refer to the Elevator Power Off Flight Test below for details.
C.
Flow diagram, ref Figure 507A, can be used as a reference guide in adjusting the elevator tab pushrod.
TASK 27-31-00-715-001
2. Operational Test - Elevator and Tab Control System__________________________________________________
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