SEE A
TORQUE
TUBES APCS OUTPUT
(REF) RODS (REF)
(3 LOCATIONS)
TORQUE BOX
(REF)
AFT LEFT APCS
QUADRANT (REF) SEE B
SEE B CENTER APCS
RIG PIN E/ST 7 FEEL AND CENTERING UNIT (REF) A FWD SEE B RIGHT APCS OUTBD
Figure 401 (Sheet 1) Autopilot Pitch Control Servo
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A
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MAINTENANCE MANUAL
HYDRAULIC RETURN (REF)
ELECTRICAL CONNECTOR (REF)
HYDRAULIC
PRESSURE
(REF)
8.
FILTER
9.
PACKING
10.
UNION
7. ROD ASSEMBLY
11.
PACKING
12.
UNION
1.
BOLT
2.
WASHER
TORQUE BOX (REF)
3. SERVO ASSEMBLY
4. BOLT OUTPUT CRANK
JAMNUT (REF)
(REF)
5. WASHER
6. NUT
AUTOPILOT PITCH CONTROL SERVO (TYPICAL)
B
Autopilot Pitch Control Servo
Figure 401 (Sheet 2)
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757 MAINTENANCE MANUAL
(e)
For the center servo: 1) 11E20, FLT CONT CMPTR PWR CENTER 2) 11E21, FLT CONT CMPTR SERVO CENTER
(f)
For the right servo: 1) 11E35, FLT CONT CMPTR PWR RIGHT 2) 11E36, FLT CONT CMPTR SERVO RIGHT
S 014-006
WARNING:_______STAY OFF THE CONTROLS BAY ACCESS DOOR, 313AL. THE WEIGHT OF PERSONS ON THIS DOOR COULD CAUSE ITS SPRING-LOADED LATCHES TO RELEASE. PERSONS COULD FALL THROUGH THE OPENING AND BE INJURED.
WARNING: STAY OFF THE SERVICE ACCESS DOOR, 311AL, IF IT IS OPENED (NOT REQUIRED FOR THIS PROCEDURE). THE WEIGHT OF PERSONS ON THIS DOOR COULD CAUSE ITS SPRING-LOADED LATCHES TO RELEASE. PERSONS COULD FALL THROUGH THE OPENING AND BE INJURED.
(6) Open access panel 313AL (Ref 06-42-00).
D. Remove Autopilot Pitch Control Servo
S 034-007
(1)
Disconnect the electrical connector from servo.
S 034-008
(2)
Remove the bolt (4), the nut (6) and the washer (5) from the rod assembly (7).
S 034-066
(3)
Disconnect the rod assembly from the servo output crank.
S 034-009
(4)
Disconnect the hydraulic lines.
S 434-010
(5)
Seal the hydraulic lines and servo hydraulic ports with caps.
S 024-011
(6)
Hold the servo and remove the bolts (1), the washers (2) and the servo (3).
NOTE: The servo assembly weighs 17 pounds.
____
TASK 22-12-01-424-067
3. Install the Autopilot Pitch Control Servo_________________________________________
A. Equipment
(1) Rig Pin E/ST 7 - P/N B20003-21 from set
B20003-XX (Ref 20-10-24)
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B. Parts
~.............................................................................. | MM | | IPC | ................. ............................ | FIG | ITEM | NOMENCLATURE | SUBJECT | FIG | ITEM | ................................................................................ | 401 | 1 | Bolt | 27-31-53| 01 | 113 | | | 2 | Washer | | | 114 | | | 3 | Servo Assembly | | | 112 | | | 4 | Bolt | | | 95 | | | 5 | Washer | | | 97 | | | 6 | Nut | | | 99 | | | 7 | Rod Assembly | | | 101 | 2......…........…...................................…..........…......…........1
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